CAJ | 학술논문

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。
석유광산염화중완기분광산염시삼차채유용중요음리자표면활성제，기주요성분시완기분광산염。본연구이십이완기분（DDB）액상SO3광화위모형반응，연구미반응기내적완기분광산합성반응과정특성，고찰료액체류량、반응온도、광화제중 SO3함량、반응통도장도、SO3여십이완기분물질적량비、미반응기결구、교반시간등삼수적영향。결과표명，십이완기분광화과정수전질공제，미반응기대반응초시계단적강화작용명현，재SO3여십이완기분물질적량비위1.1시，채용미반응기여부식반응기천련모식합성십이완기분광산，수솔고체93.7%，위미반응기생산중완기분광산적로선제공료중요기출。
Petroleum sulfonates and heavy alkyl benzene sulfonates are important anionic surfactants used in tertiary oil recovery and the active components are alkyl benzene sulfonates. In this work, dodecylbenzene (DDB) sulfonation with liquid SO3 inmicroreactors was used as a model reaction and its reaction performance was studied in a microreactor. The effects of some important parameters on the yield of dodecylbenzene sulfonic acid are investigated, including liquid flow rate, reaction temperature, mass fraction of SO3, length of microchannel, molar ratio of SO3 to dodecylbenzene, reactor types and stirring time. The results showed that the sulfonation of dodecylbenzene is controlled by mass transfer and the initial period of sulfonation can be significantly intensified in the microreactor. With a combination of a microreactor and a tank reactor, the yield of dodecylbenzene sulfonic acid can reach 93.7% under the condition of molar ratio of SO3 to dodecylbenzene 1.1:1.