摘要
甲基叔丁基醚(MTBE)作为重要的高辛烷值清洁汽油调合组分,如何对其进行深度脱硫使硫质量分数低于10μg/g,以满足日益严格的车用汽油标准,是目前石化企业亟待解决的难题之一。对MTBE中硫含量偏高的原因进行了分析。传统两步脱硫精制工艺中存在的不足使得原料混合C4中硫含量偏高以及MTBE生产中对硫化物的富集是MTBE产品硫含量偏高的主要原因。综述了MTBE直接脱硫精制的方法和效果,特别是蒸馏法、萃取-精馏法、催化氧化-精馏法和吸附法的原理和发展现状,并对MTBE深度脱硫技术存在问题与发展前景做出展望。
Methyl t-butyl ether（MTBE） is an important tion of clean gasoline. Therefore, it is urgent for petroleum than 10 mg/kg by deep desulfurization to meet increasingly high-octane blending component for the producrefining industry to reduce sulfur in MTBE to less stringent standards for motor gasoline. The causes for high sulfur in MTBE were analyzed. The main causes for the high sulfur in MTBE were the higher sulfur content in feed mixed C4s due to limitations of the conventional two-stage desulfurization process and the enrichment of sulfur in feed mixed C4 s during the production of MTBE. Methods and results of current deep desulfurization treatment for MTBE were reviewed. Specifically, the principles and current developments of distillation, extraction-distillation, catalytic oxidation-distillation and adsorption were introduced. Additionally, the problems and prospect of deep desulfurization technology for MTBE were predicted.
出处
《炼油技术与工程》
CAS
2014年第5期1-6,共6页
Petroleum Refinery Engineering
基金
中国石油天然气股份有限公司科学研究与技术开发项目(2011B-2304-0303)
关键词
MTBE
深度脱硫
蒸馏
吸附
萃取
MTBE, deep desulfurization, distillation, adsorption, extraction
