Experimental investigation on gasification characteristic of food waste using supercritical water for combustible gas production: Exploring the way to complete gasification

Chen, Jingwei; Fan, Yi; Xin, Zhao; Jiaqiang, E; Xu, Wenwen; Zhang, Feng; Liao, Gaoliang; Leng, Erwei; Liu, Shuai

doi:10.1016/j.fuel.2019.116735

Cited by 66 publications

(35 citation statements)

References 65 publications

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“…The order of effect may be influenced by the range of operating conditions, reaction configurations, and the type of biomass studied. 28 …”

Section: Results and Discussionmentioning

confidence: 99%

“…The most critical variable found was the temperature, followed by the reaction time and the microalgal biomass loading. A similar parametric optimization study using the RSM was conducted 28 while studying the SCW gasification of food waste in the literature. The authors found a different order of rank of the significance of different factors, starting with the temperature followed by the residence time and finally the feed concentration.…”

Section: Introductionmentioning

confidence: 99%

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Sub- and Supercritical Water Gasification of Rice Husk: Parametric Optimization Using the I-Optimality Criterion

et al. 2021

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In this study, rice husk biomass was gasified under sub- and supercritical water conditions in an autoclave reactor. The effect of temperature (350–500 °C), residence time (30–120 min), and feed concentration (3–10 wt %) was experimentally studied using the response surface methodology in relation to the yield of gasification products. The quadratic models have been suggested for both responses. Based on the models, the quantitative relationship between various operational conditions and the responses will reliably forecast the experimental outcomes. The findings revealed that higher temperatures, longer residence times, and lower feed concentrations favored high gas yields. The lowest tar yield obtained was 2.98 wt %, while the highest gasification efficiency and gas volume attained were 64.27% and 423 mL/g, respectively. The ANOVA test showed that the order of the effects of the factors on all responses except gravimetric tar yield follows temperature > feed concentration > residence time. The gravimetric tar yield followed a different trend: temperature > residence time > feed concentration. The results revealed that SCW gasification could provide an effective mechanism for transforming the energy content of RH into a substantial fuel product.

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“…The order of effect may be influenced by the range of operating conditions, reaction configurations, and the type of biomass studied. 28 …”

Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sub- and Supercritical Water Gasification of Rice Husk: Parametric Optimization Using the I-Optimality Criterion

et al. 2021

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“…An experimental study on cornstalk gasification in SCW, carried out in the temperature range of 500-800 • C, a reaction time of 1-15 min and a feedstock concentration of 1-9%, has shown that the carbon gasification efficiency reaches 99% at the temperature of 700 • C, reaction time of 15 min and biomass concentration of 3% [74]. A parametric research on supercritical water gasification of food waste conducted with a micro quartz tube batch reactor (Figure 3), demonstrated that the complete gasification can be basically realized with a carbon gasification efficiency of 98% at a temperature of 850 • C, a concentration of 5 wt% and residence time of 10 min [75].…”

Section: Gasificationmentioning

confidence: 99%

Main Hydrogen Production Processes: An Overview

et al. 2021

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Due to its characteristics, hydrogen is considered the energy carrier of the future. Its use as a fuel generates reduced pollution, as if burned it almost exclusively produces water vapor. Hydrogen can be produced from numerous sources, both of fossil and renewable origin, and with as many production processes, which can use renewable or non-renewable energy sources. To achieve carbon neutrality, the sources must necessarily be renewable, and the production processes themselves must use renewable energy sources. In this review article the main characteristics of the most used hydrogen production methods are summarized, mainly focusing on renewable feedstocks, furthermore a series of relevant articles published in the last year, are reviewed. The production methods are grouped according to the type of energy they use; and at the end of each section the strengths and limitations of the processes are highlighted. The conclusions compare the main characteristics of the production processes studied and contextualize their possible use.

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“…In terms of hydrogen production, most of the existing hydrogen production technologies rely on primary energy sources such as coal and natural gas, and the economic and environmental problems are still prominent. Although the Hydrogen production and power generation system with zero net CO2 emission based on coal and supercritical water gasification proposed by Guo and Jin [1] effectively reduces carbon emissions, it is still considered to be pollution-prone to some extent [2]. The use of nuclear energy and biomass gasification to produce hydrogen is not yet mature, and the use of renewable energy such as solar energy or wind energy has low efficiency and high comprehensive cost [3][4].…”

Section: Large-scale Commercial Applicationmentioning

confidence: 99%

Challenges and Policy Suggestions on the Development of Hydrogen Economy in China

Shan

Wang

2020

E3S Web Conf.

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In recent years, with the intensification of environmental damage, mankind is at a crossroads towards the next energy revolution. Hydrogen energy, because of its pollution-free nature, has become the focus of technological research and development in many countries, and the economic pattern around it is taking shape China’s investment in the field of new energy has been increasing in recent years, and the prospect of hydrogen economy has prompted China to continuously increase the development of hydrogen energy. However, it faces many obstacles, both technical and social. The Chinese government is now using financial subsidies to help hydrogen companies incubate. However, with the development of the industry, China is currently facing great obstacles in large-scale commercial application, intellectual property protection and innovation, standardization construction and social confidence. This paper believes that policy measures such as selective commercial distribution, innovation system building, industry standardization construction and social education can be adopted to help solve these challenges

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Experimental investigation on gasification characteristic of food waste using supercritical water for combustible gas production: Exploring the way to complete gasification

Cited by 66 publications

References 65 publications

Sub- and Supercritical Water Gasification of Rice Husk: Parametric Optimization Using the I-Optimality Criterion

Sub- and Supercritical Water Gasification of Rice Husk: Parametric Optimization Using the I-Optimality Criterion

Main Hydrogen Production Processes: An Overview

Challenges and Policy Suggestions on the Development of Hydrogen Economy in China

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