Hydrogen rich gas production via supercritical water gasification of sugarcane bagasse using unpromoted and copper promoted Ni/CNT nanocatalysts

Rashidi, Masih; Tavasoli, Ahmad

doi:10.1016/j.supflu.2015.01.008

Cited by 55 publications

(20 citation statements)

References 30 publications

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“…However, SB loading did not support H 2 production. Cao et al and Rashidi et al reported temperature as the most significant experimental parameter when gasifying SB followed by residence time, whereas increasing SB loading decreased H 2 concentration in gaseous products [5,62]. This infers that the reaction temperature and residence time are the most crucial parameters that support the total gas and H 2 yield in SB gasification.…”

Section: Statistical Optimization Of Gaseous Productmentioning

confidence: 91%

Parametric gasification process of sugarcane bagasse for syngas production

Raheem

Zhao

Dastyar

et al. 2019

International Journal of Hydrogen Energy

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Section: Statistical Optimization Of Gaseous Productmentioning

confidence: 91%

Parametric gasification process of sugarcane bagasse for syngas production

Raheem

Zhao

Dastyar

et al. 2019

International Journal of Hydrogen Energy

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“…As mentioned, methanation consumes hydrogen and water-gas shift produces hydrogen. So, it is obvious that we should advance the reactions to avoid methanation and accelerate water-gas shift when hydrogen-rich gas is required [40].…”

Section: Reaction Mechanismsmentioning

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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“…Some agro-food residues that have been studied elsewhere on dry or wet basis under supercritical water gasification are fruit pulp, peach scrap, aloe vera rind, coconut shell, sugarcane bagasse, malt spent grains, biooil, food waste, and peel from banana, lemon, orange, or pineapple. In certain applications, those biomasses were gasified under activated carbon, Ru/C, K 2 CO 3 , NaOH, KHCO 3 , Na 2 CO 3 , KOH, FeCl 3 and nickel-base materials as catalysts, even dosing additives in food waste feedstocks [19][20][21][22][23][24][25][26][27][28][29][30]. For the best of our knowledge, Silveira-Junior et al have recently carried out fast pyrolysis from seed guava in the range of 623.15-873.15 K focused on levoglucosan.…”

Section: Introductionmentioning

confidence: 99%

Gasification of Psidium guajava L. Waste Using Supercritical Water: Evaluation of Feed Ratio and Moderate Temperatures

et al. 2021

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Biomass waste, as raw material for renewable energy, is an attractive alternative since it does not compete with human food supply. An emerging alternative for its treatment is supercritical water gasification (SCWG), due to the high moisture content of some types of biomass. On this regards, guava fruit (Psidium guajava L.) is one of the most wasted agro-food products in Mexico. This motivated us to evaluate gasification of guava waste on dry biomass base under supercritical water conditions for the first time, with the aim of analyzing the impact of moderate temperatures and feed ratios as reaction parameters on gas products. Temperature was varied in the range of 673.15–773.15 K and using a batch reactor loaded with biomass:water (B:W) mass ratios of 1:1, 1:4, and 1:6. Furthermore, the obtained solid, liquid, and gas phase products were characterized. Hydrogen (H2), carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), ethane (C2H6), propane (C3H8), and butane (C4H10) were identified in gas phase and quantified by means of a gas chromatograph equipped with a TCD detector. Liquid and solid phase products were subjected to Fourier Transform Infrared spectroscopy analyses. This preliminary research indicated that high temperature operation and high biomass:water mass ratio enhanced gas yields (mol/kg) of about 4.137 for CH4, 6.705 for CO2, and 7.743 for H2; whereas the selectivity and gas efficiency for hydrogen was 65.26% and 58.94%, respectively.

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Hydrogen rich gas production via supercritical water gasification of sugarcane bagasse using unpromoted and copper promoted Ni/CNT nanocatalysts

Cited by 55 publications

References 30 publications

Parametric gasification process of sugarcane bagasse for syngas production

Parametric gasification process of sugarcane bagasse for syngas production

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

Gasification of Psidium guajava L. Waste Using Supercritical Water: Evaluation of Feed Ratio and Moderate Temperatures

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