Hydrothermal gasification of sorbitol: H2 optimisation at high carbon gasification efficiencies

Paida, V.R.; Brilman, Wim; Kersten, Sascha R.A.

doi:10.1016/j.cej.2018.10.008

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…The RSM experiment was conducted to determine the optimal temperature, solvent to waste and catalyst level proportion for producing bio-oil and H2 in the liquefaction and gasification processes, correspondingly. Temperatures of 300-456 °C, catalyst concentrations of 2-6%, and solvent to trash weight ratios of 20-60 mL/g are among the factors employed in RSM [22]. With 30 runs, CCD tests for both the and HTG processes were examined to determine the best parameters for bio-oil and hydrogen output.…”

Section: Optimization Of Htl and Htg Processes By Rsmmentioning

confidence: 99%

Studies on Influence of Process Parameters in Upgradation of Bio-oil Derived from HTL of Domestic household waste: Application of Response Surface Methodology

2022

Global NEST: The International Journal

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<p>This research focuses on hydrothermal gasification (HTG) and hydrothermal liquefaction (HTL) studies to produce bio-hydrogen from domestic mixed waste. HTG and HTL studies were studied at temperatures of 300–450°C and 300–400°C, correspondingly, with a catalyst level of 6 wt %. The sol-gel technique was used to make the Bentonite/Nb-TiO2 catalyst. For a solvent-waste proportion of 14 millilitre/gram, an C2H5OH - water proportions of 2:2, and a period of one-hour, maximum H2 output from HTL was 30 wt % (catalyst loads: 4 wt %) and HTG was 40 wt % (catalyst loads: 5 wt %). As C2H5OH acts as half-solvent and ideal solvent to bio-mass capacity it shot up H2 result in the HTG procedure by methanation, gas water shift and improving responses in the organization. The second output of the HTL procedure was bio-oil, which yielded 35 wt % with O/C as well as H/C standards of 1.2 and 1.0, respectively, and an HHV of 42 Mega Joule/kilogram. In the HTL system, mechanistic procedures such depolymerization, hydration, reduction, and hydrolysis generated in a larger proportion of gaseous product. Thermal and the solvent-to-waste proportion is the ideal factors in the H2 synthesis procedure, according to experimental analysis. Energy nexuses from domestic mixed trash are taken over in this research.</p>

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Section: Optimization Of Htl and Htg Processes By Rsmmentioning

confidence: 99%

Studies on Influence of Process Parameters in Upgradation of Bio-oil Derived from HTL of Domestic household waste: Application of Response Surface Methodology

2022

Global NEST: The International Journal

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“…Sequential Pt-Ru catalysts for increased productivity | 89 higher using a Pt catalyst. This information is also tabulated in Table C achieved in our previous work [141]. From The complete carbon gasification (> 99 %) obtained at a WHSV c of 0.67 h -1 (Run # 11) is in the range of WHSV c 's studied in previous work with wet biomasses using a Ru catalyst [42,142].…”

Section: Sequential Pt-ru Catalysts For Increased Productivity | 87mentioning

confidence: 75%

“…The advantage of using a sequential combination of Pt-Ru is also illustrated in 270 °C [141] 290 °C [141] 310 °C [141] 350 °C [141] 290 °C [141] 265 °C [107] 225 °C [112] 250 °C [143] This work: 300 °C; Pt+Ru Sequential Pt-Ru catalysts for increased productivity | 91…”

Section: Discussionmentioning

confidence: 99%

“…Although such catalysts have been found to improve reactivity and reaction rates, this comes at the cost of reduced H 2 production due to its consumption in the formation of methane [140]. Studies on improving the H 2 yield using a microchannel reactor or N 2 as a stripping agent have shown that it is possible to achieve higher yields of H 2 by stripping it out of the reactor before it can be consumed in side reactions [120,141]. By combining this with the use of a bi-metallic Pt-Ru catalyst, a higher reactivity and a neutral effect in terms of H 2 production were obtained [120].…”

Section: Effect Of Residence Timementioning

confidence: 99%

“…gasification over a platinum catalyst), a path lumped model was developed based on experimental results to describe the conversion of sorbitol to gases in a temperature range of 270 -350 °C[141]. This model developed in Matlab 2017a was used to determine the yields of H 2 and CO 2 produced at 300 °C using a design constraint of > 95 % carbon conversion to gas.…”

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confidence: 99%

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