CO gas generating of coal for low O2 concentration in N 2 or CO2 rich atmosphere by rapid heating

Zhigang Li, Xiaoming Zhang, Kyuro Sasaki, Yuichi Sugai, Jiren Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, experiments on generating of CO gas from heated coal samples have been carried out by controlling the atmospheric condition in low O 2 concentration in considering sealed goaf areas at underground coal mines. The laser beam was used to make coal temperature over 60°C within few minutes in order to minimize coal oxidation in heating process. The O 2 concentration in atmosphere is controlled by injecting Air, pure N2, pure CO2 or N2-CO2 mixing gases to simulate a sealed area with an inert gas injected. The results of coal weight reduction ratio and CO gas generation by injecting the mixing gases of 80% N2 and 20% CO2, close to flue gas ratio, have showed similar characteristics with that of N2 gas injection. In addition, the generated CO gas concentration was mainly dependent on coal temperature and O2 concentration.

Original languageEnglish
Title of host publicationICMHPC - 2010 International Conference on Mine Hazards Prevention and Control
Pages678-684
Number of pages7
Publication statusPublished - Dec 1 2010
Event2nd International Conference on Mine Hazards Prevention and Control, ICMHPC - Qingdao, China
Duration: Oct 15 2010Oct 17 2010

Publication series

NameICMHPC - 2010 International Conference on Mine Hazards Prevention and Control

Other

Other2nd International Conference on Mine Hazards Prevention and Control, ICMHPC
CountryChina
CityQingdao
Period10/15/1010/17/10

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality

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