Industrialization prospects for hydrogen production by coal gasification in supercritical water and novel thermodynamic cycle power generation system with no pollution emission

Jin, Hui; Ge, Zhiwei; Lu, Youjun; Chen, Cao

doi:10.1007/s11431-015-5967-0

Cited by 94 publications

(27 citation statements)

References 130 publications

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“…This occurs because in normal conditions of temperature the water presents hydrogen bonds very well grouped, which in the supercritical state break, reducing the value of its dielectric constant. The high diffusivity improves the transfer of mass in the process of gasification in conditions existing in supercritical water, and can easily be accessed through the porosity of the biomass, allowing quick reaction time in the gasification process (Guo et al, 2015). The gasification of model molecules namely glucose and cellulose in supercritical water provides information of the reaction mechanisms through a series of complex chemical reactions that react with each other.…”

Section: Subcritical and Supercritical Water Processingmentioning

confidence: 99%

A review of research trends in the enhancement of biomass-to-hydrogen conversion

et al. 2018

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Different types of biomass are being examined for their optimum hydrogen production potentials and actual hydrogen yields in different experimental setups and through different chemical synthetic routes. In this review, the observations emanating from research findings on the assessment of hydrogen synthesis kinetics during fermentation and gasification of different types of biomass substrates have been concisely surveyed from selected publications. This review revisits the recent progress reported in biomass-based hydrogen synthesis in the 2 associated disciplines of microbial cell immobilization, bioreactor design and analysis, ultrasound-assisted, microwave-assisted and ionic liquid-assisted biomass pretreatments, development of new microbial strains, integrated production schemes, applications of nanocatalysis, subcritical and supercritical water processing, use of algae-based substrates and lastly inhibitor detoxification. The main observations from this review are that cell immobilization assists in optimizing the biomass fermentation performance by enhancing bead size, providing for adequate cell loading and improving mass transfer; there are novel and more potent bacterial and fungal strains which improve the fermentation process and impact on hydrogen yields positively; application of microwave irradiation and sonication and the use of ionic liquids in biomass pretreatment bring about enhanced delignification, and that supercritical water biomass processing and dosing with metal-based nanoparticles also assist in enhancing the kinetics of hydrogen synthesis. The research areas discussed in this work and their respective impacts on hydrogen synthesis from biomass are arguably standalone. Thence, further work is still required to explore the possibilities and techno-economic implications of combining these areas for developing robust and integrated biomass-to-hydrogen synthetic schemes.

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Section: Subcritical and Supercritical Water Processingmentioning

confidence: 99%

A review of research trends in the enhancement of biomass-to-hydrogen conversion

et al. 2018

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“…Human welfare has been promoted by continued economic growth, which is accounted for by mechanization and industrialization. However, increasing income and wealth would cause ecological problems, since natural resources are used as inputs of several products, and the pollution of the environment is directly linked to the production scale [1,2]. Water shortage is one of the problems caused by global industrialization.…”

Section: Introductionmentioning

confidence: 99%

A Review on Reverse Osmosis and Nanofiltration Membranes for Water Purification

et al. 2019

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Sustainable and affordable supply of clean, safe, and adequate water is one of the most challenging issues facing the world. Membrane separation technology is one of the most cost-effective and widely applied technologies for water purification. Polymeric membranes such as cellulose-based (CA) membranes and thin-film composite (TFC) membranes have dominated the industry since 1980. Although further development of polymeric membranes for better performance is laborious, the research findings and sustained progress in inorganic membrane development have grown fast and solve some remaining problems. In addition to conventional ceramic metal oxide membranes, membranes prepared by graphene oxide (GO), carbon nanotubes (CNTs), and mixed matrix materials (MMMs) have attracted enormous attention due to their desirable properties such as tunable pore structure, excellent chemical, mechanical, and thermal tolerance, good salt rejection and/or high water permeability. This review provides insight into synthesis approaches and structural properties of recent reverse osmosis (RO) and nanofiltration (NF) membranes which are used to retain dissolved species such as heavy metals, electrolytes, and inorganic salts in various aqueous solutions. A specific focus has been placed on introducing and comparing water purification performance of different classes of polymeric and ceramic membranes in related water treatment industries. Furthermore, the development challenges and research opportunities of organic and inorganic membranes are discussed and the further perspectives are analyzed.

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“…Since the energy crisis and environmental pollution, the biological hydrogen has attracted considerable attention, which is generated through degrading organic matter by microorganism. Compared with other methods for hydrogen production [1,2], the biohydrogen production technology is an eco-friendly hydrogen production technology having advantages of mild reaction conditions, less pollutant discharge and energy consumption, proper treatment of the contradiction between energy and environment [3][4][5]. Generally, the technology is branched into darkfermentation and photo-fermentation hydrogen production approaches.…”

Section: Introductionmentioning

confidence: 99%

Pore-scale lattice Boltzmann simulation of flow and mass transfer in bioreactor with an immobilized granule for biohydrogen production

et al. 2017

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Industrialization prospects for hydrogen production by coal gasification in supercritical water and novel thermodynamic cycle power generation system with no pollution emission

Cited by 94 publications

References 130 publications

A review of research trends in the enhancement of biomass-to-hydrogen conversion

A review of research trends in the enhancement of biomass-to-hydrogen conversion

A Review on Reverse Osmosis and Nanofiltration Membranes for Water Purification

Pore-scale lattice Boltzmann simulation of flow and mass transfer in bioreactor with an immobilized granule for biohydrogen production

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