Whisker carbon formation in catalytic steam reforming of biomass gasification gas

被引：10

作者：

Kihlman, Johanna ^{[1
]}

Kaisalo, Noora ^{[1
]}

Koskinen-Soivi, Mari-Leena ^{[1
]}

Simell, Pekka ^{[1
]}

Niemela, Marita ^{[2
]}

Lehtonen, Juha ^{[2
]}

机构：

[1] Biologinkuja 5,POB 1000, FI-02044 Espoo, Finland

[2] Aalto Univ, Sch Chem Technol, Dept Biotechnol & Chem Technol, Res Grp Ind Chem, POB 16100, Aalto 00076, Finland

来源：

APPLIED CATALYSIS A-GENERAL | 2018年 / 564卷

关键词：

Steam reforming; Whisker carbon; Tar; Nickel catalyst; Biomass gasification; Sulfur; NICKEL-CATALYSTS; FILAMENTOUS CARBON; ALUMINA CATALYSTS; MODEL-COMPOUND; TAR COMPOUNDS; COKE; HYDROCARBONS; KINETICS; REMOVAL; COKING;

D O I：

10.1016/j.apcata.2018.07.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Whisker carbon formation in the steam reforming of biomass gasification gas was studied in a laboratory scale reactor using two commercial nickel catalysts, precious metal catalyst and inert materials. The synthetic feed gas contained ethylene, tar model compounds and H2S as impurities. Whisker carbon was formed below the reaction temperature of 700 degrees C on an calcium-doped nickel catalyst and below 850 degrees C on an undoped nickel catalyst when the feed gas contained no sulfur. With the addition of more than 50 ppmv of H2S in the feed gas, the whisker carbon formation was inhibited. Thermodynamic calculations were carried out to estimate the upper limit temperature for the whisker carbon formation but the calculations did not correlate well with the experimental results. One of the probable explanations for this was the high concentration of unsaturated C2+ hydrocarbons in the feed gas.

引用

页码：133 / 141

页数：9

共 32 条

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