Co-gasification of biomass and municipal solid waste for hydrogen-rich gas production

Eghtedaei, Reza; Mirhosseini, S.A.; Esfahani, Mohammad Javad; Foroughi, Amin; Akbari, Hasan

doi:10.1080/15567036.2017.1315757

Cited by 16 publications

(3 citation statements)

References 9 publications

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“…The concentration and composition of tar formed are strongly dependent on various factors such as (1) temperature, (2) gasifier design (downdraft/updraft/fluidized bed), (3) gasification medium, (4) feed stock, (5) residence time, and (6) pressure . Hence, the effect of these factors on tar formation has been studied by various researchers over many decades. − While few researchers have focused on developing new approaches to quantify tar formation, others have attempted to compare available methods to identify and quantifying the tar formed from gasification, − which itself is very complex and tricky.…”

Section: Tar From Gasificationmentioning

confidence: 99%

“… 33 Hence, the effect of these factors on tar formation has been studied by various researchers over many decades. 80 − 93 While few researchers have focused on developing new approaches to quantify tar formation, others have attempted to compare available methods to identify and quantifying the tar formed from gasification, 94 − 100 which itself is very complex and tricky.…”

Section: Tar From Gasificationmentioning

confidence: 99%

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Tar Formation in Gasification Systems: A Holistic Review of Remediation Approaches and Removal Methods

Jayanarasimhan,

Pathak,

Shivapuji

et al. 2024

ACS Omega

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Gasification is an advanced thermochemical process that converts carbonaceous feedstock into syngas, a mixture of hydrogen, carbon monoxide, and other gases. However, the presence of tar in syngas, which is composed of higher molecular weight aromatic hydrocarbons, poses significant challenges for the downstream utilization of syngas. This Review offers a comprehensive overview of tar from gasification, encompassing gasifier chemistry and configuration that notably impact tar formation during gasification. It explores the concentration and composition of tar in the syngas and the purity of syngas required for the applications. Various tar removal methods are discussed, including mechanical, chemical/catalytic, and plasma technologies. The Review provides insights into the strengths, limitations, and challenges associated with each tar removal method. It also highlights the importance of integrating multiple techniques to enhance the tar removal efficiency and syngas quality. The selection of an appropriate tar removal strategy depends on factors such as tar composition, gasifier operating and design factors, economic considerations, and the extent of purity required at the downstream application. Future research should focus on developing cleaning strategies that consume less energy and cause a smaller environmental impact.

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Section: Tar From Gasificationmentioning

confidence: 99%

Section: Tar From Gasificationmentioning

confidence: 99%

Tar Formation in Gasification Systems: A Holistic Review of Remediation Approaches and Removal Methods

Jayanarasimhan,

Pathak,

Shivapuji

et al. 2024

ACS Omega

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“…An important feature of biomass is that the resulted CO 2 emissions equal the CO 2 quantity taken from the atmosphere during photosynthesis, which represents a recirculation and not an intake from outside the atmosphere. Therefore, the term of ‘biomass’ is a substitute for recyclable organic raw materials, which can be grouped into three main categories:ligno-cellulosic waste (forestry or agricultural); the following are included here: tree trunks, branches, woodchips, wood pellets, bamboo, palm tree, eucalyptus [2,3], pecan nut, almond, cocoa, palm kernel-shells [4,5], sawdust waste (pine, chestnut), pine cone [6,7], wheat straw [8], stalks, sorghum, rapeseed, sugar cane, rice husk [9], corn stems and roots, Miscanthus, hemp, poplar and willow; algae (aquatic vegetation); subject to fermentation or anaerobic digestion, in order to produce biofuels [10,11,12]; municipal solid waste [13,14,15]; combined with wheat straw [8], coal [16] or biomass [17,18]. …”

Section: Introductionmentioning

confidence: 99%

HYRON—An Installation to Produce High Purity Hydrogen and Soft Iron Powder from Cellulose Waste

2019

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The paper aims to describe a new technology of producing a gaseous mixture of type H2 + CO from cellulose waste that generates high purity hydrogen, without using technical oxygen. The physico-chemical process takes place in an installation designed and built for this purpose, namely HYRON, whose scheme and functionality are presented in the article, as well. The process relies on natural decomposition of cellulose waste into H2, CO, CO2 and water vapor, as a result of overheating. In subsidiary, the HYRON installation allows producing soft iron powder, with very low carbon content, from shredded iron ore, by using part of the obtained hydrogen as reducing agent. The chemical reactions underlying the gasification and redox processes, as well as the design approach of the various parts of the HYRON plant, are described in the article at length. The experimental tests made with the installation prototype (after proper calibration) showed that the resulted hydrogen had a purity of at least 99%, while the soft iron powder had over 88% pure iron in the composition. After a short economical analysis, it turned out that the costs of such products are reasonable.

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Upgrading of plastic waste-derived wax through air gasification using promoted Ni/Al2O3 catalysts for H2 generation

Khani,

Valizadeh,

Yim

et al. 2023

Chemical Engineering Journal

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Co-gasification of biomass and municipal solid waste for hydrogen-rich gas production

Cited by 16 publications

References 9 publications

Tar Formation in Gasification Systems: A Holistic Review of Remediation Approaches and Removal Methods

Tar Formation in Gasification Systems: A Holistic Review of Remediation Approaches and Removal Methods

HYRON—An Installation to Produce High Purity Hydrogen and Soft Iron Powder from Cellulose Waste

Upgrading of plastic waste-derived wax through air gasification using promoted Ni/Al2O3 catalysts for H2 generation

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