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Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether
Li, Yu-ping1; Tu, Jun-ling1,2; Wang, Tie-jun1; Ma, Long-long1; Zhang, Xing-hua1; Zhang, Qing1; Cai, Chi-liu1
2014-04-01
发表期刊CHINESE JOURNAL OF CHEMICAL PHYSICS
卷号27期号:2页码:227-232
摘要NiSAPO-34 and NiSAPO-34/HZSM-5 were prepared and evaluated for the performance of dimethyl ether (DME) conversion to light olefins (DTO). The processes of two-stage light olefin production, DME synthesis and the following DTO, were also investigated using biosyngas as feed gas over Cu/Zn/Al/HZSM-5 and the optimized 2%NiSAPO-34/HZSM-5. The results indicated that adding 2%Ni to SAPO-34 did not change its topology structure, but resulted in the forming of the moderately strong acidity with decreasing acid amounts, which slightly enhanced DME conversion activity and C-2=-C-3= selectivity. Mechanically mixing 2%NiSAPO-34 with HZSM-5 at the weight ratio of 3.0 further prolonged DME conversion activity to be more than 3 h, which was due to the stable acid sites from HZSM-5. The highest selectivity to light olefins of 90.8% was achieved at 2 h time on stream. The application of the optimized 2%NiSAPO-34/HZSM-5 in the second-stage reactor for DTO reaction showed that the catalytic activity was steady for more than 5 h and light olefin yield was as high as 84.6 g/m(syngas)(3) when the biosyngas (H-2/CO/CO2/N-2/CH4=41.5/26.9/14.2/14.6/2.89, vol%) with low H/C ratio of 1.0 was used as feed gas.
文章类型Article
关键词Light Olefins Two-stage Conversion Dimethyl Ether Biosyngas Nisapo-34/hzsm-5
WOS标题词Science & Technology ; Physical Sciences
DOI10.1063/1674-0068/27/02/227-232
研究领域[WOS]Physics
关键词[WOS]METHANOL CONVERSION ; IN-SITU ; MTO PROCESS ; SAPO-34 ; DEACTIVATION ; SPECTROSCOPY ; CRYSTALS ; ZSM-5 ; SIZE
收录类别SCI
语种英语
WOS类目Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000335878400015
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10728
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Li, Yu-ping,Tu, Jun-ling,Wang, Tie-jun,et al. Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2014,27(2):227-232.
APA Li, Yu-ping.,Tu, Jun-ling.,Wang, Tie-jun.,Ma, Long-long.,Zhang, Xing-hua.,...&Cai, Chi-liu.(2014).Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether.CHINESE JOURNAL OF CHEMICAL PHYSICS,27(2),227-232.
MLA Li, Yu-ping,et al."Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether".CHINESE JOURNAL OF CHEMICAL PHYSICS 27.2(2014):227-232.
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