太阳能煤气化技术及发展前景

Solar coal gasification technology and it's development

通过太阳能水煤气实验,研究了温度、反应物成分、气流速率等因素对煤气转换率的影响。经多次实验测得混合气中H2,CO和CO2的组分比,结果表明:温度较低时,反应不稳定,H2转化率较高,生成少量CO;随温度升高,H2转化率缓慢降低,CO和CO2相互转化明显,在1000～1050℃范围内煤炭转化率最高,近似99%,其中H2约占49%。在煤气转化过程中,升高温度可显著提高反应速率和有效气体的转化率;降低氧气含量可使反应简单,促进水煤气变换反应的持续进行,可进一步提高煤气生成率。

Gasify pulverized coal to water gas by solar.Research the influence of temperature,pulverized coal properties,airflow rate and other factors on conversion rate.Through lots of experiments,get the proportion of H2,CO,CO2 in mixture.The results show that,at lower temperature,the reaction is unstable and the hydrogen conversion rate is higher,and it generates less CO2.With the rise of temperature,the hydrogen conversion rate slowly decrease,and the conversion of carbon monoxide and carbon dioxide is very obvious.The conversion of pulverized coal reaches up to 99 percent,hydrogen 49 percent while the temperature varies from 1000 ℃ to 1050 ℃.During coal gas transformation,raising the temperature could significantly improve the reaction rate and effective gas conversion rate.Reducing oxygen content could simplify and power the reaction,which further enhance the coal gas yield.