Xiong Zuhong

Examination of Oxygen-Enriched Gasification Process for Municipal Solid Wastes in South China

Theoretical and experimental research on the MSW gasification using oxygen is conducted to determine the favorable conditions for the production of increased syngas production of higher heating value. The technology utilizes oxygen enrichment of air for minimum combustion of the waste to increase heating value of the fuel due to decreased amounts of nitrogen in the syngas. The results showed that increase in equivalence ratio (ER) decreased CO and CH4 content in the syngas while H2 content increased at ER = 0.25 and then decreased. When the ER is greater than 0.30, the gasification controlled reaction change to combustion controlled. The equivalence ratio of in the range of 0.2–0.3 is the most suitable range for oxygen-enriched gasification. The calculated and experimental results showed good agreement. The equivalence ratio is crucial in oxygen enriched gasification of MSW since it impacts the heating value and gas phase components of the syngas produced.

Thermodynamic and Experimental Study on Alcohol Made by Synthesis Gas

First C<inf>1</inf>–C<inf>5</inf> alcohols which were very important in practical application were analyzed, and the thermodynamic analysis for the synthesis of C<inf>1</inf>–C<inf>5</inf> alcohols can guide the experiment in praxis. In the article the equilibrium constants were used to analyze the thermodynamic of the synthesis of C<inf>1</inf>–C<inf>5</inf> alcohols and verified the calculation results in line with the trends of theoretical analysis. Reducing temperature and raising the pressure is useful for CO conversion rate and the generation of C1–C5 alcohols, as well as different molar ratio of H<inf>2</inf>/CO influence CO conversion rate. Eventually the optimum condition was confirmed. A new type of catalyst was developed, which can increase the yield of alcohols, then the theoretical analysiss correctness are verified by the experimental data.