426768 Key Technologies to Produce Bio-Ethylene and Vam

Wednesday, November 11, 2015: 10:10 AM
Salon J (Salt Lake Marriott Downtown at City Creek)
Minhua Zhang1,2,3, Xiuqin Dong1,2,3, Yonghui Li1,2,3, Yingzhe Yu1,2,3, Jing Ma1,2,3 and Zhongfeng Geng1,2,3, (1)Key Laboratory of Ministry of Education for Green Chemical Technology, Tianjin, China, (2)Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, China, (3)R & D Center for Petrochemical Technology, Tianjin University, Tianjin, China

Bio-manufacture is expected as a solution to deal with challenges decreasing of petroleum resources and increasing environmental protection. A packaged industrial technology to produce bio-Ethylene and Vinyl Acetate Monomer (VAM) from bio-ethanol has been developed by Tianjin University. A 100,000 MTA VAM plant was built using this technology in 2012, which is the first VAM industrial plant in China.  

This process comprises of sections of dehydration of bio-ethanol to produce bio-ethylene and acetoxylation of bio-ethylene to produce VAM. In this advanced process, a series of innovations have been made including a high efficiency process with adiabatic bed reactor was invented for ethanol dehydration to ethylene; the deactivation mechanism of the catalyst by CO was established via the DFT calculations, based on which a low energy consuming process for VAM production with high CO tolerance was developed; a dedicated database for VAM production was  set up based on the combination of quantum mechanics and GEMC method; the Mechanical Vapour Recompressor (MVR) technology was adopted to recover the low-rank reaction heat in the start-up period; a high efficiency VAM reactor was designed via the investigation of hydrodynamics properties of both single-phase and multiphase flow with the assistance of computational fluid dynamics.


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See more of this Session: Process Improvement and Innovation Via Intensification
See more of this Group/Topical: Process Development Division