固定床渣油加氢与MIP或DCC组合工艺对比研究  

COMPARATIVE STUDY ON COMBINED PROCESSES OF FIXED BED RESIDUE HYDROTREATING WITH MIP OR DCC

作　　者：邵志才 魏晓丽 戴立顺 Shao Zhicai;Wei Xiaoli;Dai Lishun(SINOPEC Research Institute of Petroleum Processing,Co.,Ltd.,Beijing 100083)

机构地区：[1]中石化石油化工科学研究院有限公司,北京100083

出　　处：《石油炼制与化工》2024年第7期15-21,共7页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(117001-3)。

摘　　要：利用催化裂化油浆和重循环油(HCO)质量比为3∶1的混合原料A,在体积空速为0.30h^(-1)、氢分压为3.0MPa、氢油体积比为100、温度为360℃的条件下,开展固定床加氢试验,得到收率为99.78%的加氢重馏分油;利用中东渣油(MM)和混合原料B(A加氢重馏分油与MM的质量比为7.98∶100)、保持MM空速不变,分别开展4项不同深度的固定床加氢试验,得到4种加氢常压渣油;进而利用4种加氢常压渣油分别开展MIP和DCC试验。结果表明:以100%MM进料计,采用渣油加氢回炼油浆与MIP组合工艺试验时,加氢较浅和加氢较深产物的轻质油品(汽油+柴油)产率分别较非组合工艺试验增加2.20百分点和2.52百分点;采用渣油加氢回炼油浆与DCC组合工艺试验时,较深加氢产物丙烯产率较非组合工艺降低1.22百分点。Under the conditions of liquid hour space velocity(LHSV)of 0.30 h^(-1),hydrogen partial pressure of 3.0 MPa,hydrogen-oil volume ratio of 100 and temperature of 360 C,a mixed feedstock A with mass ratio of FCC slurry to heavy cycle oil(HCO)of 3:1 was used,and a fixed-bed hydrogenation experiment was carried out to obtain the hydrogenated heavy fraction with a yield of 99.78%.Four fixed bed hydrotreating experiments were carried out with Middle East residua(MM)and mixed feedstock B(heavy distillate of hydrotreated A:MM=7.98:100 by mass ratio)at different depths with constant space velocity of MM,four kinds of hydrotreated residue were obtained,and then MIP and DCC experiments were carried out with four kinds of hydrotreated residue,respectively.The results showed that when residue hydrotreating was combined with MIP,the yield of light oil(gasoline+diesel)increased by 2.20 percentage points compared with that of non-combined process using the slightly hydrotreated residue based on 100%MM feed,and the yield of light oil(gasoline+diesel)increased by 2.52 percentage points compared with that of non-combined process using the deep-hydrotreated residue.When residue hydrotreating was combined with DCC,the yield of propylene was 1.22 percentage points lower than that of non-combined process.

关 键 词：催化裂化油浆 固定床渣油加氢 MIP工艺 DCC工艺 组合工艺 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]