太阳能煤气化实验研究

基于目前煤炭气化理论,提出了太阳能煤炭气化,将低能量的太阳光聚集成高能流密度的光线束直接照射无氧状态下的煤粉,使高温煤粉与水蒸汽发生系列反应。设计并多次进行太阳能水煤气实验,测得混合气中H2,CO和CO2的组分比,处理分析后表明:温度低于700℃时,混合气中H2体积分数最多可达70%,生成少量CO且二者变化较明显;升高温度,H2转化率降低,CO与CO2之间的相互转化显著;当温度在1000～1050℃时,生成的有效气体(H2和CO)最多,煤炭转化利用率近似99%;继续升高温度,混合气体组分再次出现波动,反应逐渐趋向不稳定,表现出突变的异常现象。 Based on the current coal gasification theory,state the concept of coal gasification powered by solar. That means,gather the low-energy sun light into light beam with high energy flowing density,directly radiate coal powder without oxygen,then the high-temperature pulverized coal react with steam. Design and conduct this experiment for many times,measure the component ratio of hydrogen,carbon monoxide and carbon dioxide in mixture gas. The results show that,when the temperature is below 700 ℃,the H 2 in mixture gas reaches up to 70 percent and little CO is generated,at that time the convertion between H 2 and CO is obvious. Raising temperature,the conversion rate of hydrogen reduce,and the mutual transformation of CO and CO 2 is significant. The yield of effective gas (H 2 and CO) is maximum when the temperature ranging from 1000 ℃ to 1050 ℃,and the coal conversion utilization is approximately 99 percent. The composition of mixture gas fluctuate again with the rise of temperature,the reaction trends to be unstable,even appears mutant abnormal phenomena