摘要
在小型固定流化床反应器装置上进行催化裂化降低干气和焦炭实验研究。结果表明,在较低的转化率条件下,采用提高反应温度的方法来提高转化率较适宜;在较高的转化率条件下,采用增加剂油比的方法来提高转化率较适宜。中型实验结果验证了小型实验结果,当再生催化剂温度由720℃降低到610℃,剂油质量比由5.0增加到5.5时,在相同转化率条件下,干气产率下降16.20%,焦炭产率下降16.81%。开发降低干气和焦炭产率的MIP工艺技术的关键在于降低再生催化剂的温度以及控制合理的再生催化剂的温度和剂油比。
Investigation of reducing dry gas and coke yields in catalytic cracking process was carried out at a fixed fluidized bed unit in laboratory.The test results showed that the appropriate ways to increase conversion at relatively low conversion and high conversion were increase reaction temperature and increase cat/oil ratio.respectively,The above results were va lidated by the pilot plant test data.At similar conversions,when the temperature of regenerated catalyst decreased from 720 ℃ to 610 ℃ and the cat/oil ratio increased from 5.0 to 5. 5, the reductions of dry gas and coke yields were 16.20% and 16.81% ,respectively. Thus,the key point to develop new MIP process for reducing dry gas and coke yields is to decrease the regenerated catalyst temperature,and to proper adjust the regenerated catalyst temperature and the cat/oil ratio.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2007年第10期7-11,共5页
Petroleum Processing and Petrochemicals
基金
国家重点基础研究发展计划(973计划
2006CB202500)
关键词
催化裂化催化剂
干气焦炭
catalytic cracking
catalyst
dry gas
coke
