Proposal for a Regenerative High-Temperature Process for Coal Gas Cleanup with Calcined Limestone

1996 ◽  
Vol 35 (5) ◽  
pp. 1487-1495 ◽  
Author(s):  
A. G. J. van der Ham ◽  
A. B. M. Heesink ◽  
W. Prins ◽  
W. P. M. van Swaaij
Keyword(s):  
High Temperature ◽  
Coal Gas ◽  
High Temperature Process

scholarly journals Effect of cobalt (nickel) oxide on the properties of zinc–titanium sorbents for high temperature desulphurization of model coal gas

2021 ◽  
Author(s):  
M. Chomiak ◽  
J. Trawczyński ◽  
M. Zawadzki
Keyword(s):  
High Temperature ◽  
Sorption Capacity ◽  
Catalytic Effect ◽  
Mixed Oxides ◽  
Mixed Metal Oxides ◽  
Coal Gas ◽  
Cobalt Nickel ◽  
Texture Structure ◽  
Cobalt Nickel Oxide ◽  
Co Doped

AbstractZn–Ti–Co(Ni) sorbents for H2S removal from model hot coal were prepared and characterized. Effects of cobalt (Co) and nickel (Ni) on the sorbents texture, structure, H2S sorption capacity and regeneration properties were determined. TiO2 formed mixed metal oxides with CoO and NiO in the fresh sorbents, while TiO2 and nanocrystalline sulfides of Zn, Co, Ni were found in sulphided ones. The oxidative regeneration of sulphided sorbents re-formed mixed oxides. Sorption capacity of studied materials increased along with an increase of the amount of added Co (Ni) and also with the number of work cycles. Co-doped Zn–Ti materials adsorbed up to 244% more sulfur than these of Zn–Ti, while Ni-doped materials adsorbed ca. twice more H2S than the corresponding Co-doped sorbents. The addition of Co (Ni) decreased the temperature of ZnS oxidation. The catalytic effect of the Co (Ni) oxides on the oxidation of ZnS was suggested.

Study on Alkali-Metal Vapor Removal for High-Temperature Cleaning of Coal Gas

2005 ◽  
Vol 19 (4) ◽  
pp. 1606-1610 ◽  
Author(s):  
Yili Li ◽  
Jian Li ◽  
Yuquan Jin ◽  
Youqing Wu ◽  
Jinsheng Gao
Keyword(s):  
High Temperature ◽  
Alkali Metal ◽  
Metal Vapor ◽  
Coal Gas ◽  
Alkali Metal Vapor

Review on Relationships of Temperature History, Fatigue Damage and Microstructure Evolution Mechanism of Concrete

2014 ◽  
Vol 584-586 ◽  
pp. 944-950 ◽  
Author(s):  
Dong Fu Zhao ◽  
Mei Liu ◽  
Shi Ji Zhang
Keyword(s):  
High Temperature ◽  
Fatigue Damage ◽  
Microstructure Evolution ◽  
Research Direction ◽  
Concrete Research ◽  
Temperature History ◽  
Evolution Mechanism ◽  
Main Research ◽  
High Temperature Process ◽  
Application Prospects

The domestic and overseas research progresses of microstructure of the concrete and fatigue damage after treated by high temperature are reviewed. The main research direction and current shortage on the high temperature process, fatigue damage and the microstructure evolution mechanism of concrete are discussed. A view of the application prospects of concrete research on the high temperature process, fatigue damage and the microstructure evolution mechanism of concrete is forecast.

A study on the reaction kinetics of HCl removal from high-temperature coal gas

2001 ◽  
Vol 72 (1) ◽  
pp. 23-33 ◽  
Author(s):  
Bin-lin Dou ◽  
Jin-sheng Gao ◽  
Xing-zhong Sha
Keyword(s):  
High Temperature ◽  
Reaction Kinetics ◽  
Coal Gas ◽  
Hcl Removal ◽  
Kinetics Of

Influence of Regeneration Condition on Physical and Chemical Properties of High Temperature Coal Gas Desulfurization Sorbent

2014 ◽  
Vol 521 ◽  
pp. 658-661
Author(s):  
Lei Yang ◽  
Shang Guan Ju ◽  
Yu Kun Gao ◽  
Yan Hui Hu
Keyword(s):  
High Temperature ◽  
Circulatory System ◽  
Chemical Properties ◽  
Space Velocity ◽  
Physical And Chemical Properties ◽  
Coal Gas ◽  
Regeneration Condition ◽  
Atmosphere Temperature ◽  
Physical And Chemical ◽  
And Chemical Properties

Physical and chemical properties are closely related to desulfurization, regeneration performance and cycle stability for high temperature coal gas desulfurizer. This review focuses on influence rules of changes in regeneration atmosphere, temperature and space velocity on physical and chemical properties. A large number of experimental researches have shown that regeneration atmosphere, regeneration temperature, space velocity have an important influence on mechanical strength, active component and texture change for high temperature coal gas desulfurizer. The different regeneration atmosphere obviously results in different active ingredients for desulfurization sorbent after regeneration, and regeneration at a higher regeneration temperature will easily cause desulfurizer sintering, as well as small regeneration space velocity can lead to the formation of sulfates. In order to make the circulatory system of sulfidation-regeneration-sulfidation need to the requirements in industrial application, the further research of influence rules of regeneration condition on physical and chemical properties will be crucial.

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