Low-temperature catalytic conversion of lignite: 2. Recovery and reuse of potassium carbonate supported on perovskite oxide in steam gasification

2014 ◽  
Vol 20 (1) ◽  
pp. 194-201 ◽  
Author(s):  
Young-Kwang Kim ◽  
Joo-Il Park ◽  
Doohwan Jung ◽  
Jin Miyawaki ◽  
Seong-Ho Yoon ◽  
...  
Keyword(s):  
Low Temperature ◽  
Potassium Carbonate ◽  
Catalytic Conversion ◽  
Steam Gasification ◽  
Perovskite Oxide ◽  
Recovery And Reuse

Low-temperature catalytic conversion of lignite: 1. Steam gasification using potassium carbonate supported on perovskite oxide

2014 ◽  
Vol 20 (1) ◽  
pp. 216-221 ◽  
Author(s):  
Young-Kwang Kim ◽  
Joo-Il Park ◽  
Doohwan Jung ◽  
Jin Miyawaki ◽  
Seong-Ho Yoon ◽  
...  
Keyword(s):  
Low Temperature ◽  
Potassium Carbonate ◽  
Catalytic Conversion ◽  
Steam Gasification ◽  
Perovskite Oxide

Low Temperature Catalytic Steam Gasification of Waste Palm Trunk by Pottasium Carbonate Supported on Perovskite Oxide

2012 ◽  
Vol 626 ◽  
pp. 551-558
Author(s):  
Nor Azizi ◽  
Young Kwang Kim ◽  
Jin Miyawaki ◽  
Isao Mochida ◽  
Seong Ho Yoon
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Raw Materials ◽  
Steam Gasification ◽  
Perovskite Oxide ◽  
Carbon Conversion ◽  
Pyrolysis Reactor ◽  
Pre Treatment ◽  
Short Time ◽  
Gasification Temperature

A waste palm trunk was used as raw materials of derived biochar in catalytic steam gasification experiments. Pre-treatment was done to enrich the carbon content and removed the heavy and light tar. Waste palm trunk has been added in pyrolysis reactor to produce biochar at temperature 550°C under N2 flow. The experimental ran in a bubbling fluidized reactor at atmospheric pressure by the steam as gasification agent and Nitrogen as a carrier gas with different catalysts such as K2CO3 / LaMn0.8Cu0.2, K2CO3 / Alumina, Alumina and K2CO3 respectively. The experiments have been carried out to investigate the effect of gasification temperature, effect of catalyst and effect of catalyst ratio to biochar on the carbon conversion into syngas. The syngas compositions were analyzed by gas chromatography. K2CO3 / LaMn0.8Cu0.2 catalyst showed the better carbon conversion as compared to the other catalysts. Perovskite oxide was more effective as a support for the gasification catalyst. The results showed that the better carbon conversion ratio within short time gasification and removed heavy and light tar. K2CO3 / LaMn0.8Cu0.2 showed high activity for biochar gasification at low temperature and good recovery property near 750°C.

Low-temperature catalytic conversion of lignite: 3. Tar reforming using the supported potassium carbonate

2014 ◽  
Vol 20 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Young-Kwang Kim ◽  
Joo-Il Park ◽  
Doohwan Jung ◽  
Jin Miyawaki ◽  
Seong-Ho Yoon ◽  
...  
Keyword(s):  
Low Temperature ◽  
Potassium Carbonate ◽  
Catalytic Conversion ◽  
Tar Reforming

Kinetics of catalytic conversion of methanol at higher pressures

1980 ◽  
Vol 45 (12) ◽  
pp. 3402-3407 ◽  
Author(s):  
Jaroslav Bartoň ◽  
Vladimír Pour
Keyword(s):  
Low Temperature ◽  
Reaction Kinetics ◽  
Water Vapour ◽  
Kinetic Data ◽  
Catalytic Conversion ◽  
The Given ◽  
Kinetics Of

The course of the conversion of methanol with water vapour was followed on a low-temperature Cu-Zn-Cr-Al catalyst at pressures of 0.2 and 0.6 MPa. The kinetic data were evaluated together with those obtained at 0.1 MPa and the following equation for the reaction kinetics at the given conditions was derived: r = [p(CH3OH)p(H2O)]0.5[p(H2)]-1.3.

Low-temperature gas nitriding of AISI 4140 steel accelerated by LaFeO3 perovskite oxide

2019 ◽  
Vol 466 ◽  
pp. 989-999 ◽  
Author(s):  
Xing Chen ◽  
Xiangyun Bao ◽  
Yang Xiao ◽  
Chengsong Zhang ◽  
Lina Tang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Perovskite Oxide ◽  
Aisi 4140 Steel ◽  
Gas Nitriding ◽  
Aisi 4140
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