4 0 obj Completeness of 98 UOP-429 sulfonation,Wt.pct. Bạn đang xem bản rút gọn của tài liệu. Project Report on Linear Alkyl Benzene Sulphonate Project Report on Linear Alkyl Benzene Sulphonate includes Present Market Position and Expected Future Demand, Technology, Manufacturing Process, Investment Opportunity, Plant Economics and Project Financials. Linear Alkylbenzene (LAB) Production Costs & Technology for UOP DETAL and HF (Pacol, Define, PEP, Alkylation), EniChem/SASOL Monochloroparaffins LAB processes; and UOP (Molex) & ExxonMobil Chemical recovery) n-paraffins routes. UOP offers processes, catalysts, adsorbents and equip-ment for the production of LAB from kerosene or normal paraffins. x��[[�۶~���G��jy���@n��A/i��yH������%ײ�����%[�H���p8��7C���v�|��vɷ�^�������>�p}�n��������W�˦�-���Wo^'�n�?���'\$7ϟ���h�2�S���o�ϟ�������)_���������Vq6Y�!MF�)�YA�& �O������w��6ɛ6���&Sf��(wAy\`�L�`W����X 4]z��΋�ԣ%EV��%z�D�L��Ar=Y2::K�X�ʜ�"ѠS�/�ȘH���g��&i�&��J����&�>�|��`+Y��)I���Vf����(~u�:�@���H��t�M���:���v�k�!W%%Ynm�:�y&����Pg9p*Qe�Pc%2&�zD���&R�. LINEAR ALKYL BENZENE SULPHONATE - Project Report - Manufacturing Process - Cost - Investment Required. TPL commenced its operations with a Linear Alkyl Benzene (LAB) facility in 1988 with technology from UOP, USA. 1. US20040176654A1 US10/448,663 US44866303A US2004176654A1 US 20040176654 A1 US20040176654 A1 US 20040176654A1 US 44866303 A US44866303 A US 44866303A US 2004176654 A1 US2004176654 A1 US 2004176654A1 Authority US United States Prior art keywords fischer tropsch benzene paraffins alkylbenzene Prior art date 2003-03-07 Legal … 3 0 obj Report provides a comprehensive analysis from industry covering detailed reporting and evaluates the … endobj However, C11-LABtype (MW = 235) and C13-LAB (MW = 255) are also being produced in response to specificrequest from the detergent formulators.The most typical specifications of C12-LAB produced by the two most adopted alkylation processes (HF and Detal) are shown in Table 5.3.CRC_DK2374_Ch005.indd 859/29/2008 10:51:12 PM86Handbook of Detergents/Part F: ProductionTABLE 5.2LAB Characteristics vs. Alkylation Process2-Phenyl Isomers(Maximum %)AlCl3HFDetal251730DAT (Maximum %)50.50.5Alkyl-ChainLinearity (%)Bromine Index(Maximum)90–9293–9493–95521TABLE 5.3Typical Properties of Commercial C12-Type LABPropertyBromine indexSpecific gravityCarbon distribution (wt%)C10C11C12C13C142-Phenyl isomersFlash point (°C)Average molecular weightTypical Figures2–30.86–0.8711–1526–4030–3518–250–117–30140–145235–242The specificity of LAB required to be used for the production of LAS by sulfonation is basedon its several important quality characteristics; particularly• Molecular weight/C-chain distribution (requiring the correct setting of the sulfonationconditions)• Sulfonability (to ensure the highest conversion of LAB into LAS and minimize, particularly, by-products and the presence of unsulfonated matter in the LAS product)• Bromine index (low values indicate low unsaturation in the alkyl chain and respectively,the light color of the LAS product, entailing the achievement of sulfonation completenessunder mild conditions)• 2-Phenyl isomers content (high values ensure high solubility in water and high viscosityof LAS)• DAT content (low value means higher purity, better performance, and higher biodegradability of the LAS product)5.3 LINEAR ALKYLBENZENE-SULFONATION TECHNOLOGYLAS is obtained by reacting LAB with the SO3 functional group in a one-to-one ratio, thus resultingin a molecule capable of reducing the surface tension between two nonmiscible phases.There are many sources of SO3: H2SO4, oleum, pure gaseous SO3, chlorosulfonic acid, andsulfamic acid; however, the basic path leading to LAS formation is essentially the same as outlinedin Figure 5.4.CRC_DK2374_Ch005.indd 869/29/2008 10:51:13 PMProduction of Linear Alkylbenzene Sulfonate and α-Olefin Sulfonates87RH2SO4OleumSO3 gasSO3+SO3HRClSO3HSulfamic acidFIGURE 5.4LAB–SO3 reaction.RRR+R++ SO3HSO3−SO2−O−SO3−HSO2−O−SO3HR*2+RSO3HRSO2R + H2SO4SO2−O−SO2H2SO4 + RR+R**SO3H***+ H2O+ H2SO4+R3R* SulfonationSO3H2R** AgingSO3H*** HydrolysisFIGURE 5.5 LAB–SO3 reaction mechanism.The reaction between SO3 and the aromatic substrate is an electrophilic substitution reactionof the second order, and in the specific case of LAB, this reaction proceeds in accordance with themechanism shown in Figure 5.5 [3].When sulfonating LAB, the reaction is extended to the by-products in the LAB raw material;consequently, branched alkylates, DATs, and diphenylalkanes undergo sulfonation too, althougheach with a different speed (see Figure 5.6).The result of the preceding reactions is a sulfonic acid product characterized by the chemicaland physical specifications indicated in Table 5.4.CRC_DK2374_Ch005.indd 879/29/2008 10:51:13 PM88Handbook of Detergents/Part F: ProductionR1R1+ SO3SO3HR2R2CH3CH3+ SO3SO3H+ SO3SO3HFIGURE 5.6 SO3 reaction with LAB by-products.TABLE 5.4Chemical and Physical Characteristics of LASRangeActive content (%)Unsulfonated matter (%)Free H2SO4 (%)Water (%)Pour point (°C)Specific heat at 20°C (kJ/kg ⋅ °C)Viscosity at 20°C (mPa⋅s)Density at 20°C (g/cm3)Typical96.7–97.50.8–1.50.9–1.20.3–0.6(−10)–(−12)1.61500–18501.050–1.05597.21.31.00.5−101.615001.052The control of the preceding outlined reactions is the key point to ensure the production of LAShaving the best quality. After sulfonation, the aging and stabilizing steps are required to allow the“rearrangement” of sulfoanhydrides directly to sulfonic acid; thus maximizing, over a short time,the conversion of the feedstock into the final sulfonate.The aged and stabilized sulfonic acid is sent for storage or neutralization, without the necessityto dispose off any other effluent or by-product.CRC_DK2374_Ch005.indd 909/29/2008 10:51:14 PMProduction of Linear Alkylbenzene Sulfonate and α-Olefin Sulfonates91Continuous SO3 sulfonationProcess block diagramAirAlkylateAirdryingSO2/SO3productionExhaust gastreatmentSulfonationAging/stabilizingH2O/NaOHSulfurH2ONeutralizationLASFIGURE 5.8Continuous SO3 sulfonation.The technological switch to the use of gaseous SO3 as the sulfonating agent for the syntheticdetergent production has therefore been the most characteristic factor of the development that thesurfactant and detergent industry have experienced since the early 1960s [4,5].The SO3 gas, directly produced from the combustion of elemental sulfur and subsequent oxidation of the formed sulfur dioxide (SO2) with dry air to yield sulfur trioxide (SO3), is nowadays themost widely used sulfonating agent, therefore, it deserves a deeper description.The most updated LAB sulfonation plants are designed and operated in accordance to the configuration shown in Figure 5.9 and they should cope with the industry demand in terms of maximumyield, highest product quality, and minimized operation cost and environmental impact.The gaseous SO3 is generated by oxidation of the SO2 formed by direct combustion of elementalsulfur with dry air having a dew point of at least −60°C.Figures 5.10 and 5.11 illustrate the typical scheme of these process sections.The SO3 gas directly produced from the combustion of elemental sulfur and subsequent SO2oxidation has been a milestone in the design of continuous sulfonation processes, and has led to afast development of the design and efficiency of the process equipment employed for reacting theSO3 gas with organic substrates.The control over the LAB–SO3 reaction is totally dependent on the design approach adopted forthe reactor where the two reactants are contacted; therefore, the sulfonation reactor is indeed theheart of a sulfonation plant and its concept should be based on the deepest possible knowledge onwhat exactly takes place when LAB and gaseous SO3 react.The “cascade-type” sulfonation reactors [6] have been adopted in a large number of plants andconsidered as the “state-of-the-art” reactors until the mid-1970s, when new reactors based on theprinciple of the falling film were introduced [7].In such type of reactors, the combination of the LAB–SO3 reaction exothermicity (40.6 kcal/mol)and the almost instantaneous increase in the viscosity of the organic undergoing sulfonation indicate that the control of the reaction temperature in the organic phase is the most difficult target thatthe reactor should comply with.CRC_DK2374_Ch005.indd 919/29/2008 10:51:14 PMHandbook of Detergents/Part F: ProductionFIGURE 5.9Plant for continuous film sulfonation and sulfation.92CRC_DK2374_Ch005.indd 929/29/2008 10:51:14 PM93DryingcolumnDry airProduction of Linear Alkylbenzene Sulfonate and α-Olefin SulfonatesCoolingbatteryCooling waterRegenerationbattery(Small line)SteamAir drying unit.FIGURE 5.10Air blowerChillinggroupCooling waterCRC_DK2374_Ch005.indd 939/29/2008 10:51:16 PMCRC_DK2374_Ch005.indd 94FIGURE 5.11Diesel oilmanual chargingSulfurburnerSO3 production unit.Dry airMoltensulfurDry airHot airAir fanPreheatingburnerSO3 oxidationcolumnAir fanSO3 coolerOleumSO394Handbook of Detergents/Part F: Production9/29/2008 10:51:17 PM, Copyright © 2020 123Doc. Some other processes might desire the use of Oleum or Sulphuric acid. Linear Alkyl-Benzene (LAB) Linear Alkylbenzene Plants Technology. 4. ���]�����,]��s,κ`��F.���Lk8E���J�ա�6�ܽr�ڥ��.���Ǘ�����%,1g�ZcܥmCA�n29�6H|���ԙ�w�PxKef�A(:�/x�6�3�UrB{�5,+&��5H�#�8�w ����$ `1��m9� �bs*o�'c3���y�ΔAa��3e@(��|��WӬ��l���%4� They are mainly produced as intermediate in the production of surfactants, for … ... Tải bản đầy đủ (.pdf… The process of the invention makes use of a feed stream in the form of a condensation product from a low temperature Fischer-Tropsch reaction which would not, ordinarily, be thought of for producing linear alkyl benzene. A major ingredient of Household Detergents, Laundry Powders, Laundry Liquids, Dishwashing Liquids, Other Household Cleaners Linear Alkylbenzene Sulphonic Acid can be neutralized with caustic soda (NaOH) to form sodium alkylbenzene sulphonate-an … Introduction to Sugar , Fermentation Industry and Manufacture of Alcohol; Ethanol as Chemical Feedstock; PETROLEUM REFINING. According to the present invention there is a method of manufacturing alkyl benzene sulphonate by … Design by 123DOC, Xem và tải ngay bản đầy đủ của tài liệu tại đây (7.51 MB, 624 trang ), Hoàn thiện kế toán tiền lương và các khoản trích theo lương tại Công ty cổ phần Simcô Sông Đà, Kế toán tiền lương và các khoản trích theo lương tại Công ty cổ phần tư vấn và xây dựng Long Biên, Hoàn thiện kế toán nghiệp vụ bán hàng nội địa ở công ty xuất nhập khẩu nông sản thực phẩm Hà Nội, Kế Toán Chi Phí Sản Xuất Và Tính Giá Thành Sản Phẩm, Tổ chức công tác kế toán thành phẩm và tiêu thụ thành phẩm tại công ty cơ khí quang trung, Một số giải pháp nhằm giảm chi phí sản xuất để hạ giá thành sản phẩm của Xí nghiệp khai thác công trình thuỷ lợi huyện Gia Lộc - Hải Dương, Hoàn thiện công nghệ chế tạo và sản xuất thử nghiệm TV màu hình phẳng, Phân tích tình hình cung ứng, dự trữ và sử dụng vật tư và một số biện pháp nâng cao tình hình cung ứng, dự trữ và sử dụng vật tư tại Công ty cao su sao vàng, Tổ chức công tác kế toán nguyên vật liệu, công cụ dụng cụ ở Công ty cổ phần xây dựng Phương Nam, Tổ chức kế toán nguyên vật liệu và phân tích tình hình quản lý sử dụng nguyên vật liệu tại Xí nghiệp may Minh Hà. endobj Linear Alkylbenzene (a.k.a. A major ingredient of Household Detergents, Laundry Powders, Laundry Liquids, Dishwashing Liquids, Other Household Cleaners . Linear alkylbenzene (LAB) is the most common raw material in the manufacture of biodegradable household detergents. This loss implies the necessity of continuous removal of the formedwater or operating the process with excess of the sulfonating agent and eventually to separate,by physical settling, the weak-spent sulfuric acid that is not capable to comply with the desiredsulfonation reaction kinetics anymore.Regarding the involved process equipment and plant configuration, the sulfuric acid and oleumbased sulfonation plants have demonstrated evident limits to the possibility of their further improvement and development due to the foregoing chemical constraint.The process block diagram relevant to continuous oleum and SO3-based sulfonation processesare indicated in Figures 5.7 and 5.8, respectively.When oleum is the sulfonating agent, the reaction with the LAB raw material is carried out inliquid homogeneous phase and it requires a “digestion” time for achieving its completeness; this timedemand is a direct function of the excess oleum added with respect to the stoichiometric quantity.After digestion, the reaction mass has to be diluted with H2O to separate (by settling) the “spentacid;” the sulfonic acid mixture can be sent for storage or neutralization, whereas the spent acidCRC_DK2374_Ch005.indd 899/29/2008 10:51:13 PM90Handbook of Detergents/Part F: ProductionContinuous oleum sulfonationProcess block diagramOleumSulfonationAlkylateDigestionH2ODilutionSpent acidseparationH2O/NaOHSpent acidNeutralizationLASFIGURE 5.7 Continuous oleum sulfonation.may undergo storage or neutralization process as well, or it is collected (as a waste) and reprocessedto recover its SO2/SO3 content. Production Capacity The determination of production capacity is based on the availability of raw materials, manufacturing capacity that has been established in the market and the needs of the linear alkyl benzene as shown in the table below : <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Sulfonation and Sulfation Processes Norman C. Foster, Ph.D., P.E.  This invention relates to a process for producing linear alkyl benzene, the process including the steps of obtaining a hydrocarbon condensate containing olefins, paraffins and oxygenates from a … Linear alpha-olefins process 12. LABs are obtained from n-paraffins and benzene. Independent of its manufacturing process, the most widely used type of LAB has an average molecular weight of 240–242 corresponding to an average alkyl chain of C12. The feedstock, kerosene and fuel oil required are pumped through dedicated pipelines ensuring safe handling & minimizing transportation risks. The current industrial LAS production method includes sulfonation of linear alkylbenzene (LAB) with sulfur trioxide in tubular falling film reactors. It is highly informative on processes such as Air Drying, SO₃ Production, SO₃ Treatment, Linear Alkyl Benzene Sulphonation etc. ��i�pZ��X)]��иd�o��,?LbӞS�%��1:��R1ʗ�. Production of Linear Alkyl Benzene Sulphonic Acid (LABSA). Introduction : Status of Petroleum Refinery, Crude Oil and Natural Gas Origin, Occurrence, Exploration, Drilling and Processing, Fuel Norms Synthetic detergent industries in formulation of Washing powder, Detergent powder, Detergent cake, Liquid Soap, Cleaning powder, Scouring Bar, Oil soaps etc. 1.2. %���� The SO3 sulfonation does not involve theformation of water as a by-product, with consequent possibility to use the whole amount of SO3for the main reaction. This operation is usually done in the frame of a H2SO4 productionplant; therefore, the logistic of this operation is a key factor in determining the possibility of reusingthe spent acid.The process block diagram of the SO3-based sulfonation plant clearly shows the total absenceof liquid effluents and wastes, and it is based on a substantially stoichiometric reaction of SO3and the organic feedstock. Although these efforts have been initiatedfrom the beginning of the use of synthetic surfactants, new doubts concerning sulfonation chemistryCRC_DK2374_Ch005.indd 889/29/2008 10:51:13 PMProduction of Linear Alkylbenzene Sulfonate and α-Olefin Sulfonates89TABLE 5.5LAB Specs versus LAS CharacteristicsSolubilityDetergencyMolecularweight2-PhenilisomerDATBromineindexAlkyl-chainlinearity--ColorViscosityBiodegradability---are still arising, which is being followed by efforts to give a fully correct explanation to the involvedreaction mechanism.Historically, the source of the SO3 for LAB sulfonation was sulfuric acid (H2SO4) and, subsequently, the so-called oleum or fuming sulfuric acid made by enriching the concentrated sulfuricacid with SO3 (∼20% excess in most cases) [4].At the very beginning of the synthetic detergent production, most of the sulfonation processbased on sulfuric acid and oleum were of the discontinuous-batch type. <>>> Linear alkylbenzene 10. n-Paraffins are a product of jet kerosene hydrotreating, which are dehydrogenated to linear olefins, that are reacted with benzene in the presence of a catalyst, namely HF or AlCl3. PERP07/08S7 February 2009 How has the Linear Alkyl Benzene Sulphonic Acid Manufacturing industry performed so far and how will it perform in the coming years ? stream <> GPII-Production of Sulfonic Acid Salt Objective 4 The aim of this project is to utilize the sulfur from the oil and gas industry to produce Linear Alkyl Benzene Sulphonic Acid Salt (LABSA). Therefore, specific operating conditions should be properly set up to minimize the side reactions negatively affecting both the conversion yield and the product quality.The latter can also be affected by the main characteristics of the processed LAB raw material,and the specific influence detectable on the parameters commonly adopted for the quality evaluation of the LAS product are summarized in Table 5.5.The continuous development of the process design focused on appropriate sulfonation equipment that is necessary to transfer all the findings from the parallel laboratory studies on the LAB–SO3reaction kinetics and mechanisms to an industrial scale. DETAL unit. A sediment core from Oyster Pond in Falmouth, Massachusetts was analyzed for presence of LAS to determine if it could be used as an indicator of wastewater input to Oyster Pond. 1 0 obj Contact and buy Linear Alkyl Benzene Sulfonic Acid from here at WorldOfChemicals. China Linear Alkylbenzene manufacturers - Select 2020 high quality Linear Alkylbenzene products in best price from certified Chinese Las manufacturers, Lubricant Additive suppliers, wholesalers and factory on Made-in-China.com Raw materials for linear alkyl benzene production are benzene and kerosene that comes out of fractionation distillation towers along temperature range 190-250 C. º ( 20% of kerosene production ) which contains normal Using the GC/MS, concentrations were found and compounds were identified. Report includes feasibility report, profitability analysis, raw materials, break even points, formulations and formula and much more. Xem và tải ngay bản đầy đủ của tài liệu tại đây (7.51 MB, 624 trang ), 84Handbook of Detergents/Part F: ProductionCH3(CH2)mCH(CH2)nCH3Wherem, n = 0 ÷ 10m + n = 7 ÷ 10SO3HFIGURE 5.1LAS structure.LAB world consumption (kt)(2005)200West Europe420Latin America290Africa170Middle East240Far East570Southeast Asia80090NAFTA area600320East Europe400620FIGURE 5.2 LAB world consumption.Historically, LAS has progressively substituted the branched-chain alkyl benzene sulfonate(ABS) since the mid-1960s, mainly because of its substantially higher biodegradability due to itsdominant straight alkyl chain; thus resulting in both higher and more valuable application performance and much improved environmental acceptability.Today, LAS is the only type of alkylbenzene sulfonate used by the detergent industry and itsapplications have been extended to a whole range of formulated products.5.2 LINEAR ALKYLBENZENE SOURCES AND SPECIFICATIONSThe hydrophobic portion of the LAS molecule is provided by the LAB, which is the main determinant of the modified surface-tension property of LAS.Today, LAB is commercially produced by benzene alkylation reaction, catalyzed by Lewis-typeacid catalysts (AlCl3, HF, and Detal) [2].The use of chloroparaffins as an alkylating agent has declined in the last two decades; today,linear paraffins in the C10–C13 range are the hydrocarbons of choice for alkylation.LAB, having the structure formerly indicated in Figure 5.1, is a mixture of isomers and homologues whose quantity and type depend on the alkylation process adopted for its production.The basic steps of the commercially used benzene alkylation process are summarized inFigure 5.3.The linear paraffins used for LAB production are obtained by liquid- or vapor-phase extraction from kerosene followed by fractionation to obtain the C10–C13 cut or narrower C-chainCRC_DK2374_Ch005.indd 849/29/2008 10:51:12 PMProduction of Linear Alkylbenzene Sulfonate and α-Olefin Sulfonatesn-Paraffins + Cl2Chloro paraffins + HCln -Paraffins(−H2)85n-Mono olefins + H2++AlCl3 processHF processCx HyLAB+n-Paraffins(−H2)n -Mono olefins + H2Detal processFIGURE 5.3 Benzene alkylation processes.TABLE 5.1Typical LAB CharacteristicsLAB TypeAlkyl-ChainRangeAverageMolecularWeightTypical Alkyl-Chain DistributionC10C11C12C13C14C11-LABC12-LABC13-LABC10–C13C10–C13C10–C14231–236239–245252–25618–1911–150–148–4926–385–831–3232–3428–311–218–2554–58—0–16–8length range and thus producing alkylates with different molecular weights, as indicated inTable 5.1.The C-chain length of the n-paraffins used for the LAB production directly affect the molecularweight of the resulting alkylate, whereas the different catalysts are responsible for the structure andisomeric composition of the final LAB.Particularly, 2-phenyl isomers and dialkyltetralins (DAT) are the components that can be considered as more representative of the adopted alkylation process, as shown in Table 5.2.Independent of its manufacturing process, the most widely used type of LAB has an averagemolecular weight of 240–242 corresponding to an average alkyl chain of C12. What is the Project Feasibility of Linear Alkyl Benzene Sulphonic Acid Manufacturing Plant ? '�����4�ȶ���jY�٬\(��ӵ�y���T���@��6��ja�/���t]�j,�e��� %PDF-1.5 Linear alkylbenzenes (sometimes also known as LABs) are a family of organic compounds with the formula C 6 H 5 C n H 2n+1.Typically, n lies between 10 and 16, although generally supplied as a tighter cut, such as C 12-C 15, C 12-C 13 and C 10-C 13, for detergent use. Production Of Linear Alkyl Benzene Sulphonic Acid (labsa) Production of Linear Alkyl Benzene Sulphonic Acid (LABSA). LAB’s primary use is in the manufacture of Linear Alkyl Benzene Sulfonates (LAS). 3. The LAB market for TPL is evolving on a stable market platform, growing day-to-day with a dominant market share for its brand “SUPERLAB” . 2. What is Linear Alkyl Benzene Sulphonic Acid Manufacturing industry ? Linear internal olefins process 11. This work reviews a computational chemistry study, … LAB finds extensive application in the manufacture of domestic detergents, institutional and industrial cleaners. The PEP process removes aromatics from PACOL effluent stream, thus increasing the DETAL catalyst life, improving the LAB product quality and reducing the Heavy Alkylate production. Normal paraffins are derived from straight run kerosene. This is a detailed report on: Production Operations and Manufacturing Processes of LABSA. Some other processes might desire the use of Oleum or Sulphuric acid. The LAB manufacturing facility is integrated with the production unit of intermediate, Normal Paraffin. 3.4.2.4 Linear Alkyl Benzene Sulfonic Acid (Labsa/Acid Slurry) 16 3.4.2.4.1 Manufacturing Process 16 3.4.2.4.2 Chemical Reaction 17 3.4.2.4.3 Material Balance 17 3.4.2.5 Liquid Detergent (Formulation Product) 17 3.4.2.5.1 Manufacturing Process 17 3.4.2.5.2 Material Balance 18 3.4.2.6 Household Detergents (Formulation Product) 18 Linear alkylbenzene (LAB) is an organic compound with the formula C6H5CnH2n+1, where n is typically between 11 and 12. Linear Alkyl benzene Sulfonic Acid (LAS) is the main ingredient of many commercial formulations for industrial and domestic synthetic detergents. Synthetic Detergent and Linear Alkyl Benzene; FERMENTATION INDUSTRY. Linear Alkyl Benzene Sulphonic Acid (LAB Sulphonic Acid)- Soft Acid Slurry is main raw material for. ]����u�����ԙ\�GE���ݛ�]�X5�IZ7W��p�\L�\�&�-7�����|��2�Y\��-��[�.`k�tƌ�>����I^��I��|��/o�x�Pv�w���H���x�tO���`�st�/���\�L��CY��rJ��H�8��(Nq��^�Ė|�j���a���z����v�W2M~X����� �ur�-��B2��"�f��\[���f�����eS/�LZ���`�*���� 5430 West Marginal Way SW Seattle, WA 98106 – USA Tel: (206) 937-9954 Fax: (206) 932-3786 Huge amounts of sulfur are produced from the desulphurization process and sold to the chemical plants. LAB) refers to a group of organic compounds with a benzene "head" followed by a tail of linear chain with 10 to 16 carbons. E��ܽ%�j,���Y`������� Linear alkylbenzene (LAB) is produced by reacting benzene with alkyl groups containing 10 to 13 carbon atoms that are derived from normal ... Manufacturing processes 10. This important point reflects the extreme “sulfonating strength” of theSO3, particularly when compared to oleum and H2SO4. 4. LABSA (Linear Alkyl Benzene Sulphonic Acid) is produced by the sulphonation reaction of Alkyl Benzene with Sulphur trioxide (SO). Sulfonation of linear alkylbenzenes by reaction with sulfur trioxide is the predominant route to anionic surfactants other than soap. The opportunities to export linear alkyl benzene to overseas. Linear Alkylbenzene Sulphonic Acid can be neutralized with caustic soda (NaOH) to form sodium alkylbenzene sulphonate-an extensively applied anionic surfactant. Linear alkylbenzene sulfonate (LAS) is a common surfactant used in detergents worldwide. endobj Their evolution into a continuous process was fast as a result of the effort to optimize the rate of production capacity andquality as demanded by the outstanding and ever-increasing development of the detergent manufacturing industry.Both sulfuric acid and oleum when used as a sulfonating agent involve the stoichiometric formation of water as a by-product from the reaction with an organic substrate (see Figure 5.4).This water, due to the dilution effect on the still unreacted sulfuric acid, causes the progressiveloss of the latter’s reactivity. LAB is used almost wholly as an intermediate in the production of linear alkylbenzene sulphonate (LAS), which is a surfactant. 2 0 obj Controlling the linear alkylbenzene sulfonate (LAS) sulfonation process is a critical part of the LAS manufacturing process; this process can be monitored by … <> Environmental/Health Risk Assessment & Regional Supply/Demand Forecasts. In the case study presented here, alkylbenzenes are contacted with sulfur trioxide in a short residence time falling film reactor following which the liquid reaction product mixture is aged. We have a list of Linear Alkyl Benzene Sulfonic Acid suppliers, manufacturers, wholesalers and traders from across the globe selling it at a reasonable price. LABSA (Linear Alkyl Benzene Sulphonic Acid) is produced by the sulphonation reaction of Alkyl Benzene with Sulphur trioxide (SO). Monochloroparaffin process 10. In this video we discuss about the builder and additive and industrial process of formation of alkyl benzene sulphonate with flow diagram. Alkyl Benzene Sulfonate, Wt. It is used in anionic specialty formulations LAB is produced using normal paraffins as a raw material. The final decision will depend on various factors which might include the availability of raw material, location of the plant, the size of the plant, operation mode of the … The C n H 2n+1 chain is unbranched. The report can be used to bring about the following functionality: •Set up companies •Set up detergent raw material supply pct.
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