扩散制冷型低温液氮洗涤塔技术  

Cryogenic LN_2 Scrubber with Diffusion Refrigeration

作　　者：郭舜之[1] 张周卫[1,2] 赵丽 李河[1] GUO Shun-zhi;ZHANG Zhou-wei;ZHAO Li;LI He(School of Environmental and Municipal Engineering, Lanzhou Jiaotong University;Gansu Zhongyuan Energy and Power Engineering Co. , Ltd.)

机构地区：[1]兰州交通大学环境与市政工程学院 [2]甘肃中远能源动力工程有限公司

出　　处：《化工机械》2018年第1期68-70,81,共4页Chemical Engineering & Machinery

基　　金：甘肃省自然科学基金项目(1208RJZA234);甘肃省财政厅基本科研业务费项目(214137);甘肃省教育厅硕导项目(1104-01)

摘　　要：根据5.6MPa、-188.2℃低温液氮扩散制冷原理和低温液氮节流制冷工艺技术特点,提出了一种扩散制冷型低温液氮洗涤塔技术,采用N_2、H_2两种气体扩散制冷的方式为系统提供冷量,实现低温液氮洗涤工艺技术过程,从而脱除H_2中的杂质气体N_2、CO、Ar、CH_4、CO_2、H_2O及CH_3OH等,为合成气提供清洁的H_2。According to working principle of cryogenic LN2（5. 6 MPa,-188. 2℃） with diffusion refrigeration and its characteristics with throttling refrigeration,a new type of scrubber technology which adopting cryogenic LN2 with diffusion refrigeration was proposed and it has N2 and H2 gas diffusion refrigeration adopted to provide cooling capacity and to realize washing process with cryogenic LN2 refrigeration so that N2,CO,Ar,CH4,CO2,H2O and CH3OH gases can be separated from H2 and the clean H2 can be provided for syngas.

关 键 词：洗涤塔 扩散制冷 吸收净化 低温液氮 

分 类 号：TQ053.5[化学工程]