초단열 압축 점화 개질기를 이용한 수소 생산 연구

Abstract

Recently, various technologies have been devised to convert methane, a main ingredient of natural gas and biogas, into hydrogen as part of efforts to develop new low pollution energies and reduce greenhouse gases. This study, different from existing methods of reformation, suggests a new form of a partial oxidation compression ignition reformer, to which the concept of ultra-adiabatic combustion is applied. In addition, the study also conducts tests by variables about the oxygen/methane ratio, the total flow rate, the intake preheating temperature and the oxygen enrichment ratio, all of which affect the production of hydrogen, in order to understand the optimal feature of the reformer’s movement. Results showed that the concentration of hydrogen and carbon monoxide was 20.84% and 13.36%, respectively, under the optimal standard condition of oxygen/methane ratio (0.26), total flow rate (106.5 L/min) and intake preheating temperature (355℃). Under the same condition, the density of hydrogen became 20.31% when the oxygen enrichment ratio was 55.6%, while that of carbon monoxide became 20.85% when the oxygen enrichment ratio was 50.33%.