Technical and Economic Analysis of Syngas Production with Carbon Dioxide
A feasibility of synthesis gas(syngas) production with recycled carbon dioxide is investigated by simulation analysis under several conditions and a guideline for how to assess the economic efficiency of carbon dioxide recycle is also proposed. The key idea is to reduce the production cost of the existing steam reforming process by replacing a portion of feedstock, i.e., C4-LPG, with recycled carbon dioxide. An auxiliary unit is installed to convert carbon dioxide to syngas. Reverse water gas shift (RWGS) reactor, carbon dioxide reforming, direct carbon dioxide feeding and combination of two of these units are chosen as auxiliary unit for carbon dioxide conversion to carbon monoxide. Excess for this unit, any other utilities like separation process are not newly added in order to minimize the capital investment. For installation of each auxiliary unit, the economic analysis is performed with consideration of energy, mass balances and physical constraints like maximum separation capacity of the steam reforming process. As a result of the economic analysis, it is suggested that the combination of carbon dioxide reforming and direct carbon dioxide feeding can be the best for syngas production with recycled carbon dioxide.
c arbon dioxide recycle synthesis gas optimization
Jehun Park In-Hyoup Song Young-Sub Lim Chonghun Han
Department of Chemical and Biological Engineering,Seoul National University,Seoul,151-744,Korea
国际会议
西安
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）