氧气与二氧化碳非催化重整焦炉煤气

NON-CATALYTIC REFORMING COKE OVEN GAS WITH O_2 AND CO_2

为了有效利用焦炉煤气和二氧化碳,开发了氧气与二氧化碳非催化重整焦炉煤气工艺,考察了反应温度、原料气配比对常压下氧气与二氧化碳非催化重整焦炉煤气反应的影响。利用气相色谱对产物进行了分析测定,结果表明:氧气与二氧化碳非催化重整焦炉煤气反应宜在高温条件下进行;V(O_2):V(CH_4)增大,有利于甲烷转化,二氧化碳转化率和一氧化碳收率则先增大后减小,最佳比值为(1.0～1.1):1;V(CO_2):V(CH_4)增大,不利于甲烷转化和一氧化碳合成,二氧化碳转化率则先增大后减小,最佳比值为0.8～0.9;体系总氧量一定时,V(O_2):V(CO_2)增大的变化规律与V(O_2):V(CH_4)增大时的规律相同,其最佳比值为(1.2～1.3):1;V(O_2):V(CO_2)为1.3时,体系总氧量的增大对甲烷转化和一氧化碳合成有利,但不利于二氧化碳转化,总氧量最佳值为450～500 mL/min。该实验说明,氧气与二氧化碳非催化重整焦炉煤气方法是可行的,采用该法甲烷和二氧化碳转化率分别可达97%和72%。

Reaction of non-catalytic reforming simulating coke oven gas was studied for the utilizination of coke oven gas and CO2 effectively. gas with O2 and CO2 to synthesis The effects of reaction temperatureand feed ratios were considered in the non-catalytic reforming coke oven gas with CO2 and O2 at the at- mospheric pressure. The products were analyzed by gas chromatograph. The results showed that high reaction temperature favored non-catalytic reforming coke oven gas with O2 and CO2. The conversion of CH, with increased remarkably with increasing the V（O2） ： V（CH4） ratio. While the conversion of CO2 and the yield of CO increased first and then decreased. The best V（O2） ： V（CH4） ratio was 1.0 - 1.1. The conversion of CH4 and the yield of CO decreased with increasing the V（CO2） ： V（CH4） rati- o, but the conversion of CO2 increased at first and then decreased. The best V（CO2） ： V（CH4） ratio was 0.8 -0.9. In the definite volume of total oxygen, the reaction rules of increasing the V（O2）：V （CO2） ratio was the same with the V（O2） ： V（CH4） ratio and the best V（O2） ： V（CO2） ratio was 1.2 -1.3. When the V（O2） ： V（CO2） ratio was 1.3, the conversion of CH4 and the yield of CO increased and the conversion of CO2 decreased with increasing the volume of total oxygen. The investi- gation manifested the method of non-catalytic reforming simulating coke oven gas with O2 and CO2 to synthesis gas was fine, in which the conversions of both CH4 and CO2 were 97% and 72%, respectively.