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Treating Methanol‐to‐Olefin Quench Water by Minihydrocyclone Clarification and Steam Stripper Purification
Author(s) -
Yang Qiang,
Lv Wenjie,
Shi Lei,
Wang Hualin
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400429
Subject(s) - naphtha , olefin fiber , stripping (fiber) , methanol , steam reforming , waste management , cracking , catalysis , fluid catalytic cracking , ethylene , chemical industry , water cooling , chemical engineering , materials science , chemistry , process engineering , organic chemistry , engineering , composite material , mechanical engineering , hydrogen production
In the chemical industry, methanol‐to‐olefin (MTO) technology is a novel process for producing ethylene and propylene from naphtha thermal cracking. The process of recovering MTO quench water by minihydrocyclone and steam stripping treatment was successfully applied in industrial plants. The fine catalyst in the quench water is removed by the two‐stage minihydrocyclone separation. The method and equipment for this system present various advantages: the quench water can be recycled in the cooling system and prevents heat loss in heat transfer systems; and the stripping tower can be blocked by the catalyst. Maintenance activities are reduced and a stable operation cycle is extended. The proposed treatment process improves the economic efficiency of the MTO device.