石蜡裂解制α-烯烃工艺技术研究  

Study on technology for alpha olefins making from paraffin cracking

作　　者：陈新德[1] 颜涌捷[1] 

机构地区：[1]华东理工大学资源环境工程系

出　　处：《现代化工》2007年第7期54-57,共4页Modern Chemical Industry

摘　　要：采用优质的54#半精炼石蜡,将乙烯裂解二次注汽技术融合在石蜡裂解技术中,避免了裂解炉结焦;考察了单程裂解、炉前甩残蜡循环裂解、炉后甩残蜡循环裂解在相同的工艺条件下的产品质量、产品收率及存在的问题;验证了新的炉后甩残蜡循环裂解是较好的工艺路线,在较高的水蜡比15%(质量分数),高温600℃、低烃分压和短停留时间(2s左右)条件下,能生产出高质量的α-烯烃产品(总烯烃质量分数在97%以上,α-烯烃含量为88%)。With 54^# half-refined paraffin as raw material,the technology of the second injecting steam of ethane cracking is used for reference in the paraffin cracking process which avoides the coke produced in cracking furnace. The quality and the yield of product and problems are analyzed in different processes under the same conditions, the processes include one-way cracking, circling cracking for removing remnant paraffin around the furnace. It was proved that the new technology of circling cracking for removing remnant paraffin after furnace is the best process, by which the product of high quality with more than 97 wt% of total olefins and more than 88wt% of alpha olefins could be obtained with the new technology, which under the conditions including： 15 wt% of the ratio of water to paraffin, high temperature of 600℃, low partial pressure of hydrocarbon, and short staying time of 2 seconds.

关 键 词：Α-烯烃 石蜡裂解 半精炼石蜡 乙烯裂解 

分 类 号：TQ223.127[化学工程—有机化工]