Comparative evaluation for catalytic gasification of petroleum coke and asphaltene in subcritical and supercritical water

2019 ◽  
Vol 31 ◽  
pp. 107-118 ◽  
Author(s):  
Rachita Rana ◽  
Sonil Nanda ◽  
Aimee Maclennan ◽  
Yongfeng Hu ◽  
Janusz A. Kozinski ◽  
...  
Keyword(s):  
Petroleum Coke ◽  
Supercritical Water ◽  
Comparative Evaluation ◽  
Catalytic Gasification

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.

Catalytic gasification of light and heavy gas oils in supercritical water

2020 ◽  
Vol 93 (5) ◽  
pp. 2025-2032 ◽  
Author(s):  
Rachita Rana ◽  
Sonil Nanda ◽  
Sivamohan N. Reddy ◽  
Ajay K. Dalai ◽  
Janusz A. Kozinski ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Catalytic Gasification ◽  
Heavy Gas

scholarly journals Catalytic gasification of wheat straw in hot compressed (subcritical and supercritical) water for hydrogen production

2018 ◽  
Vol 6 (5) ◽  
pp. 448-459 ◽  
Author(s):  
Sonil Nanda ◽  
Sivamohan N. Reddy ◽  
Dai-Viet N. Vo ◽  
Bichitra N. Sahoo ◽  
Janusz A. Kozinski
Keyword(s):  
Hydrogen Production ◽  
Wheat Straw ◽  
Supercritical Water ◽  
Catalytic Gasification

Pretreatment of Petroleum Coke To Enhance the Reactivity of Catalytic Gasification in Fluidized Beds

2018 ◽  
Vol 32 (8) ◽  
pp. 8115-8120 ◽  
Author(s):  
Renjie Zou ◽  
Liang Cao ◽  
Guangqian Luo ◽  
Zehua Li ◽  
Ruize Sun ◽  
...  
Keyword(s):  
Petroleum Coke ◽  
Fluidized Beds ◽  
Catalytic Gasification

Catalytic gasification of cellulose and pinewood to H2 in supercritical water

Fuel ◽  
2014 ◽  
Vol 118 ◽  
pp. 416-425 ◽  
Author(s):  
Ning Ding ◽  
Ramin Azargohar ◽  
Ajay K. Dalai ◽  
Janusz A. Kozinski
Keyword(s):  
Supercritical Water ◽  
Catalytic Gasification

Low-Temperature Catalytic Gasification of Lignin and Cellulose with a Ruthenium Catalyst in Supercritical Water

2004 ◽  
Vol 18 (2) ◽  
pp. 327-333 ◽  
Author(s):  
Mitsumasa Osada ◽  
Takafumi Sato ◽  
Masaru Watanabe ◽  
Tadafumi Adschiri ◽  
Kunio Arai
Keyword(s):  
Low Temperature ◽  
Supercritical Water ◽  
Ruthenium Catalyst ◽  
Catalytic Gasification

Catalytic gasification of digestate sludge in supercritical water on the pilot plant scale

2017 ◽  
Vol 7 (4) ◽  
pp. 415-424 ◽  
Author(s):  
Nikolaos Boukis ◽  
Elena Hauer ◽  
Sophia Herbig ◽  
Jörg Sauer ◽  
Frédéric Vogel
Keyword(s):  
Supercritical Water ◽  
Pilot Plant ◽  
Catalytic Gasification ◽  
Pilot Plant Scale

Catalytic gasification of glycine and glycerol in supercritical water

2009 ◽  
Vol 34 (13) ◽  
pp. 5357-5364 ◽  
Author(s):  
Donghai Xu ◽  
Shuzhong Wang ◽  
Xin Hu ◽  
Chongming Chen ◽  
Qingming Zhang ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Catalytic Gasification

Catalytic gasification of algae in supercritical water for biofuel production and carbon capture

2009 ◽  
Vol 2 (5) ◽  
pp. 535 ◽  
Author(s):  
Samuel Stucki ◽  
Frédéric Vogel ◽  
Christian Ludwig ◽  
Anca G. Haiduc ◽  
Martin Brandenberger
Keyword(s):  
Supercritical Water ◽  
Carbon Capture ◽  
Biofuel Production ◽  
Catalytic Gasification
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