环丁砜抽提蒸馏-液液抽提组合工艺的工业应用  

COMMERCIAL APPLICATION OF A COMBINED PROCESS OF EXTRACTIVE DISTILLATION AND LIQUID-LIQUID EXTRACTION USING SULFOLANE

作　　者：王净依[1] 田龙胜[2] 唐文成[2] 桂寿喜[2] 

机构地区：[1]扬子石油化工股份有限公司芳烃厂,南京210048 [2]石油化工科学研究院

出　　处：《石油炼制与化工》2002年第6期19-22,共4页Petroleum Processing and Petrochemicals

摘　　要：环丁砜抽提蒸馏-液液抽提组合工艺在扬子石油化工股份有限公司芳烃厂360kt/a芳烃抽提装置改扩建中的工业应用结果表明,所生产的产品,苯结晶点达5.48℃,硫含量小于0.5μg/g;甲苯中非芳烃含量小于1000μg/g。苯、甲苯收率分别达到99.9％和99.1％。与采用传统的液液抽提法改造相比,不仅节省投资1500万元,而且能耗降低15％～24％。The combination process of extractive distillation and liquid-liquid extraction using sulfolane was used in the revamping aromatics extraction unit with a capacity of 360kt/a in the Aromatics Plant of Yangzi Petro-chemical Company. The operating result showed that the freezing point of benzene was 5.48℃, the sulfur content in benzene was less than 0.5μg/g; and the non-aromatics content in toluene was less than 1000μg/g. The recovery effi-ciency of benzene and toluene was 99.9％ and 99.1％ respectively. Compared with the modification of traditional liq-uid-liquid extraction method, the investment could be reduced 15 million yuan, and the energy consumption decreased by 15％-24％.

关 键 词：环丁砜 抽提蒸馏-液液抽提 组织工艺 工业应用 芳烃 工业规模 

分 类 号：TQ221.21[化学工程—有机化工]