Fast microwave-assisted catalytic gasification of biomass for syngas production and tar removal

2014 ◽  
Vol 156 ◽  
pp. 291-296 ◽  
Author(s):  
Qinglong Xie ◽  
Fernanda Cabral Borges ◽  
Yanling Cheng ◽  
Yiqin Wan ◽  
Yun Li ◽  
...  
Keyword(s):  
Catalytic Gasification ◽  
Tar Removal ◽  
Syngas Production ◽  
Microwave Assisted

Gasification of Municipal Solid Waste Using Tyre Char as Catalyst

2019 ◽  
Vol 797 ◽  
pp. 102-107
Author(s):  
Mizan Qistina Saharuddin ◽  
Sharifah Aishah Syed A. Kadir ◽  
Rusmi Alias
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Recovery ◽  
Catalytic Performance ◽  
Catalytic Gasification ◽  
Tar Removal ◽  
Principal Problem ◽  
Syngas Production ◽  
Gasification Process ◽  
Waste Tyre

Gasification is raised as the most promising technologies of municipal solid waste (MSW) removal as well as energy recovery. The principal problem related with the gasification process is the high amount of tar released during the gasification process that causes environmental and operational problems. The purpose of this study is to investigate the performance of MSW gasification using tyre char as an alternative option for catalytic gasification to produce tar free clean gas. Catalytic performance of tyre char was compared with performance of MSW gasification alone without the tyre char in a bench scale downdraft reactor. The waste tyre char removed 80% of tars in syngas at 700 °C. Analysis of the syngas compositions indicated that concentration of H2and CO were significantly increased. Therefore, it was concluded that chars especially tyre char can be an effective and inexpensive catalyst for tar removal and syngas production of MSW gasification.

Activated char supported Fe-Ni catalyst for syngas production from catalytic gasification of pine wood

2021 ◽  
pp. 125600
Author(s):  
Jianjun Hu ◽  
Zhentao Jia ◽  
Shuheng Zhao ◽  
Wei Wang ◽  
Quanguo Zhang ◽  
...  
Keyword(s):  
Ni Catalyst ◽  
Catalytic Gasification ◽  
Pine Wood ◽  
Syngas Production

Molecular Dynamic Simulation of Hydrogen Production by Catalytic Gasification of Key Intermediates of Biomass in Supercritical Water

2017 ◽  
Vol 140 (4) ◽  
Author(s):  
Hui Jin ◽  
Bin Chen ◽  
Xiao Zhao ◽  
Changqing Cao
Keyword(s):  
Supercritical Water ◽  
Active Sites ◽  
Density Functional ◽  
Free Carbon ◽  
Ni Catalyst ◽  
Catalytic Gasification ◽  
Syngas Production ◽  
Reactor Optimization ◽  
Cu Catalyst ◽  
Microscopic Reaction

Supercritical water gasification (SCWG) is an efficient and clean conversion of biomass due to the unique chemical and physical properties. Anthracene and furfural are the key intermediates in SCWG, and their microscopic reaction mechanism in supercritical water may provide information for reactor optimization and selection of optimal operating condition. Density functional theory (DFT) and reactive empirical force fields (ReaxFF) were combined to investigate the molecular dynamics of catalytic gasification of anthracene and furfural. The simulation results showed that Cu and Ni obviously increased the production of H radicals, therefore the substance SCWG process. Ni catalyst decreased the production of H2 with the residence time of 500 ps while significantly increased CO production and finally increased the syngas production. Ni catalyst was proved to decrease the free carbon production to prohibit the carbon deposition on the surface of active sites; meanwhile, Cu catalyst increased the production of free carbon.

H 2 -rich syngas production through mixed residual biomass and HDPE waste via integrated catalytic gasification and tar cracking plus bio-char upgrading

2017 ◽  
Vol 308 ◽  
pp. 578-587 ◽  
Author(s):  
Reza Alipour Moghadam Esfahani ◽  
Luigi Osmieri ◽  
Stefania Specchia ◽  
Suzana Yusup ◽  
Ahmad Tavasoli ◽  
...  
Keyword(s):  
Catalytic Gasification ◽  
Syngas Production ◽  
Residual Biomass ◽  
Tar Cracking

Catalytic gasification of pyrolytic oil from tire pyrolysis process

2013 ◽  
Vol 67 (12) ◽  
Author(s):  
Lukáš Gašparovič ◽  
Lukáš Šugár ◽  
Ľudovít Jelemenský ◽  
Jozef Markoš
Keyword(s):  
Catalytic Decomposition ◽  
Pyrolysis Process ◽  
Scrap Tire ◽  
Catalytic Gasification ◽  
Water Steam ◽  
Tar Removal ◽  
Gasification Process ◽  
Process Gas ◽  
Pyrolytic Oil ◽  
Positive Effect

AbstractThe present work deals with thermo-catalytic decomposition of pyrolytic oil from the scrap tire pyrolysis process. Such oil can be used as a model tar in an experimental study of tar removal from pyrolysis or gasification process gas. Several experiments under different conditions were carried out in order to determine conditions of the gasification and pyrolysis processes. Influence of the oil to steam ratio, temperature, and of the presence of dolomite catalyst was studied. Addition of water steam has positive effect on the hydrogen content in the outgoing process gas as well as on the conversion of the injected oil. The catalytic gasification experiment in a quasi steady state produced process gas with the composition: 61 mole % of H2, 6.4 mole % of CO, and 11.7 mole % of CH4. At temperatures lower than 800°C, the amount of process gas decreased resulting also in a decrease of the oil conversion. A comparison of gasification experiments using fresh calcined dolomite with experiments proceeding with regenerated dolomite was done under the same conditions. There was a decrease in the process gas volumetric flow when regenerated catalyst was used.

scholarly journals Bio-syngas production from biomass catalytic gasification

2007 ◽  
Vol 48 (4) ◽  
pp. 1132-1139 ◽  
Author(s):  
Pengmei Lv ◽  
Zhenhong Yuan ◽  
Chuangzhi Wu ◽  
Longlong Ma ◽  
Yong Chen ◽  
...  
Keyword(s):  
Catalytic Gasification ◽  
Syngas Production

scholarly journals Hydrogen-rich syngas production via catalytic gasification of sewage sludge and wheat straw using corn stalk char-supported catalysts

BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 4294-4313
Author(s):  
Shuang Shang ◽  
Chaoqiang Guo ◽  
Kui Lan ◽  
Zeshan Li ◽  
Weitao He ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Wheat Straw ◽  
Supported Catalysts ◽  
Biomass Gasification ◽  
Fixed Bed Reactor ◽  
High Catalytic Activity ◽  
Corn Stalk ◽  
Catalytic Gasification ◽  
X Ray ◽  
Syngas Production

The co-gasification of wheat straw and wet sewage sludge for hydrogen-rich gas production was investigated in a fixed bed reactor with corn stalk char (CSC)-supported catalysts. The Ni/CSC, Ni-Fe/CSC, and Ni-Fe-La/CSC catalysts were characterized via ultimate analysis, X-ray fluorescence, thermogravimetric, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, Brunauer-Emmett-Teller, and Fourier transform infrared spectroscopy analyses. A series of experiments were performed to explore the effects of reactor temperature, catalyst type, moisture content of wet sludge, and catalyst recycling performance on the composition and yield of gasification gases. The experiments demonstrated that the nickel-iron alloy (Fe0.64Ni0.36) was detected in the Ni-Fe-La/CSC catalyst, and the Ni-Fe-La/CSC catalyst showed much higher hydrogen production compared with the Ni/CSC and Ni-Fe/CSC catalysts. Furthermore, La2O3 effectively maintained the catalytic performance of the catalyst by relieving carbon deposition. Compared with non-catalyst biomass gasification, H2 yield increased from 3.80 mol/kg to 11.96 mol/kg using Ni-Fe-La/CSC catalyst at 600 °C. The newly developed tri-metallic Ni-Fe-La/CSC catalyst exhibited high catalytic activity for biomass gasification at low temperature.

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