Biomass Gasification with Catalytic Tar Reforming: A Model Study into Activity Enhancement of Calcium- and Magnesium-Oxide-Based Catalytic Materials by Incorporation of Iron

2010 ◽  
Vol 24 (7) ◽  
pp. 4034-4045 ◽  
Author(s):  
L. Di Felice ◽  
C. Courson ◽  
D. Niznansky ◽  
P. U. Foscolo ◽  
A. Kiennemann
Keyword(s):  
Magnesium Oxide ◽  
Biomass Gasification ◽  
Catalytic Materials ◽  
Model Study ◽  
Calcium And Magnesium ◽  
Activity Enhancement ◽  
Tar Reforming

scholarly journals Atomic Layer Deposition Coated Filters in Catalytic Filtration of Gasification Gas

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 688
Author(s):  
Tyko Viertiö ◽  
Viivi Kivelä ◽  
Matti Putkonen ◽  
Johanna Kihlman ◽  
Pekka Simell
Keyword(s):  
Atomic Layer ◽  
Biomass Gasification ◽  
Optimal Conditions ◽  
Al2o3 Layer ◽  
Gas Cleaning ◽  
Catalytic Coating ◽  
Layer Deposition ◽  
Coating Methods ◽  
Tar Reforming ◽  
Stop Flow

Steel filter discs were catalytically activated by ALD, using a coating of supporting Al2O3 layer and an active NiO layer for gas cleaning. Prepared discs were tested for model biomass gasification and gas catalytic filtration to reduce or eliminate the need for a separate reforming unit for gasification gas tars and lighter hydrocarbons. Two different coating methods were tested. The method utilizing the stop-flow setting was shown to be the most suitable for the preparation of active and durable catalytic filters, which significantly decreases the amount of tar compounds in gasification gas. A pressure of 5 bar and temperatures of over 850 °C are required for efficient tar reforming. In optimal conditions, applying catalytic coating to the filter resulted in a seven-fold naphthalene conversion increase from 7% to 49%.

Mini-Review on Char Catalysts for Tar Reforming during Biomass Gasification: The Importance of Char Structure

2019 ◽  
Vol 34 (2) ◽  
pp. 1219-1229 ◽  
Author(s):  
Deliang Xu ◽  
Liu Yang ◽  
Kuan Ding ◽  
Yuming Zhang ◽  
Wenran Gao ◽  
...  
Keyword(s):  
Biomass Gasification ◽  
Char Structure ◽  
Tar Reforming

Study of One Sort of Romanian Diatomite as Precursor in the Synthesis of Some Metallic Silicates

2008 ◽  
Vol 59 (6) ◽  
Author(s):  
Dan Macarovici ◽  
Viorel Paraschiv ◽  
Elisabeth-Jeanne Popovici
Keyword(s):  
Calcium Carbonate ◽  
Magnesium Oxide ◽  
Alkaline Earth ◽  
Thermal Reaction ◽  
Calcium Silicates ◽  
Magnesium Silicates ◽  
Calcium And Magnesium ◽  
Alkaline Earth Silicates

The behaviour of one sort of Romanian diatomite as precursor in the synthesis of calcium and magnesium silicates was studied. The calcination of this diatomite, 3 h at 10000C in air, does not produce major modifications in structure and composition. In the same conditions, the thermal reaction between diatomite and calcium carbonate leads to a mixture of calcium silicates (CaSiO3, Ca2SiO4, Ca3SiO5) whereas the reaction product with magnesium oxide is orthomagnesium silicate (Mg2SiO4 - forsterite). This sort of Romanian diatomite can play the same role as other silica sources in the synthesis of alkaline-earth silicates.

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