نتایج جستجو برای: char
تعداد نتایج: 3088 فیلتر نتایج به سال:
4 The Summary Charts 13 4.1 Chart Notations . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.2 Char 2 Residue Field . . . . . . . . . . . . . . . . . . . . . . 15 4.3 Char 2 In Detail . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.4 Char 2 Kn Detail . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.5 Char 2 I n Detail . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.6 C...
The fate of char-N (nitrogen removed from the coal matrix during char oxidation) has been widely studied at fluidized bed conditions. This work extends the study of char-N to pulverized coal conditions. Coal chars from five parent coals were prepared and burned in a laboratory-scale pulverized coal combustor in experiments designed to identify the parameters controlling the fate of char-N. The ...
Preparation porous bio-char and activated carbon from rice husk char study has been conducted in this study. Rice husk char contains high amount silica that retards the porousness of bio-char. Porousness of rice husk char could be enhanced by removing the silica from char and applying heat at high temperature. Furthermore, the char is activated by using chemical activation under high temperatur...
This study presents an experimental evaluation of the rate of nitric oxide reduction on the char surface. It addresses the claim that the rate for the destruction of nitric oxide on the char surface has been underpredicted due to char deactivation in the process of char formation. Experiments conducted with chars produced in situ, char previously produced at pulverized combustion conditions, an...
Background and aims : Microorganisms are one of the most important sources of contamination in indoor air and occupational environments especially in hospitals. The aim of this study was to evaluate the adsorption characteristics of bone char to adsorb B. Subtilis in the air. Methods: In this study B.subtilis spores were used as a model of bacterial spores. Also bone char was used as an ads...
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...
Coal gasification with carbon dioxide is a process for generating clean gaseous fuels and relieving greenhouse effect. Zhundong coal has high alkali and alkali earth metals (AAEMs) content, medium volatile and low ash in nature. Isothermal CO2 gasification of char derived from Zhundong coal (R-char) and char from acid washing R-char (AR-char) are performed in thermo-gravimetric analyzer (TGA). ...
l. Dilute fish odours from four distinct char populations elicited differential responses from char olfactory bulb cells. 2. Differential sensory responses produced by odours from migratory and non-migratory populations of char suggest that fish odours could act as pheromones which help guide homing in these salmonids. 3. Skin mucous may well be the principal source of odorants released by the ...
A slow pyrolysis of pinewood was investigated in this paper. Through the briquette process, the pinewood sawdust becomes molded biomass. The molded bio-char was produced from molded biomass with different pyrolysis factors, and the bio-char’s heating value, char yield rates, and physicochemical and morphological properties were investigated. Molded bio-char’s characteristics depended principall...
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