Method for manufacturing synthetic natural gas

摘要

The present invention relates to a method for manufacturing synthetic natural gas. In the method for manufacturing synthetic natural gas (SNG), a primary methane synthesis reaction process is performed on synthetic gas generated after fuel-gasification and dust-collection processes are performed, and then a water-gas shift reaction process is performed on only a portion of the gas, and the remaining gas is bypassed. Then, the gases are remixed to perform a secondary methane synthesis reaction process, thereby controlling the generation of methane synthesis reaction heat and improving the lifespan of a catalyst.