Study on coal to synthetic natural gas with co-production of methanol and ethylene glycol based on carbon dioxide back to gasifier [基于二氧化碳返炉的煤制天然气联产甲醇和乙二醇工艺研究]

作者：Liu Y.; Wu X.-Z.; Liu Y.-J.; Wang B.

来源：Modern Chemical Industry, 2021, 41(7): 214-218.

DOI：10.16606/j.cnki.issn0253-4320.2021.07.043

• Carbon dioxide back to gasifier
• Co-production process
• Coal to synthetic natural gas
• Material flow analysis

A typical 1.3 billion cubic meter per year coal to synthetic natural gas with methanol and ethylene glycol co-production process is analyzed by material flow and energy flow analysis methods to find out the existing problems and optimize the process space.On this foundation, a coal to synthetic natural gas, methanol and ethylene glycol co-production process based on carbon dioxide back to the gasifier is proposed.Material balance and energy balance data of the process are obtained by using the simulation calculation method.It is found through analysis that the co-production process based on carbon dioxide back to the gasifier can increase annual income by about RMB199 million compared with typical co-production process, showing that this process has more economic advantages by means of integrating carbon dioxide back to gasifier technology into the coal to synthetic natural gas, methanol and ethylene glycol co-production process.

• 单位
  华南理工大学