| 摘要 |
A method and apparatus for producing methyl alcohol with high efficiency and low cost involve producing an H2-CO mixture that is used for synthesizing methyl alcohol, using coal, natural gas, steam, and an oxidizing agent, such as oxygen, as raw materials. At least one of the ratios of natural gas/coal, oxygen/coal, and steam/natural gas are controlled to generate the H2-CO mixture in which the ratio of H2/CO is equal to 2, which is suitable for synthesizing the methyl alcohol. In producing the H2-CO mixture, coal and oxygen are reacted to generate CO, CO2, H2O, H2, and heat, and the heat is utilized to react the natural gas and steam for generating the H2-CO mixture. In comparison with conventional methods for producing methyl alcohol from natural gas, and by coal gasification, the conversion ratio from the raw material to methyl alcohol can be improved by about 10 - 15 %.
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