Cyclic feed carbon dioxide gasification of iron-loaded coal char. Approach to activate iron catalyst in coal gasification

1989 ◽  
Vol 3 (4) ◽  
pp. 535-536 ◽  
Author(s):  
Toshimitsu Suzuki ◽  
Hideki Chouchi ◽  
Kimihito Naito ◽  
Yoshihisa Watanabe
Keyword(s):  
Carbon Dioxide ◽  
Coal Gasification ◽  
Iron Catalyst ◽  
Coal Char ◽  
Carbon Dioxide Gasification

The carbon dioxide gasification characteristics of biomass char samples and their effect on coal gasification reactivity during co-gasification

2018 ◽  
Vol 258 ◽  
pp. 70-78 ◽  
Author(s):  
Lihle D. Mafu ◽  
Hein W.J.P. Neomagus ◽  
Raymond C. Everson ◽  
Gregory N. Okolo ◽  
Christien A. Strydom ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Coal Gasification ◽  
Gasification Reactivity ◽  
Biomass Char ◽  
Carbon Dioxide Gasification

Alkali metal catalyzed carbon dioxide gasification of carbon

1992 ◽  
Vol 6 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Toshimitsu Suzuki ◽  
Hiroyuki Ohme ◽  
Yoshihisa Watanabe
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Gasification Of Carbon ◽  
Metal Catalyzed ◽  
Carbon Dioxide Gasification

Causal Examination of Carbon Emissions and Economic Growth for Sustainable Environment: Evidence from Ghana

2021 ◽  
Vol 39 (8) ◽  
Author(s):  
Bosede Ngozi Adeleye ◽  
Emmanuel Nketiah ◽  
Mavis Adjei
Keyword(s):  
Economic Growth ◽  
Carbon Dioxide ◽  
Carbon Emissions ◽  
Sustainable Development Goals ◽  
Coal Gasification ◽  
Lower Cost ◽  
Causal Analysis ◽  
Environmental Benefits ◽  
Sustainable Environment ◽  
Development Goals

This study aligns with the 2030 Sustainable Development Goals (SDGs) 8, and 13 to evaluate the causal relationship between carbon emissions and economic growth in Ghana from 1960 to 2018. Using a battery of econometric techniques, findings indicate, among others, that economic growth is a positive predictor of carbon emissions. Inferences from these estimations point to a growth-led emissions nexus in Ghana. The causal analysis further provides evidence, though weak, that economic growth Granger-cause carbon emissions. Hence, policymakers should encourage coal gasification in Ghana, offering better environmental benefits at a lower cost to address the atmospheric build-up of carbon dioxide.

scholarly journals Separating Hydrogen From Coal Gasification Gases With Alumina Membranes

1991 ◽  
Author(s):  
B. Z. Egan ◽  
D. E. Fain ◽  
G. E. Roettger ◽  
D. E. White
Keyword(s):  
Carbon Dioxide ◽  
Coal Gasification ◽  
Process Development ◽  
Porous Alumina ◽  
Mean Value ◽  
Knudsen Flow ◽  
Gasification Process ◽  
Alumina Membranes ◽  
Separation Factors ◽  
Membrane Permeabilities

Synthesis gas produced in coal gasification processes contains hydrogen, along with carbon monoxide, carbon dioxide, hydrogen sulfide, water, nitrogen, and other gases, depending on the particular gasification process. Development of membrane technology to separate the hydrogen from the raw gas at the high operating temperatures and pressures near exit gas conditions would improve the efficiency of the process. Tubular porous alumina membranes with mean pore radii ranging from about 9 to 22 A have been fabricated and characterized. Based on the results of hydrostatic tests, the burst strength of the membranes ranged from 800 to 1600 psig, with a mean value of about 1300 psig. These membranes were evaluated for separating hydrogen and other gases. Tests of membrane permeabilities were made with helium, nitrogen, and carbon dioxide. Measurements were made at room temperature in the pressure range of 15 to 589 psi. In general, the relative gas permeabilities correlated qualitatively with a Knudsen flow mechanism; however, other gas transport mechanisms such as surface adsorption may also be involved. Efforts are under way to fabricate membranes having still smaller pores. At smaller pore sizes, higher separation factors are expected from molecular sieving effects.

Coal gasification: a source of carbon dioxide for enhanced oil recovery?

1981 ◽  
Vol 15 (12) ◽  
pp. 1418-1424 ◽  
Author(s):  
Kit R. Krickenberger ◽  
Stephen H. Lubore
Keyword(s):  
Carbon Dioxide ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Coal Gasification

scholarly journals Separating Hydrogen From Coal Gasification Gases With Alumina Membranes

1992 ◽  
Vol 114 (2) ◽  
pp. 367-370 ◽  
Author(s):  
B. Z. Egan ◽  
D. E. Fain ◽  
G. E. Roettger ◽  
D. E. White
Keyword(s):  
Carbon Dioxide ◽  
Coal Gasification ◽  
Process Development ◽  
Porous Alumina ◽  
Mean Value ◽  
Knudsen Flow ◽  
Gasification Process ◽  
Alumina Membranes ◽  
Separation Factors ◽  
Membrane Permeabilities

Synthesis gas produced in coal gasification processes contains hydrogen, along with carbon monoxide, carbon dioxide, hydrogen sulfide, water, nitrogen, and other gases, depending on the particular gasification process. Development of membrane technology to separate the hydrogen from the raw gas at the high operating temperatures and pressures near exit gas conditions would improve the efficiency of the process. Tubular porous alumina membranes with mean pore radii ranging from about 9-22 Å have been fabricated and characterized. Based on the results of hydrostatic tests, the burst strength of the membranes ranged from 800-1600 psig, with a mean value of about 1300 psig. These membranes were evaluated for separating hydrogen and other gases. Tests of membrane permeabilities were made with helium, nitrogen, and carbon dioxide. Measurements were made at room temperature in the pressure range of 15-589 psi. In general, the relative gas permeabilities correlated qualitatively with a Knudsen flow mechanism; however, other gas transport mechanisms such as surface adsorption also may be involved. Efforts are under way to fabricate membranes having still smaller pores. At smaller pore sizes, higher separation factors are expected from molecular sieving effects.

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