高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (7): 1159.

• 论文 • 上一篇    下一篇

一氧化碳高效吸附剂CuCl/分子筛

谢有畅, 张佳平, 童显忠, 潘晓民, 傅晋平, 蔡小海, 杨戈, 唐有祺   

  1. 北京大学化学与分子工程学院, 物理化学研究所, 北京 100871
  • 收稿日期:1997-02-09 出版日期:1997-07-24 发布日期:1997-07-24
  • 通讯作者: 谢有畅, 男, 58岁, 教授, 博士导师.
  • 作者简介:谢有畅, 男, 58岁, 教授, 博士导师.

High Efficiency CO Adsorbent CuCl/Zeolite

XIE You-Chang, ZHANG Jia-Ping, TONG Xian-Zhong, PAN Xiao-Min, FU Jin-Ping, CAI Xiao-Hai, YANG Ge, TANG You-Qi   

  1. Institute of Chemistry and Molecular Engineering, Institute Of Physical Chemistry, Peking University, Beijing 100871
  • Received:1997-02-09 Online:1997-07-24 Published:1997-07-24

摘要: 利用自发单层分散原理,将CuCl分散在载体表面制备高效的CO吸附剂,将CUCl与r-Al2O3、4A、13X、NaY、CuY分子筛等高比表面载体混合,在350℃焙烧数小时XRD和EXAFS研究证明CuCI可在载体表面达到原子水平的分散,由于CU+可与CO生成配位键,由此可制得对CO有高吸附容量和选择性的吸附剂. 其中CuCI/NaY和CuCI/Cu+Y吸附剂的吸附容量在20℃、CO分压为6OkPa时,分别可高达90mL/g载体和100mL/g载体. 经配方优化加粘合剂成型工业放大后的吸附剂PU-1已成功地用于工业上变压吸附分离CO,纯度大于99%,收率大于85%;用于从N2或H2中清除作为杂质存在的CO,可使CO的浓度小于1×10-6mol/L,空速可大于5000h-1.

关键词: 吸附剂, CO, 吸附分离, 单层分散, 铜分子筛

Abstract: Based on the principle that compounds can spontaneously disperse to the surfaceof supports to form a monolayer, heating supports of high surface area such as γ-Al2O3, 4A,13X, NaYand CuYzeolites etc.with CuCl adsorbents with CuCl highly dispersed on thesurface of the supports can e btained.XRDand EXAFSexperiments have shown that theCuCl is in atomic scale dispersion.The best adsorbents CuCl/NaYand CuCl/CuYcan haveCOcapacity of 90 mL/g support and 100 mL/g support respectively at 20℃ and COpartialpressure of 60 kPa.A CuCl/zeolite adsorbent PU-1 whcih has optimization recipe and suit-able binder has been made in commercial scale.The adsorbent has been used in a PSApro-cess successfully to separate COfrom gas mixtures of CO, H2,N2, CH4 and CO2. The COproduct has a purity >99% with yield>85%.It has also been used to remove trace COinH2 or N2 at >5000 h.The purified gases have CO <1 X 10-6 mol/L.

Key words: Adsorbent, CO, Adsorptive separation, Monolayer dispersion, Copper zeolite

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