酸性助剂对催化剂及RFCC原料油裂化性能影响的研究  

Influence of acidic additives on cracking performance of RFCC catalyst and feed oil

作　　者：孙学文[1] 刘彦辉 樊桂臣 高玉青[3] 

机构地区：[1]石油大学(北京)重质油加工国家重点实验室,北京102249 [2]大庆炼化公司,黑龙江大庆163511 [3]大庆石油学院石油化工系,黑龙江安达151400

出　　处：《工业催化》2002年第2期59-64,共6页Industrial Catalysis

摘　　要：本文考察了酸性助剂对催化剂及RFCC裂化原料裂化性能、汽油和柴油主要性质的影响。试验结果表明 ,RFCC原料加入适量的酸性助剂后 ,催化剂微反活性提高 3～ 4个单位 ,轻质油收率提高 3%～ 4 % (wt) ,产品分布得到改善 ,所加入的酸性助剂不会进入产品中。酸性助剂用量最佳值在 0 .2 5 %～ 0 .35 % (wt)间 ,其用量与所处理的原料和使用的催化剂有关。同时发现 ,酸性助剂不仅适用于国产催化剂 ,也适用于进口催化剂 。In order to counteract against the decline in activity, selectivity of RFCC catalyst and yield of light oil caused by existence of basic nitrogen compounds, Acidic additive is added to residue feedstock. simulating the condition of commercial,Comparison tests were made on a small catalytic cracking unit to investigate the effects of acidic additives on cracking performance of RFCC catalyst and residue feedstock as well as properties of the gasoline and diesel products. Results from the tests showed that incorporation of appropriate amount of the acidic additive into residue feedstock can enhance micro-reactor activity of the catalysts by 3～4 units,the yield of light oil by 3%～4%(wt),and improve product distribution. The acidic additive will not come into final products. The optimum amount of the acid additive was 0 25%～0 35%(wt),depending on feedstock and catalyst.

关 键 词：原料油 性能 重油 流化催化裂化 酸性助剂 碱性氮化物 催化剂活性 轻质油收率 

分 类 号：TE624.41[石油与天然气工程—油气加工工程] TE624.91