Yu-ping Li, Jun-ling Tu, Tie-jun Wang, Long-long Ma, Xing-hua Zhang, Qing Zhang, Chi-liu Cai. 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. doi: 10.1063/1674-0068/27/02/227-232
Citation: Yu-ping Li, Jun-ling Tu, Tie-jun Wang, Long-long Ma, Xing-hua Zhang, Qing Zhang, Chi-liu Cai. 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. doi: 10.1063/1674-0068/27/02/227-232

Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether

doi: 10.1063/1674-0068/27/02/227-232
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.51006110, No.51276183, and No.51036006), the National Natural Research Foundation of China/Japan Science and Technology Agency (No.51161140331), and National Key Basic Re-sea
  • Received Date: 2013-10-16
  • 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 C2=-C3= selectiv-ity. 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/m3syngas when the biosyngas (H2/CO/CO2/N2/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.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(1405) PDF downloads(1319) Cited by()

Proportional views
Related

Production of Light Olefins from Biosyngas by Two-stage Catalytic Conversion Process via Dimethyl Ether

doi: 10.1063/1674-0068/27/02/227-232
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.51006110, No.51276183, and No.51036006), the National Natural Research Foundation of China/Japan Science and Technology Agency (No.51161140331), and National Key Basic Re-sea

Abstract: 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 C2=-C3= selectiv-ity. 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/m3syngas when the biosyngas (H2/CO/CO2/N2/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.

Yu-ping Li, Jun-ling Tu, Tie-jun Wang, Long-long Ma, Xing-hua Zhang, Qing Zhang, Chi-liu Cai. 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. doi: 10.1063/1674-0068/27/02/227-232
Citation: Yu-ping Li, Jun-ling Tu, Tie-jun Wang, Long-long Ma, Xing-hua Zhang, Qing Zhang, Chi-liu Cai. 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. doi: 10.1063/1674-0068/27/02/227-232

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return