Study on the catalytic gasification of alkali lignin over Ru/C nanotubes in supercritical water

WANG Hong-ming; MIAO Rong-rong; YANG Yong; QIAO Yu-hui; ZHANG Qiong-fang; LI Chun-sheng; HUANG Jiang-ping

Volume 43 Issue 10

Oct. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(10): 1195-1201

WANG Hong-ming, MIAO Rong-rong, YANG Yong, QIAO Yu-hui, ZHANG Qiong-fang, LI Chun-sheng, HUANG Jiang-ping. Study on the catalytic gasification of alkali lignin over Ru/C nanotubes in supercritical water[J]. Journal of Fuel Chemistry and Technology, 2015, 43(10): 1195-1201.

Citation:

WANG Hong-ming, MIAO Rong-rong, YANG Yong, QIAO Yu-hui, ZHANG Qiong-fang, LI Chun-sheng, HUANG Jiang-ping. Study on the catalytic gasification of alkali lignin over Ru/C nanotubes in supercritical water[J]. Journal of Fuel Chemistry and Technology, 2015, 43(10): 1195-1201.

Citation:

WANG Hong-ming, MIAO Rong-rong, YANG Yong, QIAO Yu-hui, ZHANG Qiong-fang, LI Chun-sheng, HUANG Jiang-ping. Study on the catalytic gasification of alkali lignin over Ru/C nanotubes in supercritical water[J]. Journal of Fuel Chemistry and Technology, 2015, 43(10): 1195-1201.

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Study on the catalytic gasification of alkali lignin over Ru/C nanotubes in supercritical water

1.
School of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China;
2.
Kunming Coking Gas Ltd, Kunming 650500, China;
3.
Kunming Baoxiang Carbon Black Co., Ltd, Kunming 650500, China

Funds: The project was supported by the National Natural Science Foundation of China (201307049), Yunnan Province, the Introduction of High-end Scientific and Technological Talents Project(2010CI110), Yunnan Major Science and Technology Projects(2012ZB002), Innovztion and Entrepeneurship Training Program for College Students in Yunnan Province about Research Lignite Liquefaction Oil Supercritical Ethanol System(201410674005).

Received Date: 2015-06-01
Rev Recd Date: 2015-07-16
Publish Date: 2015-10-31

Abstract

Abstract

Aiming at the refractory characteristics of alkali lignin, the study on the gasification of alkali lignin in supercritical water was carried out in a batch reactor with Ru/C nanotubes as the catalyst. The effect of temperature, water density, time, concentration of the reactant, catalyst amount on the gasification of alkali lignin was discussed, as well as the catalytic efficiency of the Ru/C catalyst nanotubes. The optimum conditions of the catalytic gasification of alkali lignin on the Ru/C nanotubes obtained with single factor analysis were the reaction temperature of 600 ℃, 0.128 4 g/cm³ water density, 60 min reaction time, 3.0% reactant concentration, catalyst amount of 0.5 g/g (alkali lignin). The results show that during the gasification process of alkali lignin in supercritical water, the high temperature, high water density (or pressure), long reaction time, low reactant concentration and right amount of catalyst will be in favor of the gasification reaction. The alkali lignin gasification efficiency and carbon gasification efficiency reached 73.74% and 56.34% under the optimal reaction conditions, and the hydrogen production capacity was also significantly improved.
- alkali lignin,
- supercritical water,
- gasification efficiency,
- carbon gasification efficiency,
- gasification reaction

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References(23)

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