Immobilization of crystalline Fe2O3 nanoparticles over SiO2 for creating an active and stable catalyst: A demand for high temperature sulfuric acid decomposition

2021 ◽  
Vol 283 ◽  
pp. 119610
Author(s):  
Ashish Nadar ◽  
Atindra Mohan Banerjee ◽  
M.R. Pai ◽  
Sher Singh Meena ◽  
A.K. Patra ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
High Temperature ◽  
Fe2o3 Nanoparticles ◽  
Acid Decomposition ◽  
Stable Catalyst ◽  
Sulfuric Acid Decomposition

High-temperature sulfuric acid decomposition over complex metal oxide catalysts

2009 ◽  
Vol 34 (9) ◽  
pp. 4065-4073 ◽  
Author(s):  
Daniel M. Ginosar ◽  
Harry W. Rollins ◽  
Lucia M. Petkovic ◽  
Kyle C. Burch ◽  
Michael J. Rush
Keyword(s):  
Sulfuric Acid ◽  
High Temperature ◽  
Metal Oxide ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Acid Decomposition ◽  
Complex Metal ◽  
Complex Metal Oxide ◽  
Sulfuric Acid Decomposition

Design and Cost of the Sulfuric Acid Decomposition Reactor for the Sulfur Based Hydrogen Processes

2008 ◽  
Author(s):  
Tzu-Yu Hu ◽  
Sarah M. Connolly ◽  
Edward J. Lahoda ◽  
Willem Kriel
Keyword(s):  
Sulfuric Acid ◽  
High Temperature ◽  
Low Temperature ◽  
Engineering Design ◽  
Coated Steel ◽  
Acid Decomposition ◽  
Chemical Systems ◽  
Reasonable Cost ◽  
Operating Lifetime ◽  
Sulfuric Acid Decomposition

The key interface component between the reactor and chemical systems for the sulfuric acid based processes to make hydrogen is the sulfuric acid decomposition reactor. The materials issues for the decomposition reactor are severe since sulfuric acid must be heated, vaporized and decomposed. SiC has been identified and proven by others to be an acceptable material. However, SiC has a significant design issue when it must be interfaced with metals for connection to the remainder of the process. Westinghouse has developed a design utilizing SiC for the high temperature portions of the reactor that are in contact with the sulfuric acid and polymeric coated steel for low temperature portions. This design is expected to have a reasonable cost for an operating lifetime of 20 years. It can be readily maintained in the field, and is transportable by truck (maximum OD is 4.5 meters). This paper summarizes the detailed engineering design of the Westinghouse Decomposition Reactor and the decomposition reactor’s capital cost.

Pt-core silica shell nanostructure: a robust catalyst for the highly corrosive sulfuric acid decomposition reaction in sulfur iodine cycle to produce hydrogen

2021 ◽  
Author(s):  
Hassnain Abbas Khan ◽  
Kwang-Deog Jung ◽  
Tansir Ahamad ◽  
Mohd Ubaidullah ◽  
Muhammad Imran ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
High Temperature ◽  
Pt Nanoparticles ◽  
Decomposition Reaction ◽  
Silica Shell ◽  
Acid Decomposition ◽  
Sulfuric Acid Decomposition

The platinum core silica shell catalyst has facilitated stable sulfuric acid decomposition at high-temperature which was not possible over bare Pt nanoparticles due to sintering and agglomeration.

scholarly journals SiC mesoporous membranes for sulfuric acid decomposition at high temperatures in the iodine–sulfur process

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41883-41890
Author(s):  
Xin Yu ◽  
Qing Wang ◽  
Hiroki Nagasawa ◽  
Masakoto Kanezashi ◽  
Toshinori Tsuru
Keyword(s):  
Sulfuric Acid ◽  
High Temperatures ◽  
Membrane Reactor ◽  
Acid Decomposition ◽  
Sic Particles ◽  
Sulfuric Acid Decomposition ◽  
Mesoporous Membranes ◽  
Mesoporous Membrane ◽  
Reaction Equilibrium

In the present study, SiC particles derived mesoporous membrane was discovered and applied to membrane reactor for H2SO4 decomposition. The reaction equilibrium was moved the to the product side by membrane reactor with extraction at 600 °C.

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