摘要
基于甲醇作为催化裂化(FCC)部分进料的可行性分析,为研究甲醇加入对FCC过程的影响,考察了FCC条件下甲醇转化和烃裂化相互作用规律。采用小型固定流化床装置对不同甲醇比例与异辛烷共同进料的反应过程进行研究。试验结果表明:FCC条件下甲醇与异辛烷的相互作用降低了烃裂化产物中干气组分的选择性;提高了异丁烷和丁烯的选择性。随着甲醇加入比例的增加,汽油产物中高碳数组分(C7～C10)的选择性增加,而且芳烃选择性显著增加。论述了FCC条件下甲醇转化和异辛烷裂化的相互作用规律。
The interaction of methanol conversion and hydrocarbon cracking reaction under FCC conditions was investigated by feasibility analysis of feeding methanol as part of FCC feedstock, and impact of methanol addition on FCC reaction was studied. Experiments were carried out on a laboratory fixed-fluidized-bed reactor with different percentages of methanol and isooctane in the feed. The results showed that the interaction of methanol and i-octane had reduced the selectivities of dry gas and improved the selectivities of i-butane and butylene. The selectivities of C7～C10 hydrocarbons and the aromatics increased remarkably with the increasing methanol proportion. The mechanism of the interaction of methanol and i-octane under FCC conditions are described, which provides a good basis for further subsequent research work.
出处
《炼油技术与工程》
CAS
北大核心
2007年第1期1-5,共5页
Petroleum Refinery Engineering
基金
国家自然科学基金资助项目(20343004)。
关键词
催化裂化
甲醇
异辛烷
相互作用
低碳烯烃
catalytic cracking, methanol, i-octane, interaction, lieht olefins
