摘要
城市煤气气源有焦炉、直立炉、水煤气炉、两段水煤气炉等,文中列出了焦炉与水煤气炉的投资比较,说明水煤气是中小城市的主要气源。为节约投资,首先应利用工厂余气,对于规模较小的城市仅需进行变换,而不需进行甲烷化,即供应发热值较低的煤气经济上是合理的。而日供气规模在10×10~4m^3以上时,则采用甲烷化方案也是合适的。
City gas supply by coke ovens, vertical retorts, water-gas generators and two stage water-gas generators are presented. Investment comparison of coke ovens and water-gas generators shows that water-gas should be favored in small and medium cities. To save investment, surplus gas from existing factories should be utilized in the first place. In samll cities direct conversion of water-gas avoiding methanation is to be perferred, i. e. supply of gas with lower heating value is reasonable and more economic for a daily gas supply exceeding 100000m3, methanation may be more suitacle.
出处
《动力工程》
CSCD
1989年第5期44-47,共4页
Power Engineering
