Supported Rh nanoparticles on CaO-SiO2 binary system for the dry reforming of methane in membrane reactors

S. GONZALEZ CARRAZÁN; B. FAROLDI; J. MÚNERA; L. CORNAGLIA

Pittsburgh, Pennsylvania

Congreso; 24th North American Catalysis Society Meeting (24th NAM); 2015

North American Catalysis Society

Given the low prices of natural gas and the discovery of abundant shale gas reserves, natural gas is replacing crude oil as a source of energy supply, thus decreasing the dependence on the declining reserves of the latter. The conversion of methane to synthesis gas and hydrogen has been widely studied. Among methane reforming reactions, the so-called dry reforming with carbon dioxide is an interesting alternative to obtain H2 in membrane reactors. When the La-Si support is used for Rh formulations, they are catalytically stables and do not produce carbonaceous residues [1]. The aim of this work is to develop a catalyst with high activity, low carbon deposition, and high hydrogen yield. Among the basic promoters, Ca is an interesting alternative because it can be simply produced from low-cost starting materials. In addition, the Rh loading was optimized employing different precursor salts. The effect of the operation variables upon the performance of the membrane reactor for hydrogen production was also studied.