The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4 -CO 2 reforming

2010, Volume 4, Issue 2

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Frontiers of Chemical Science and Engineering >> 2010, Volume 4, Issue 2 doi: 10.1007/s11705-009-0242-1

The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4 -CO 2 reforming

Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;

Available online: 2010-06-05

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Abstract

A kind of new catalyst—carbonaceous catalyst—for CH-CO reformation has been developed in our laboratory. The effect of both oxygen-bearing functional group such as phenolic hydroxyl, carbonyl, carboxyl, and lactonic, and ash such as FeO, NaCO, and KCO in the carbonaceous catalyst on the CH-CO reforming has been investigated with a fixed-bed reactor. It has been found that the carbonaceous catalyst is an efficient catalyst on CO-CH reforming. With the decrease of oxygen-bearing functional group, the catalytic activity of carbonaceous catalyst decreases quickly. The oxygen-bearing functional groups play a significant role in the carbonaceous-catalyzed CO-CH reforming; the ash components in carbonaceous catalyst also have an important influence on the CO-CH reforming. FeO, NaCO, and KCO in the ash can catalyze the CO-CH reforming reaction; CaO has little effect on CO-CH reforming reaction. CaO can catalyze the gasification between carbonaceous catalyst and CO; AlO and MgO inhibit the CO-CH reforming.

Keywords

oxygen-bearing functional ; carboxyl ; phenolic hydroxyl ; CH-CO reformation ; CO-CH reforming

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