微反应器中十二烷基苯液相SO_3磺化过程

石油磺酸盐和重烷基苯磺酸盐是三次采油用重要阴离子表面活性剂,其主要成分是烷基苯磺酸盐。本研究以十二烷基苯(DDB)液相SO3磺化为模型反应,研究微反应器内的烷基苯磺酸合成反应过程特性,考察了液体流量、反应温度、磺化剂中SO3含量、反应通道长度、SO3与十二烷基苯物质的量比、微反应器结构、搅拌时间等参数的影响。结果表明,十二烷基苯磺化过程受传质控制,微反应器对反应初始阶段的强化作用明显,在SO3与十二烷基苯物质的量比为1.1时,采用微反应器与釜式反应器串联模式合成十二烷基苯磺酸,收率高达93.7%,为微反应器生产重烷基苯磺酸的路线提供了重要基础。     

多管膜式磺化技术在油田表活剂生产中的应用

重烷基苯磺酸盐是三元复合驱的主要活性剂,是利用石油化工装置的副产物重烷基苯作为主要原料进行深度加工的油田专用化学剂。它与聚合物复配,形成超低界面张力,提高驱油效果,提高采收率,增加原油产量,是一种比较现实的理想的油田驱油助剂。选用国内外最先进的膜式磺化技术,对组成比较复杂的重烷基苯原料可以有效地控制磺化产品的质量。大庆油田6万吨/年重烷基苯磺酸盐工程投产成功是多管膜式磺化技术在重烷基苯磺酸盐工业化生产的成功应用,在国内首次实现了油田用表面活性剂工业化生产。     

气液喷射式磺化反应器的应用研究

用喷射式磺化反应器分别对脂肪酸甲酯、烷基苯、重烷基苯、脂肪醇、脂肪醇聚氧乙烯醚和α 烯烃等原料进行了SO3气相磺化/硫酸化反应,研究了反应器主要结构参数对产品质量的影响,并与膜式反应器作了比较。结果表明:喷射磺化反应器制备的烷基苯磺酸、脂肪酸甲酯磺酸的产品质量与膜式磺化反应器相当,制备的重烷基苯磺酸盐产品质量稳定,降低原油/水界面张力的能力优于膜式磺化器制备的产品,但在磺化α 烯烃、硫酸化脂肪醇和脂肪醇聚氧乙烯醚时转化率低于90%,产品质量明显不及膜式反应器。从两种反应器的传质、传热机理及效率,不同有机原料的SO3磺化机理及反应速度等方面对以上现象进行了分析和讨论,认为喷射式磺化反应器适用于脂肪酸甲酯、烷基苯、重烷基苯的磺化,目前的结构参数不适用于α 烯烃、脂肪醇和脂肪醇聚氧乙烯醚的磺化/硫酸化反应,需要进一步调整,改善传质效率。     

三氧化硫磺化技术的最新进展

介绍近几年来大型磺化反应器和磺化装置的国产化及原有磺化装置的技术改造,α-烯基磺酸盐(AOS)部分取代烷基苯磺酸盐(LAS)及AOS生产技术,并概述了脂肪酸甲酯磺酸盐(MES)的产品开发、磺化产品的活性物干燥,以及其他磺化产品的开发等。分析了国内现有的磺化技术水平已与国际水平相近,建议尽可能利用国内技术实现磺化装置国产化和磺化新产品的开发。     

石油磺酸盐驱油剂合成工艺研究

石油磺酸盐驱油剂合成工艺的影响因素较多,从合成石油磺酸盐驱油剂的原料、反应器、磺化剂、操作方式以及复配体系四个方面阐述了石油磺酸盐驱油剂的合成工艺,并简要分析了各工艺的优缺点。提出了石油磺酸盐驱油剂合成工艺的研究方向,集中在磺化剂的选择以及研发新型合成反应器,此外可通过复配方法提高其性能。     

一种耐高温重烷基苯磺酸盐体系及其制备方法

<正>申请号:201610229535.5申请日:2016-04-14申请人:中国石油化工股份有限公司;南化集团研究院本发明涉及了一种耐高温重烷基苯磺酸盐体系及其制备方法分为以下两步:(1)在反应器中加入经切割后的重烷基苯及1,2-二氯乙烷,升温,开动搅拌,用气态SO_3进行磺化,磺酸老化0.5~1 h,氢氧化钠溶液中和,脱除溶剂,得到重烷基苯磺酸钠;(2)在反应器中加入重烷基苯磺酸盐、椰子油脂肪酸二乙醇酰胺、十二烷基甜菜碱,再加入水,升温搅拌0.5 h,既得耐高温重烷基苯磺酸盐体系。本发明的三次采     

国内三次采油用石油磺酸盐合成研究进展

石油磺酸盐是一类极其重要的驱油用表面活性剂。基于不同的磺化剂种类,综述了近年来国内三次采油用石油磺酸盐合成技术的研究进展以及国内石油磺酸盐的工业化生产情况。对未来石油磺酸盐合成的研究方向提出了展望。     

气相SO_3磺化制备石油磺酸盐的研究进展

石油磺酸盐是目前应用最多的一种三次采油用表面活性剂。本文综述了常用的磺化剂类型及其特点,分析了气相SO3制备石油磺酸盐的反应机理,介绍了气相SO3磺化所用反应器的性能及现状,并展望了石油磺酸盐的研究前景。     

重烷基苯磺酸盐的合成

研究了用ＳＯ３／干空气混合物磺化重烷基苯－十二烷基苯生产中的副产物,制取驱油用表面活性剂重烷基苯磺酸盐的降膜式连续磺化工艺。产品经提纯后分别用两相滴定法和降膜式连续磺化工艺,产品经提纯后分别用两相滴定法和ＥＳＩ质谱法测定了平均摩尔比,ＳＯ３平均气浓,反应温度等因素对磺化率有明显的影响;在优化反应条件下,视重烷基苯的馏程,磺化率分别可达７０％￣９０％,所得重烷基苯磺酸盐提纯物平均摩尔质量为３７０￣４     

三氧化硫磺化技术在国家科技攻关项目中的回顾和展望

介绍了国家科技攻关项目中有关三氧化硫磺化技术的情况,如多管膜式磺化反应器及磺化装置的国产化、计算机技术在三氧化硫磺化中的应用、AOS和MES的新产品开发和石油磺酸盐的研制及其在三次采油中的应用等。介绍了国家“七·五”攻关项目以来有关三氧化硫磺化技术及其发展情况。     

直链烷基苯在造纸工业中的应用

本文介绍了直链烷基苯及其磺酸盐作为阴离子表面活性剂在造纸工业蒸煮制浆和废纸脱墨等过程中的应用。     

直链重烷基苯磺酸盐的驱油能力研究

研究了所合成的各种结构的直链烷基苯磺酸盐单剂及其复配体系在不同碱质量分数情况下对大庆四厂油／水界面张力情况。结果表明；对同一碳链长度的直链烷基苯磺酸盐，带甲基的比带乙基、异丙基和苯环上不带取代基的烷基苯磺酸盐降低界面张力的能力强；同样结构的十六碳链长的烷基苯磺酸盐又较其他碳链长度的烷基苯磺酸盐效果更优；长、短碳链的带甲基的直链烷基苯磺酸盐按一定比例复配，协同效应显著；与支链烷基苯磺酸盐复配后，体系的驱油能力、抗稀释性和抗Ca^2 、Mg^2 能力明显增加。直链与支链按一定比例复配将是烷基苯磺酸盐作为驱油用主剂的发展方向。     

Synthesis and rigorous purification of sodium alkylbenzene sulfonates

The detergent properties of sodium alkylbenzene sulfonates frequently do not allow the use of conventional solvents and methods of organic chemistry for isolation and purification. The preparation of large quantities of highly purified linear and branched alkylbenzene sulfonates was achieved through purification of the corresponding methyl sulfonate ester obtained in one step by chlorosulfonation of the hydrocarbon and quenching the reaction mixture with methanol. Preparative HPLC of the methyl sulfonate ester and the use of special techniques in analytical HPLC provided highly purified sodium alkylbenzene sulfonates.     

Nonsolvent quantitation of anionic surfactants and inorganic ingredients in laundry detergent products

This paper reports the development of a method for measuring alkylbenzene sulfonates and alkyl sulfates (AS) without requiring the use of chlorinated organic solvents, such as chloroform. Alkylbenzene sulfonates and AS are precipitated with calcium and then isolated by filtration. Through this filtration process, they are separated from inorganic sulfur compounds. After the precipitate is prepared, the level of sulfur is measured by inductively coupled plasma atomic emission spectrometry (ICP-AES) to determine the total anionic surfactant level. Separately, AS are hydrolyzed in an autoclave, and the level of alkylbenzene sulfonates is then measured in the same manner. By using the autoclave, a safe and rapid hydrolysis step has been achieved. In addition to alkylbenzene sulfonates and AS, phosphate, silicate, sulfate, and zeolite can be determined with this sample preparation. This sample preparation procedure was investigated by ICP-AES and was confirmed applicable for simultaneous measurements of alkylbenzene sulfonates, AS, phosphate, silicate, sulfate, and zeolite without using organic solvents. Relative standard deviation for the analysis is less than 1.7%, recovery is more than 99.0%, and the calibration curve gives a correlation coefficient of R=1.000. The detection limit of this method for alkylbenzene sulfonates and AS is 0.6%, for zeolite, 0.04%, for phosphate, 0.4%, for silicate, 0.1%, and for sulfate, 0.2%, by weight in product. This method is applicable to various laundry detergent products that contain the materials mentioned above and is 10 times faster than the six wet chemical methods normally used to analyze these compounds.     

Effect of surfactant structure on stability of enzymes formulated into laundry liquids

The effect of surfactant structure on enzyme stability in heavy duty laundry liquids was investigated. Surfactants studied were alcohol ethoxylates and anionic surfactants having varying hydrophobic and hydrophilic types and chain lengths. Enzymes used were proteases and amylases. The results showed these enzymes were considerably more stable when formulated into laundry liquids containing alcohol ethoxylates and ethoxysulfates than when formulated with alcohol sulfates and surfactants containing sulfonate groups such as linear alkylbenzene sulfonates and alpha olefin sulfonates. Enzyme stabilizer systems were only partially effective in reducing the enzymedeactivating influence of sulfonate-containing surfactants. Presented at the AOCS meeting in Dallas, May, 1984.     

洗涤产品中阴离子和无机成份的非溶剂定量分析（英）

报道了在没有有机溶剂加氯仿的条件下,烷基苯磺酸盐和烷基磺酸盐（ＡＳ）测定方法的进展情况。烷基苯磺酸盐和ＡＳ与钙盐经沉淀,然后经过过滤分离。通过这个过程,它们和体系中的无机含硫化合物分离。被分离物中的硫含量通过电感耦合等离子体原子发射光谱（ＩＣＰ－ＡＥＳ）测定。这样可以测定总的阴离子表面活性剂的含量。ＡＳ通过高压水解,未水解的烷基苯磺酸盐用同样的方法测定。烷基苯磺酸盐、ＡＳ、磷酸盐、硅酸盐、硫酸盐和     

三次采油用表面活性剂的制备、应用及进展

主要介绍和概述了三次采油(EOR)用表面活性剂的制备、性能、应用特点及其最新进展。阴离子型表面活性剂在三次采油中应用最为普遍，它们主要包括石油磺酸盐、烷基苯磺酸盐、石油羧酸盐、木质素磺酸盐等，而其中以磺酸盐型最多。三次采油用表面活性剂的研究趋向主要是耐高含盐量、耐高温、吸附损失低、成本低等方面。     

Anionic surfactant biodegradability studies by Warburg respirometry

A series of alkylbenzene sulfonates and alkyl sulfates was prepared and examined for biodegradability by measuring the oxygen uptake when exposed to substrate adapted microorganisms in the Warburg respirometer. The Warburg results showed that certain linear alkylate alkylbenzene sulfonates and alcohol sulfates are oxidized completely to carbon dioxide and water. The use of radioactive carbon compounds confirmed the Warburg results.     

Über die Bildung von Nebenprodukten bei der technischen Synthese linearer Alkylbenzole

The Formation of By-products in the Technical Synthesis of Linear Alkylbenzenes N-paraffins from the molecular sieve method are mostly used as the raw material for the technical production of linear alkylbenzenes which are used for preparing biodegradable alkylbenzene sulfonates. The formation of considerable amounts of dichloroalkanes during the chlorination of these paraffins is unavoidable. From these dichloroalkanes, depending on the process of synthesis, different amounts of dialkyltetralins and dialkylindanes (DTI) are formed, which can not be separated from the alkylbenzenes because of the small difference in the boiling point, but can be determined quantitatively either by compensation-measurement method of IR-spectrography or by gas-chromatography. By measurement of critical micella concentration C_K and the foam formation of DTI-sulfonates in comparison with alkylbenzene sulfonates, it is shown that the DTI-formation can be taken as equivalent to the shortening of the alkylrest in alkylbenzene by 1 to 2 C-atoms.     

重烷基苯的应用及市场潜力分析

介绍了目前国内重烷基苯的资源，通过分析抚顺石化公司重烷基苯产品的应用现状，说明了重烷基苯产品利用的主要问题及潜在的目标市场，找出重烷基苯产品发展的目标。