摘要
为加工高钒含量的渣油原料，研究开发了抗钒催化裂化催化剂。试验表明，沉积在催化剂上的氧化铈抗钒能力较强，能有效地保护分子筛结构不受钒破坏。选用ＳＲＹ和ＲＰＳＡ两种分子筛作为活性组元，使用大孔氧化铝作为粘接剂，制备出催化剂ＣＨＶ－１。工业应用试验结果表明，在原料钒含量和残炭相当或稍高的条件下，ＣＨＶ－１催化剂与原国产催化剂比较，油浆产率下降３．８５个百分点，焦炭产率下降０．２３个百分点，轻质油收率增加３．１７个百分点，液化气收率增加０．２５个百分点，催化剂单耗下降０．４ｋｇ／ｔ，汽油辛烷值（ＲＯＮ）增加１．８个单位。
A FCC catalyst, CHV1, with high vanadium tolerance was developed for processing high vanadium content resid feedstock. The basic research indicated that cerium oxide deposited on the surface of the Y zeolite could react with vanadium to avoid destruction of the zeolite structure by vanadium. CHV1 was formulated with SRY and RPSA zeolites as active components and mesopore alumina as matrix. The commercial results indicated that CHV1 in comparison with the original catalyst for processing high CCR and vanadium content feedstock, CHV1 decreased coke and slurry yields by 0.23 wt% and 3.58 wt% respectively; increased LPG plus naphtha plus LCO yield by 3.42 wt% and naphtha RON by 1.8; and the catalyst makeup rate lessened by 0.4 kg/t.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
1999年第5期5-9,共5页
Petroleum Processing and Petrochemicals
关键词
流化催化裂化
裂化催化剂
催化剂中毒
CHV-1
fluid catalytic cracking, cracking catalyst, vanadium, nickel, catalyst poison
