无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2019, Vol. 51 ›› Issue (8): 79-82.doi: 10.11962/1006-4990.2018-0467

• 催化材料 • 上一篇    下一篇

多孔材料烷烃/烯烃分离技术的研究

赵闯,李犇,范景新,臧甲忠,马浴铭,李滨,孙振海,宫毓鹏,于海斌   

  1. 中海油天津化工研究设计院有限公司,催化技术重点实验室,天津 300131
  • 收稿日期:2019-02-10 出版日期:2019-08-10 发布日期:2020-06-15
  • 作者简介:赵闯(1989— ),男,硕士,工程师,主要从事无机盐材料的研究;E-mail:zc731364717@163.com。

Study on alkanes/olefin separation technology of porous material

Zhao Chuang,Li Ben,Fan Jingxin,Zang Jiazhong,Ma Yuming,Li Bin,Sun Zhenhai,Gong Yupeng,Yu Haibin   

  1. Key Laboratory of Catalysis Technology,CenerTech Tianjin Chemical Research & Design Institute Co.,Ltd.,Tianjin,300131,China
  • Received:2019-02-10 Published:2019-08-10 Online:2020-06-15

摘要:

以模拟油品为原料,在小型固定床(200 mL)反应器上考察了硅胶、γ-Al2O3、13X分子筛、Y分子筛及ZSM-5分子筛等多孔材料对烷烃/烯烃的吸附分离性能;其中硅胶的烷烃/烯烃分离效果最好,在吸附温度为40 ℃、压力为0.5 MPa、解吸剂为正辛烷/甲基环己烷的条件下,烷烃/烯烃分离度最高达到0.81;与其他类型硅胶相比,平均孔径为4~6 nm的B型硅胶传质效果更好,吸附-脱附过程更易趋于平衡。经过焙烧和溶剂再生的吸附剂,与新鲜剂相比,分离效果没有明显的降低。

关键词: 多孔材料, 硅胶, 烷烃/烯烃分离度, 传质效果

Abstract:

The adsorption and separation properties of porous materials such as silica gel,γ-Al2O3,13X molecular sieve,Y molecular sieve and ZSM-5 molecular sieve on alkane/olefin were investigated on a small fixed bed(200 mL) reactor using simulated oil as raw material.The alkane/olefin separation effect of silica gel was the best.Under the conditions of adsorption temperature of 40 ℃,pressure of 0.5 MPa and desorbent of n-octane/methylcyclohexane,the alkane/olefin separation degree was up to 0.81.Compared with other types of silica gel,type B silica gel with an average pore diameter of 4~6 nm had better mass transfer effect,and the adsorption-desorption process turned to be more balanced.The regenerated adsorbents by roasting and solvent,compared with fresh agent,the separation effect did not decreased obviously.

Key words: porous material, silica gel, separation degree of alkanes/olefin, mass transfer effect

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