1. Effect of biomass char on microwave-assisted CH4/CO2 reforming.
- Author
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LI Long-zhi, SONG Zhan-long, MA Chun-yuan, WANG Fu-mao, WANG Yu-lei, and YAN Yu-kun
- Abstract
In order to investigate catalytic performance of bio-char on microwave-assisted CH4/CO2 reforming, different bio-chars were obtained through change of biomass material, adjustment of char-making temperature, and deashing of raw materials. And then various bio-chars were served as catalysts for CH4 reforming reaction in a fixed bed reactor,to study catalytic effect of different bio-chars on the conversions of reactant gases. The results show that the metal oxide contained in bio-char can not only impose catalytic effect on CH4/CO2 reforming, but also can affect the response of bio-char to microwave. As a result,the metal oxide content in bio-char is determinant for its catalytic activity. The conclusion reached above was confirmed by the catalytic effect of deliming bio-char on CH4/CO2 reforming. In addition, the surface area and pore characteristics of bio-char also play a role in the catalytic performance of bio-char. Bio-char was mixed evenly with different additives to examine the influence of additives on bio-char catalytic properties. The results reveal that the bio-chars mixed with Na2CO3 or K2CO3 can bring an increase in CO2 conversion as well as a decrease in CH4 conversion. An improvement in catalytic performance of char was observed because of the introduction of MgO,CaO oi NiO. Finally,the addition of SiO2 was demonstrated to be unfavorable for the reforming reaction. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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