Copper-containing cerium oxide materials are shown in this work to be suitable for the high-temperature water-gas shift (WGS) reaction integrated with hydrogen separation in a membrane reactor to generate pure hydrogen. Copper-ceria is a stable high-temperature shift catalyst, unlike iron-chrome catalysts that deactivate severely in CO2-rich gases. Such gas mixtures will prevail if a catalytic membrane reactor is used to remove hydrogen.

Cu/ZnO catalysts(with a Cu/Zn atomic ratio of 30/70) have been prepared by high intensity mechanical mixing of copper and zinc oxide powder in air and under vacuum. During milling in vacuum gradual amorphisation and the constituents occurs, as evidenced by broadening of the Cu0 and ZnO diffraction peaks in XRD, but the two original phases remain. The result of such treatment is a catalyst with low BET area and low Cu metal surface area. Consequently, the activity of the vacuum milled samples in batch methanol production from synthesis gas (CO/CO2/H2=20/5/75) at 50 bar and 250℃ is low.

Production of pure hydrogen from various gas mixtures by using Pressure Swing Adsorption (PSA) has become the state-of-the-art industrial technology. Recent ideas to increase a separation quality (product purity/recovery) and to decrease power requirements, such as the specially designed PSA processes for simultaneous production of pure H2 and CO2 from steam methane reforming off-gas (SMROG), have attracted an increasing interest.

A comparative study on the activity of bimetallic Pt/M/CeZrO4(M=Na, Mo, Sn, Cu, Zn) catalysts is presented. The catalysts were prepared by wet impregnation method, by loading separately the two metals, with a Pt/M molar ration of 1.

Cobalt-molybdenum catalysts supported on γ-Al2O3 are well known for their success in the hydrotreating of petroleum feedstocks and coal liquifaction products. Their surface structure has been studied by several methods including recent attempts by surface science techniques.

Many millions of tons of Methanol are produced by the Chemical Industry every year. Methanol is the lowest member of a group of organic chemicals that belong to the Alcohol “family”.