High-yield hydrogen production from glucose by supercritical water gasification without added catalyst

Susanti, Ratna Frida; Dianningrum, Laras W.; Yum, Taewoo; Kim, Yunje; Lee, Byung Gwon; Kim, Jae-Hoon

doi:10.1016/j.ijhydene.2012.05.087

Cited by 137 publications

(65 citation statements)

References 63 publications

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“…Nanda et al (2016b) probed the influence of nickel-laden feedstocks gasified in sub-and supercritical water conditions at varying temperatures, water-to-biomass ratios, pressures, and residence times, and thence found that nickel-laden biomasses yielded more hydrogen that non-catalytic ones with the optimal conditions for gasification observed at 500°C, a water-to-biomass ratio of 10 at 45 min and 23-25 MPa. Susanti et al (2012) assessed supercritical water gasification of glucose in an updraft gasifier reactor under different temperatures, reaction time, feed concentration, and without a catalyst, and showed that the total gas and hydrogen yields increased with increasing temperatures. Moreover, the highest yields were achieved at 740°C and 1.8 wt.% of feed for 60 s, and carbon efficiency of 91% was recorded.…”

Section: Tablementioning

confidence: 99%

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

et al. 2017

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Please cite this article as: Lachos-Perez D., Brown A.B., Mudhoo A., Martinez J., Timko M.T., Rostagno M.A., Forster-Carneiro T. Subcritical and supercritical water extraction, hydrolysis, gasification and carbonization of biomass: a critical review. Biofuel Research Journal 14 (2017) HIGHLIGHTSØAdvances of research trends in development of subcritical and supercritical water processes technologies are reviewed.Essential aspects of sub-and supercritical water applied to extraction, hydrolysis, carbonization and gasification processes are discussed. ØEquipment design, process parameters, and types of biomass used for sub-and supercritical water process are presented. ØBioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of sub-and supercritical water processes. This review summarizes the recent essential aspects of subcritical and supercritical water technology applied to the extraction, hydrolysis, carbonization, and gasification processes. These are clean and fast technologies which do not need pretreatment, require less reaction time, generate less corrosion and residues, do not use toxic solvents, and reduce the synthesis of degradation byproducts. The equipment design, process parameters, and types of biomass used for subcritical and supercritical water process are presented. The benefits of catalysis to improve process efficiency are addressed. Bioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of subcritical and supercritical water processes. The present review also revisits advances of the research trends in the development of subcritical and supercritical water process technologies. GRAPHICAL ABSTRACT ARTICLE INFO ABSTRACT

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Section: Tablementioning

confidence: 99%

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

et al. 2017

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“…The mechanism of biomass gasification in supercritical water has been studied, but biomass conversion in this media is complicated and hard to explain (Susanti et al 2012). Despite these difficulties, this process can be summarized in the three main reactions of steam gasification (1), water-gas shift (2), and methanation (3), as follows:…”

Section: Ligninmentioning

confidence: 99%

Hydrothermal Gasification Performance of Iranian Rice Straw in Supercritical Water Media for Hydrogen-Rich Gas Production

Salimi¹,

Nejati²,

Karimi³

et al. 2016

BioResources

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aAs a clean and green alternative fuel to replace fossil fuels, hydrogen could be an ideal fuel for the future. Supercritical water gasification of lignocellulosic agricultural residues results in H2 production with zero CO2 emission, which makes this technique an attractive technology for hydrogen generation from biomass. Structural analyses were performed to determine the lignin, cellulose, and hemicellulose contents in feedstock. The effects of different process variables (temperature, reaction time, and feed concentration) on supercritical water gasification of Iranian rice straw (IRS) were evaluated. IRS, which has a high content of cellulose and hemicellulose, has significant potential for gaseous product generation under the supercritical water condition. The maximum H2 production of 5.56 mmol/gr of biomass was achieved at 440 °C (temperature), 20 min (reaction time), and 2 wt. % (feed concentration).

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“…The dielectric constant of water reduces to a very low value when water reaches its supercritical condition, which leads to the ability to dissolve organic compounds [3]. The overall heat transfer during the conversion process also increases when organics dissolve in water and becomes a homogenous solution [4] [5]. As the water fraction in wet biomass is used in the conversion reactions in SCWG, it eliminates the need for drying, which is a considerable advantage in terms of energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

An Energy Analysis on Gasification of Sewage Sludge by a Direct Injection in Supercritical Water

Yukananto¹,

Louwes²,

Bramer³

et al. 2017

AJAC

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Supercritical Water Gasification is an efficient technology in converting wet biomass into H 2 and CH 4 in comparison to other conventional thermochemical processes. Coke deposition, however, remains as a major challenge in this technology. Coke formation is the result of polymerization reactions that take place at sub-critical conditions. Directly injecting the relatively unheated wet biomass feed into supercritical water increases the heating rate and reduces the residence time of the feed in the sub-critical condition. This leads to a minimized coke formation in the process. However, a non-isothermal mixing takes place during this direct injection that is less energy-efficient. In addition, the biomass feedstream experiences less pre-heating that means less heat recovery from the product gas. These two aspects might reduce the overall process performance. Parametric studies of key operating parameters, such as operating temperature, dry matter content, bypass water ratio and heat exchanger effectiveness, are carried out to investigate the influence of direct injection to the thermal efficiency of the system. Subsequently, optimization using pinch analysis is conducted to the system with direct injection. Finally, an operating window for optimum performance of the optimized direct injection gasification system is proposed.

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High-yield hydrogen production from glucose by supercritical water gasification without added catalyst

Cited by 137 publications

References 63 publications

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

Hydrothermal Gasification Performance of Iranian Rice Straw in Supercritical Water Media for Hydrogen-Rich Gas Production

An Energy Analysis on Gasification of Sewage Sludge by a Direct Injection in Supercritical Water

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