摘要
采用小型固定流化床装置考察了反应温度、空速、剂油比和预热温度等工艺参数对干气产率和体积组成的影响,并从反应机理角度进行了分析。结果表明,降低反应温度、提高空速、降低剂油比和适当提高原料油预热温度等措施有利于降低干气产率,其中反应温度对干气产率、体积组成影响较大。当反应温度从370℃提高到620℃时,干气产率从0.26%增加至7.54%,氢气含量从76.50%降低至39.65%;其它工艺参数,如剂油比、空速、预热温度等对干气体积组成的影响相对较小。
The effects of space velocity（WHSV）,catalyst to operating parameters, such as reaction temperature, weight hourly oil ratio and feed preheated temperature on the yield and composition of dry gas were investigated using a laboratory fixed fluidized bed reactor. The reaction mechanism was discussed. Test results indicated that low reaction temperature,high WHSV,low catalyst to oil ratio and high preheating temperature were in favor of decreasing the dry gas yield. Among these four parameters, reaction temperature had more influence on the yield and composition of dry gas, for instance, when the reaction temperature was increased from 370 ℃ to 620 ℃, the dry gas yield increased from 0.26 % to 7.54% ,and the hydrogen volume content in dry gas dropped from 76.50% to 39.65%.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2007年第4期34-37,共4页
Petroleum Processing and Petrochemicals
关键词
催化裂化
干气
操作条件
收率
组成
catalytic cracking
dry gas
operating condition
yield
composition
