Hydrogen production by biomass gasification in supercritical water: A parametric study

Lu, Youjun; Guo, Liejin; Ji, C.M.; Zhang, X.M.; Hao, Xiaohong; Yan, Qiu Hui

doi:10.1016/j.ijhydene.2005.08.011

Cited by 333 publications

(197 citation statements)

References 29 publications

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“…When biomass feed input is increased during gasification, the process leads to improved production capacity; however, when feed input is excessively increased, it also leads to higher gas yield that may result in low gas quality created by increased tar yield [26]. The influence of varied feed input on gasification efficiency during torrefied sugarcane bagasse gasification is presented in Fig.…”

Section: Influence Of Feed Input On Gasification Efficiencymentioning

confidence: 99%

“…Torrefaction reduces the -OH groups contained in the structure of biomass and leads to increased torrefied biomass hydrophobic characteristics that make the material more susceptible to igniting faster, thereby allowing heat to easily spread over the entire gasifier area by convection [16,32]. High temperature of input air is conducive to the production of a gas rich in carbon monoxide and hydrogen with increased heating value, a condition that translates into high gasification efficiency during gasification [26,33].…”

Section: Influence Of Temperature Of Input Air On Gasification Efficimentioning

confidence: 99%

See 1 more Smart Citation

Assessment of the Influence of Torrefied Biomass Physical Characteristics, Design and Operating Variables on Gasification Efficiency

Anukam¹,

Mamphweli²,

Reddy³

et al. 2016

JCCE

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Gasification efficiency is an important factor that determines the actual technical operation as well as the economic viability of using a gasifier system for energy production. In this study, the impact of the physical properties of torrefied bagasse and the influence of gasifier design and operating variables were investigated in a computer simulated downdraft gasification system. Results obtained from the study indicated an interrelationship between feedstock characteristics, especially with regard to feed size, design variables such as throat angle and throat diameter as well as gasifier operating conditions such as temperature of input air and feed input. These variables influenced the efficiency of the gasification process of sugarcane bagasse because of increased enhancement of combustion zone reactions, which liberated huge amount of heat that led to a rise in the temperature of the gasification process. This condition also created increased tar cracking within the gasification system, contributing to reduction in the overall yield of tar.

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Section: Influence Of Feed Input On Gasification Efficiencymentioning

confidence: 99%

Section: Influence Of Temperature Of Input Air On Gasification Efficimentioning

confidence: 99%

Assessment of the Influence of Torrefied Biomass Physical Characteristics, Design and Operating Variables on Gasification Efficiency

Anukam¹,

Mamphweli²,

Reddy³

et al. 2016

JCCE

View full text Add to dashboard Cite

show abstract

“…The anaerobic organic wastewater from wheat straw includes acids (acetic acid, butyric acid) and ethanol etc. The gasification of anaerobic organic wastewater in supercritical water was investigated with a continuous operation tube flow reactor system (Ji 2006). The details of the reactor system were described in our previous report .…”

Section: Organic Wastesmentioning

confidence: 99%

Supercritical Water Gasification of Biomass and Organic Wastes

Guo¹,

Chen²,

Lu³

2010

Biomass

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“…Lu et al investigated the gasification of many agricultural residues in 25 MPa and 650°C. It was seen that wheat straw, sorghum stalk and corn cub had higher gasification efficiencies with lower amounts of lignin compared with others [22,23]. Madenoglu et al gasified tobacco stalk and cotton stalk in supercritical water media using stainless steel batch reactor.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal gasification of different agricultural wastes in supercritical water media for hydrogen production: a comparative study

et al. 2016

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Conversion of different agricultural residues including almond shell, walnut shell, barley straw, canola stalk, rice straw and wheat straw to hydrogen-rich gas was performed via gasification in supercritical water media in a determined condition. Elemental characterization was performed using CHNSO analyzer. Besides, cellulose and lignin contents in biomass structure were determined according to TAPPI test methods T264cm-97 and T222om-02, respectively. The correlations between the yields of the product gas components with C/H/O ratio in the initial forms of used feedstocks were investigated. In addition, the relation between the components of biomass structure with the yields of main gaseous products was also studied for each feedstock. The maximum hydrogen yield of 8.38 mmol/g was observed for barley straw which has the highest H percentage of 6.5 wt%. Canola stalk with the highest C/H ratio showed the highest total gas yield of 25.3 mmol/g. Canola stalk with highest amount of cellulose and hemicellulose of 67.42 % had the highest CGE of 45 % and barley straw had the highest HGE of 20 %. Higher C/H value and lower oxygen percentage in the initial form of feedstocks resulted in higher total gas and CO 2 yields and lower hydrogen yields. Lignin content in the initial form of the feedstocks was inversely proportional with total gas yields whereas cellulose content showed a straight relation with the total gas yield.

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Hydrogen production by biomass gasification in supercritical water: A parametric study

Cited by 333 publications

References 29 publications

Assessment of the Influence of Torrefied Biomass Physical Characteristics, Design and Operating Variables on Gasification Efficiency

Assessment of the Influence of Torrefied Biomass Physical Characteristics, Design and Operating Variables on Gasification Efficiency

Supercritical Water Gasification of Biomass and Organic Wastes

Hydrothermal gasification of different agricultural wastes in supercritical water media for hydrogen production: a comparative study

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