沈北/大庆减压渣油生产微晶蜡工艺研究(Ⅲ)——近临界丙烷脱沥青-溶剂脱蜡脱油生产微晶蜡  

STUDY ON MICROCRYSTALLINE WAX PRODUCTION FROM SHENBEI-DAQING VACUUM RESIDUE (Ⅲ)——NEAR-CRITICAL PROPANE DEASPHALTING,SOLVENT DEWAXING AND DEOILING FOR MICROCRYSTALLINE WAX PRODUCTION

作　　者：刘荣江[1,2] 许志明[1] 赵锁奇[1] 杜晓敏[2] 

机构地区：[1]中国石油大学重质油国家重点实验室,北京市102249 [2]中国石油抚顺石化公司,辽宁省抚顺市113008

出　　处：《炼油技术与工程》2008年第10期10-13,共4页Petroleum Refinery Engineering

摘　　要：以沈北/大庆减压渣油为原料,进行了近临界丙烷脱沥青结合酮苯脱蜡脱油制备微晶蜡的小试和中试研究。在近临界条件下,减压渣油经丙烷脱沥青,所得轻脱沥青油收率为30%左右,残炭1.0%,胶质质量分数4.0%,轻脱沥青油是生产高滴熔点微晶蜡的良好原料。轻脱沥青油经酮苯一段脱蜡、两段脱油或三段脱油可得粗微晶蜡,白土精制得微晶蜡产品。控制不同的脱油温度条件,可生产滴熔点不同的微晶蜡,分别满足80～90号微晶蜡规格要求。The laboratory and pilot plant tests of near-critical propane deasphahing combined with ketone- benzol dewaxing and deoiling were performed to produce microcrystalline wax from Shenbei-Daqing vacuum residue.Under the near-critical condition of propane,the light deasphalted oil (LDAO) with 1.0% carbon residue and 4.0% gum was obtained.The LDAO with a yield of about 30% of the vacuum residue is a good feedstock to produce high melting-point microcrystalline wax.Through ketone-benzol one-stage dewaxing and two...

关 键 词：近临界丙烷脱沥青 溶剂脱蜡脱油 微晶蜡 

分 类 号：TE626.88[石油与天然气工程—油气加工工程]