## EXAFS spectroscopy and several supplementary techniques have been used to investigate a variety of coal and polymer chars containing alkali and alkaline earth catalysts, including Ca, K and Rb. In-situ EXAFS measurements were performed on Rb-loaded chars during gasification. At 450ยฐC in 90% N,-
Electrochemical gasification of coal (investigation of operating conditions and variables)
โ Scribed by Mohammad Farooque; Robert W. Coughlin
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 1003 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
โฆ Synopsis
Experimental results are reported for this new process where coal is consumed within an aqueous electrolyte to produce gaseous oxides of carbon at the anode and hydrogen at the cathode. Data are reported on the effect of coal particle size and concentration, activation energy and temperature effects, behaviour of the supporting electrolyte, and changes in morphology and reactivity of the coal during the process. The gas liberated at the anode is almost pure CO;! with a small percentage of CO. When the process is conducted galvanostatically, the potential gradually rises in parallel with accumulation of reaction intermediates on the coal and a corresponding decline in its reactivity. Moreover an abrupt and reproducible jump in potential is observed which suggests at least two different mechanisms for the overall process.
๐ SIMILAR VOLUMES
Oil agglomeration is an effective technique for recovering and deashing coal fines. Conditioning is the most important unit operation prior to agglomeration or size enlargement. In this study, the effects of the design and process parameters in the conditioning step, which markedly influences the ef
After a reflection on the gasification-kinetics of alkali-doped coal the catalytic activities of Li, Na, K, Cs were compared. The behaviour of coke doped with alkali carbonate under inert atmosphere was also studied.
## Abstract A fuel cell anode consisting of gadolinia doped ceria and NiโCu alloy cermet was investigated in CH~4~ fuel. Continuous operational times are reported up to 2,000โh. Morphological and electrochemical analyses are presented. These correlate the initial anode porosity with cell performanc
## Abstract The influence of operational parameters and anode materials on degradation kinetics, mineralization current efficiency, and energy consumption for electrochemical oxidation of phenol was studied. Phenol elimination follows pseudoโfirstโorder kinetics in most cases except for the Ti/RuO~