DOI: 10.11799/ce201708002
Simulation of lignite underground gasification using Aspen Plus
SHI Long-xi
LIANG Jie
WANG Yi-liang
WANG Li
ZHAO Xue
LI Yu-long
ZHANG Yu
Abstract：In order to study the underground coal gasification process,Aspen Plus with a variety of unit operation module and kinetics equations of underground coal gasification was used to simulate the underground gasification process of lignite.The gasification process in-situ gasifier was described more accurately in the simulation,and the result of the simulation agreed well with model test results.The reduction zone was more concentrated and idealistic in the simplification of simulation.Pyrolysis reaction of coal was selected to replace reduction reaction when the reduction reaction was not dominant in the second half of reduction zone.According to the simulation result,the components of H2 and CO are slightly higher while that of CH4,CO2 and N2 are slightly lower,when the amount of coal is slightly less than actual situation.
Keywords：underground gasificationAspen Plusnumerical simulationlignite
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 5-8 )