منابع مشابه
Preparation and Characteristics of Biomass Char
Rice husk and sawdust were selected as the raw materials for a study of biomass char yield in the range of 600 to 900 °C. It was found that temperature was the primary factor affecting the biomass char yield. The yield of the rice husk and sawdust chars decreased significantly with increasing temperature. As the residence time increased, the biomass char yield decreased. The smaller the size of...
متن کاملCatalytic Pyrolysis of Tar Model Compound with Various Bio-Char Catalysts to Recycle Char from Biomass Pyrolysis
Tar and char can be regarded as unwanted byproducts during the gasification process. In this study, three types of catalyst, i.e., biomass char (bio-char), nickel supported on biomass (Ni+bio-char), and nickel supported on bio-char (bio-char+Ni), were studied to compare the catalytic effects of different preparation methods on tar model compound removal. The structural characteristics of the th...
متن کاملCatalytic Effect of Metal Species on Enhancement of CO2 Gasification Reactivity of Biomass Char
In the Boudouard reaction, where CO2 is reacted with carbon (char) to produce CO, very high temperatures are required to shift the equilibrium towards CO production. This endothermic reaction is inherently slow and catalytic species are effective to speed up the reaction rate at temperatures below 900 °C. In this study, the catalytic effect of some alkali (K, Na), alkaline earth (Ca) and transi...
متن کاملRemoval of fluoride ion by bone char produced from animal biomass.
Bone char (BC) was prepared by carbonizing four types of animal biomass, and the adsorption of fluoride ions and elution of phosphate ions were investigated. It was found that the BC yield decreased as carbonization temperature increased, and that carbonization temperature had no significant effect on surface pH, base or acid consumptions. Fluoride ion adsorption was increased in BC produced at...
متن کاملUtilization of char from biomass gasification for onsite energy production – Introduction and modelling of a secondary reactor
Gasification of biomass as a technological option for energy conversion is a concept that is widely discussed and taken into consideration. Due to financial incentives, i.e. increased feed – in tariffs, several small scale gasification units have been developed in Europe. In principle, the two main products of gasification are syngas, which is a gaseous fuel and char, which is a solid fraction ...
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ژورنال
عنوان ژورنال: BioScience
سال: 2008
ISSN: 1525-3244,0006-3568
DOI: 10.1641/b580420