(Invited) Mixed Protonic-Electronic Membrane Reactors; Converting Hydrocarbon Resources and CO_2 to Fuels

摘要

Membrane reactor technology holds the promise to circumvent thermodynamic equilibrium limitations by in-situremoval of product species, resulting in improved chemical yields. Recent advances in mixed-conducting oxide-membrane technology present the possibility for a dramatic reduction in the cost of converting petroleum, coal and biomass derived feed stocks to hydrogen and other "value added" hydrocarbons. We have developed novel membrane reactor technology, based on high temperature proton conductors, that can convert a wide range of hydrocarbons to pure H_2, and syngas for synthesis of liquid fuels and chemical feed stocks. By simultaneous H_2 permeation and catalysis, we have demonstrated the ability to increase water gas shift yields >70% over thermodynamic limitations. Similarly, we have demonstrated increases in steam reforming yields, and the ability to reform CH_4 with CO_2.