Title: Method for recovering aromatic hydrocarbon in tail gas of oxydol production apparatus
Application Number: 02135489 Application Date: 2002.09.20
Publication Number: 1483503 Publication Date: 2004.03.24
Approval Pub. Date: Granted Pub. Date: 2005.05.11
International Classifi-cation: B01D53/04,B01J20/20,B01J20/32,C01B15/022
Applicant(s) Name: Qilu Petrochemical Co., Ltd. SINPOEC Address: 255408
Inventor(s) Name: Zhou Hongjun, Guo Yufeng
Attorney & Agent:
Abstract:
     The method for purifying and recovering aromatic hydrocarbon in the tail gas of oxydol production equipment adopts the pretreated active carbon catalyst as adsorption agent to remove aromatic hydrocarbon and recover and reuse it. Its adsorption condition is as follows: tail gas pressure is 0.2-2 MPa, temp. is 0-40 deg.C, space velocity is 100-2000 h(-1), and the inlet aromatic hydrocarbon content is less han or equal to 1000 ppm generally; then it uses the superheated stream or N2 to heat at 120 deg.C-400 deg.C to make desorption, and make cooling treatment so as to recover aromatic hydrocarbon.
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