Biohydrogen production as a potential energy fuel in South Africa

Sekoai, Patrick T.; Daramola, Michael O.

doi:10.18331/brj2015.2.2.3

Cited by 44 publications

(12 citation statements)

References 23 publications

(25 reference statements)

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“…A lot of initiatives have been undertaken to promote hydrogen production from biomass, i.e., the international energy agency's (IEA) program launched the project of H2 production and utilization from carbon-coating materials. Hydrogen can be produced from biomass through thermochemical (pyrolysis, gasification, steam gasification, and SCWG) or biochemical routes, while thermochemical pathways deliver higher efficiency at a lower cost (Balat and Kırtay, 2010;Sekoai and Daramola, 2015). Although biological pathways are less energy-intensive and more environmentally friendly, their low rate of hydrogen production is the major challenge.…”

Section: Hydrogen Enriched Gas Productionmentioning

confidence: 99%

A critical review on biomass gasification, co-gasification, and their environmental assessments

2016

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Please cite this article as: Farzad S., Mandegari M.A., Görgens J.F. A critical review on biomass gasification, co-gasification, and their environmental assessments. Biofuel Research Journal 12 (2016) HIGHLIGHTSConventional and new gasification technologies were compared. Studies dealing with co-gasification of different feedstocks were summarized. Life cycle assessments of biomass gasification and co-gasification were studied. Gasification is an efficient process to obtain valuable products from biomass with several potential applications, which has received increasing attention over the last decades. Further development of gasification technology requires innovative and economical gasification methods with high efficiencies. Various conventional mechanisms of biomass gasification as well as new technologies are discussed in this paper. Furthermore, co-gasification of biomass and coal as an efficient method to protect the environment by reduction of greenhouse gas (GHG) emissions has been comparatively discussed. In fact, the increasing attention to renewable resources is driven by the climate change due to GHG emissions caused by the widespread utilization of conventional fossil fuels, while biomass gasification is considered as a potentially sustainable and environmentally-friendly technology. Nevertheless, social and environmental aspects should also be taken into account when designing such facilities, to guarantee the sustainable use of biomass. This paper also reviews the life cycle assessment (LCA) studies conducted on biomass gasification, considering different technologies and various feedstocks. ARTICLE INFO ABSTRACT

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Section: Hydrogen Enriched Gas Productionmentioning

confidence: 99%

A critical review on biomass gasification, co-gasification, and their environmental assessments

2016

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“…In the pre-combustion capture, fuel from the power plant is reacted with oxygen to generate a syngas mixture, which is carried out in the gasification step [55][56][57][58][59][60]. Carbon dioxide is then reacted with steam in the second step to produce CO 2 and H 2 before the CO 2 is finally separated using a physical or chemical absorption process [61][62][63][64][65]. The pre-combustion capture technique incurs high costs for chemical solvent regeneration.…”

Section: Pre-combustionmentioning

confidence: 99%

“…South Africa is among the countries that are highly affected by carbon emissions; the country is the leading CO 2 emitter in Africa and is ranked amongst the top twelve emitters in the world [2]. The country's emissions are intensified by the energy and manufacturing sectors, which release huge amounts of CO 2 into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Yoro

Sekoai

2016

Environments

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Abstract:The global atmospheric concentration of anthropogenic gases, such as carbon dioxide, has increased substantially over the past few decades due to the high level of industrialization and urbanization that is occurring in developing countries, like South Africa. This has escalated the challenges of global warming. In South Africa, carbon capture and storage (CCS) from coal-fired power plants is attracting increasing attention as an alternative approach towards the mitigation of carbon dioxide emission. Therefore, innovative strategies and process optimization of CCS systems is essential in order to improve the process efficiency of this technology in South Africa. This review assesses the potential of CCS as an alternative approach to reducing the amount CO 2 emitted from the South African coal-fired power plants. It examines the various CCS processes that could be used for capturing the emitted CO 2 . Finally, it proposes the use of new adsorbents that could be incorporated towards the improvement of CCS technology.

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“…The present dominating energy supply paradigm of food processing plants is mainly based on fossil fuel in the direct form or indirect electrical power. However, increasing level of carbon dioxide concentration in the atmosphere due to the widespread fossil fuels consumption and growing concern about their future shortage have spurred research into an efficient utilization of available fossil energy resources and development of alternative renewable sources [2,3]. In addition to the abovementioned issues, energy saving is considered with more interest by food manufacturers due to a significant impact of energy on the unit cost of food products [4].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive exergy analysis of a commercial tomato paste plant with a double-effect evaporator

Soufiyan

Dadak

Hosseini

et al. 2016

Energy

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Biohydrogen production as a potential energy fuel in South Africa

Cited by 44 publications

References 23 publications

A critical review on biomass gasification, co-gasification, and their environmental assessments

A critical review on biomass gasification, co-gasification, and their environmental assessments

The Potential of CO2 Capture and Storage Technology in South Africa’s Coal-Fired Thermal Power Plants

Comprehensive exergy analysis of a commercial tomato paste plant with a double-effect evaporator

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