Effect of Calcination Atmosphere on High Temperature H2S Removal of MnxOy/Al2O3 Sorbent in Synthesis Gas

2021 ◽  
pp. 963-973
Author(s):  
Li Haifeng ◽  
Su Sheng ◽  
Liu Lijun ◽  
Xu Kai ◽  
Hu Song ◽  
...  
Keyword(s):  
High Temperature ◽  
Synthesis Gas ◽  
H2s Removal ◽  
Calcination Atmosphere

Effect of preparation conditions on MnxOy/Al2O3 sorbent for H2S removal from high-temperature synthesis gas

Fuel ◽  
2018 ◽  
Vol 223 ◽  
pp. 115-124 ◽  
Author(s):  
Haifeng Li ◽  
Sheng Su ◽  
Song Hu ◽  
Kai Xu ◽  
Long Jiang ◽  
...  
Keyword(s):  
High Temperature ◽  
Synthesis Gas ◽  
Temperature Synthesis ◽  
H2s Removal ◽  
Preparation Conditions ◽  
High Temperature Synthesis

Influence of calcination atmosphere on the phase evolution mechanism of Bi-2223 high temperature superconductor

2020 ◽  
Vol 31 (15) ◽  
pp. 12333-12344
Author(s):  
Shengnan Zhang ◽  
Botao Shao ◽  
Xiaobo Ma ◽  
Lijun Cui ◽  
Jianqing Feng ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Phase Evolution ◽  
Evolution Mechanism ◽  
Calcination Atmosphere

Chromium free high temperature water–gas shift catalyst for the production of hydrogen from waste derived synthesis gas

2016 ◽  
Vol 522 ◽  
pp. 21-31 ◽  
Author(s):  
Ajay Jha ◽  
Dae-Woon Jeong ◽  
Yeol-Lim Lee ◽  
Won-Jun Jang ◽  
Jae-Oh Shim ◽  
...  
Keyword(s):  
High Temperature ◽  
Synthesis Gas ◽  
Water Gas Shift ◽  
High Temperature Water ◽  
Production Of Hydrogen ◽  
Water Gas ◽  
Shift Catalyst ◽  
Temperature Water

Preparation of the Mn/γ-Al2O3acceptor for high temperature regenerative H2S removal

1999 ◽  
Vol 77 (3) ◽  
pp. 483-488 ◽  
Author(s):  
Bin Liang ◽  
Rob Korbee ◽  
Albert W. Gerritsen ◽  
Cor M. Van Den Bleek
Keyword(s):  
High Temperature ◽  
H2s Removal

scholarly journals Investigation on the Cause of the SO2 Generation during Hot Gas Desulfurization (HGD) Process

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 985
Author(s):  
Byungwook Hwang ◽  
Jung Hwan Kim ◽  
Doyeon Lee ◽  
Hyungseok Nam ◽  
Ha Na Kim ◽  
...  
Keyword(s):  
High Temperature ◽  
Combined Cycle ◽  
Integrated Gasification Combined Cycle ◽  
H2s Removal ◽  
Long Term Stability ◽  
Product Gas ◽  
Integrated Gasification ◽  
Hot Gas Desulfurization ◽  
So2 Gas

In the integrated gasification combined cycle (IGCC) process, the sulfur compounds present in coal are converted to hydrogen sulfide (H2S) when the coal is gasified. Due to its harmful effects on sorbent/solvent and environmental regulations, H2S needs to be removed from the product gas stream. To simulate the H2S removal process, desulfurization was carried out using a dry sorbent as a fluidizing material within a bubbling, high-temperature fluidized bed reactor. The ZnO-based sorbent showed not only an excellent capacity of H2S removal but also long-term stability. However, unexpected SO2 gas at a concentration of several hundred ppm was detected during the desulfurization reaction. Thus, we determined that there is an unknown source that supplies oxygen to ZnS, and identified the oxygen supplier through three possibilities: oxygen by reactant (fresh sorbent, ZnO), byproduct (ZnSO4), and product (H2O). From the experiment results, we found that the H2O produced from the reaction reacts with ZnS, resulting in SO2 gas being generated during desulfurization. The unknown oxygen source during desulfurization was deduced to be oxygen from H2O produced during desulfurization. That is, the oxygen from produced H2O reacts with ZnS, leading to SO2 generation at high temperature.

Polybenzimidazole composite membranes for high temperature synthesis gas separations

2012 ◽  
Vol 415-416 ◽  
pp. 265-270 ◽  
Author(s):  
Kathryn A. Berchtold ◽  
Rajinder P. Singh ◽  
Jennifer S. Young ◽  
Kevin W. Dudeck
Keyword(s):  
High Temperature ◽  
Synthesis Gas ◽  
Composite Membranes ◽  
Gas Separations ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

Plasma Gasification: A Proven Technology

2008 ◽  
Author(s):  
Shyam V. Dighe
Keyword(s):  
Molecular Structure ◽  
Carbon Monoxide ◽  
High Temperature ◽  
Sewage Sludge ◽  
Thermal Treatment ◽  
Hazardous Waste ◽  
Synthesis Gas ◽  
Plasma Gasification ◽  
Gasification Process ◽  
Environmentally Responsible

Plasma gasification is an efficient and environmentally responsible form of thermal treatment of wastes. In the plasma gasification process, extremely high temperature gases are used to break down the molecular structure of complex carboncontaining materials — such as municipal solid waste (MSW), tires, hazardous waste and sewage sludge — and convert them into synthesis gas (syngas) containing hydrogen and carbon monoxide that can be used to generate power or other sustainable sources of energy. Gasification occurs in an oxygen starved environment so the waste is gasified, not incinerated.

Comprehensive Application of Oolitic Hematite for H2S Removal at High Temperature: Performance and Mechanism

2019 ◽  
Vol 33 (3) ◽  
pp. 2037-2044 ◽  
Author(s):  
Hanlin Wang ◽  
Tianhu Chen ◽  
Haibo Liu ◽  
Wengai Li ◽  
Xuehua Zou ◽  
...  
Keyword(s):  
High Temperature ◽  
H2s Removal ◽  
Temperature Performance ◽  
Performance And Mechanism
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