Using supercritical water oxidation process to treat RDX wastewater,the influences of reaction temperature,time and pressure on the treatment effect were discussed.
Reaction mechanism of heavy oil pyrolysis in supercritical water(SCW)was studied at(420-)460℃ and 23-27MPa in batch reactor by using hexadecane as model compound.
Using supercritical water oxidation process to treat RDX wastewater,the influences of reaction temperature,time and pressure on the treatment effect were discussed.
The supercritical water-cooled reactor has favorable features in economics, sustainability and technology availability.
A new supercritical water-cooled reactor (SCWR) core structure (the mixed reactor core) and a new fuel assembly design (two-rows FA) are proposed.
Heat transfer to supercritical water in the inclined upward internally ribbed tube was enhanced or deteriorated near the pseudo-critical temperature with the variety of ratio between the mass velocity and the heat flux.
Hydrogen production from co-gasification of coal and biomass in supercritical water by continuous flow thermal-catalytic reactio
The co-gasification performance of coal and a model compound of biomass, carboxymethylcellulose (CMC) in supercritical water (SCW), were investigated experimentally.
In a semi-continuous apparatus, Shenfu coal was extracted by supercritical water, toluene, 90% water+10% tetralin and 90% toluene +10% tetralin. The effects of the four solvents on the extraction process were investigated. The results indicated that extraction of Shenfu coal with the four solvents can all get high liquid yield that is 2.65～5.72 times of the yield of Fisch-assay tar oil. Using toluene as a solvent, the conversion and gas yield are lower than using water as a solvent, but extract...
In a semi-continuous apparatus, Shenfu coal was extracted by supercritical water, toluene, 90% water+10% tetralin and 90% toluene +10% tetralin. The effects of the four solvents on the extraction process were investigated. The results indicated that extraction of Shenfu coal with the four solvents can all get high liquid yield that is 2.65～5.72 times of the yield of Fisch-assay tar oil. Using toluene as a solvent, the conversion and gas yield are lower than using water as a solvent, but extract yield is hihger than that extracted by water. Extraction with toluene has a physical process before 300℃, but extraction with water has not. The addition of 10% tetralin to water or toluene has a signficant improvement on conversion and extract yield.
By using supercritical water, the desulfurization in hard coal and cooking coal fromGuizhou Province have been determined at 35O'C and 4OOC near the critical temperature of water.The results show that the desulfurization is better at 40OC,and its rate decreases with increasingpressure. However,it is necessary to consider the opposit0 effect of increasing water/coal ratio.The optimum desulfurization rate is contr0lled by the duration 0f reacti0n,but the quality of coalbecomes worse apparently...
By using supercritical water, the desulfurization in hard coal and cooking coal fromGuizhou Province have been determined at 35O'C and 4OOC near the critical temperature of water.The results show that the desulfurization is better at 40OC,and its rate decreases with increasingpressure. However,it is necessary to consider the opposit0 effect of increasing water/coal ratio.The optimum desulfurization rate is contr0lled by the duration 0f reacti0n,but the quality of coalbecomes worse apparently with increasing oeaction time. The conoent of ooganic sulfur in coal di-rectly affects the desulfurization.The experimental results in alkaline hydrothermal solution indicate that the desulfurizati0nrate of hard coal is higher than that of cooking coal after one-day-long reaction. And the desulfur-ization rate of cooking coal is decreased with increasing duration of reaction. In optimum reactiontime there is an apparent difference between the methods of supercritical water and alkaline hy-drothermal solution.
The oxidation of coal in supercritical water was investigated by using O2 decomposed in situ from H2O2 as the oxidant. The results indicated that the sulfur and nitrogen contained in coal were gradually converted into SO42 and N2 respectively by oxidation in the supercritical water medium. The coal oxidation became faster with higher reaction temperature and higher concentration of H2O2.
在分类学科中查询
supercritical water
超临界水
查询“supercritical water”译词为其他词的双语例句
查询“supercritical water”译词为用户自定义的双语例句
2008 CNKI－中国知网