摘要
用储氧材料中的晶格氧代替分子氧部分氧化甲烷制合成气,并以空气、H2O或CO2为氧源对失去晶格氧的储氧材料进行氧化再生,是一种通过气固反应制取合成气的新工艺,具有较高经济效益和环境效益。本文综述了该技术在储氧材料和反应体系等方面的研究进展,并从合成气和金属联产工艺以及熔融盐储能的研究思路中得出了一些启示,对该技术今后的研究重点和应用领域进行了展望。
According to the redox mode, the partial oxidation of methane to synthesis gas using lattice oxygen of oxygen storage compound （OSC） instead of molecular oxygen could be implemented as follows： the synthesis gas is directly produced through the gas-solid reaction between methane and OSC, and the reduced OSC is re-oxidized by air, H2O or CO2 to restore its initial state. Since the reaction occurred between methane and lattice oxygen in the absence of gas-phase oxygen, the non-selective oxidation could be inhibited and a high selectivity of product could be obtained. Also, this process can keep from the risk of explosion and does not need the pure oxygen supply. Obviously, this new technology is very useful for improving environment and enhancing economic benefit. In this paper, the process in partial oxidation of methane to synthesis gas using lattice oxygen is reviewed, the focus about the new technology is on the development of OSC and reaction systems. We also mention the process of co-production of metal and synthesis gas and the technology of molten salt storage for solar power, then, the future study direction and the applications of this new technology are discussed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2008年第9期1306-1314,共9页
Progress in Chemistry
基金
国家自然科学基金项目(No.50574046
50164002)
国家自然科学基金重大研究计划(No.90610035)
云南省自然科学基金项目(No.2004E0058Q)
教育部高校博士学科点专项科研基金项目(No.20040674005)资助
关键词
甲烷
晶格氧
合成气
储氧材料
部分氧化
合成气/金属联产
methane
lattice oxygen
synthesis gas
oxygen storage compounds （OSC）
partial oxidation
metal/synthesis gas co-production
