A critical review of syngas cleaning technologies — fundamental limitations and practical problems

Sharma, Shallu; Dolan, Michael D.; Park, D.; Morpeth, LD; Ilyushechkin, Alexander; McLennan, K.G.; Harris, D.J.; Thambimuthu, K V

doi:10.1016/j.powtec.2007.03.023

Cited by 115 publications

(44 citation statements)

References 3 publications

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“…Few data are available in the literature on the filtration efficiency of these devices. An efficiency of 99% was reported for particles with a diameter greater than 4 µm and 93% for smaller particles [7,21].…”

Section: Granular Bed Filtersmentioning

confidence: 99%

“…The ceramic filters currently available are made of a thin outer layer, usually consisting of fine-ground silicon carbide or aluminosilicate, surrounding the main body, which is composed of course-ground silicon carbide. The ceramic filters show very good filtration efficiency, near 100% for temperatures up to 800°C [7,19,21]. Unfortunately, this technology has several weaknesses that affect the reliability of its performance:  Cracks can appear after thermal shock, which occurs mainly during the filter cleaning phase by passing at counter-current of clean gas.…”

Section: Candle Filtersmentioning

confidence: 99%

“…One of the solutions to this problem is to use a hot gas to unclog the filters [19].  Cracks can also appear after explosions inside the candles due to the simultaneous presence of dust and flammable gas [21,22].  Over time, a residual particle deposit forms on the filter surface and leads to irreversible fouling [13,21].…”

Section: Candle Filtersmentioning

confidence: 99%

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Separation of particles from syngas at high-temperatures with an electrostatic precipitator

Villot¹,

Gonthier²,

Gonze³

et al. 2012

Separation and Purification Technology

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, et al.. Separation of particles from syngas at high-temperatures with an electrostatic precipitator. Separation and Purification Technology, Elsevier, 2012, 92, pp.181 -190. 10 The study, which is submit to you, was supported by the French National Agency and it is incorporated in the EPURGAZ project (ANR-06-BIOE-O05). The aim of this project was to study the different existing possible way to clean syngas from biomass gasification at high temperatures (> 500°C). This project was realized in partnership with the French Institute of Petrol (IFP -Lyon), the French Atomic Energy Commission (CEA -Grenoble), Air Liquid (Loges en Josas) and the Savoie University.This study shown the possibility to use an electrostatic precipitator at temperatures above 500°C to remove the particles contained in syngas from biomass gasification. Indeed, the filtration efficiency obtained during the filtration tests conducted at the CEA site in Grenoble, FRANCE, were greater than 95%.I submit you only 2 reviewers because I did not find an others :  The possibility of removing the particles from syngas at high temperature with an electrostatic precipitator (>500°C) was studied. Syngas filtration tests conducted directly downstream of a gasifier. Two filtration tests were realized : the first at a temperature of 510°C and the second at 680°C. For each filtration tests, an average mass filtration efficiency greater than 95% was obtained. Grenoble Cedex 9, FRANCE Abstract-The synthesis gas stemming from biomass gasification contains particles (ashes, soot, etc.), which, if not removed, can induce severe operational damage. The problem is more serious if syngas must be used for chemical synthesis as in the Fischer-Tropsch catalyst reaction or the water-gas shift. The particles contained in syngas can reduce or inhibit the catalyst effect. Moreover, for energy reasons, it is also necessary to develop a filtration process at as high a temperature as possible. To address this issue, a study to show the possibility of removing the particles from syngas with an electrostatic precipitator at high temperature (500-1000°C) and pressure (0.1-1 MPa) was conducted. Syngas filtration tests conducted directly downstream of a gasifier demonstrated the feasibility of implementing an electrostatic precipitator to clean syngas at temperatures above 500°C.

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Section: Granular Bed Filtersmentioning

confidence: 99%

Section: Candle Filtersmentioning

confidence: 99%

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Separation of particles from syngas at high-temperatures with an electrostatic precipitator

Villot¹,

Gonthier²,

Gonze³

et al. 2012

Separation and Purification Technology

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“…According to Sharma et al [109]; a gas cleaning process can be operated at three temperature regimes as a consequence of the syngas final application in a gasification plant. Cold (less than 25 °C); warm (less than 300 °C) and hot cleaning (more than 300 °C).…”

Section: Syngas Cleaningmentioning

confidence: 99%

Towards a Carbon-Neutral Energy Sector: Opportunities and Challenges of Coordinated Bioenergy Supply Chains-A PSE Approach

2015

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Abstract:The electricity generation sector needs to reduce its environmental impact and dependence on fossil fuel, mainly from coal. Biomass is one of the most promising future options to produce electricity, given its potential contribution to climate change mitigation. Even though biomass is an old source of energy, it is not yet a well-established commodity. The use of biomass in large centralised systems requires the establishment of delivery channels to provide the desired feedstock with the necessary attributes, at the right time and place. In terms of time to deployment and cost of the solution, co-combustion/co-gasification of biomass and coal are presented as transition and short-medium term alternatives towards a carbon-neutral energy sector. Hence, there is a need to assess an effective introduction of co-combustion/co-gasification projects in the current electricity production share. The purpose of this work is to review recent steps in Process Systems Engineering towards bringing into reality individualised and ad-hoc solutions, by building a common but adjustable design platform to tailored approaches of biomass-based supply chains. Current solutions and the latest developments are presented and future needs under study are also identified. OPEN ACCESSEnergies 2015, 8 5614

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“…However, it is a challenge considering the corrosion and material fatigue problems occurring at high temperatures with gases containing sulphur, chlorine and alkaline compounds. Consequently, gas impurities need to be removed prior to filtration or alternatively novel methods for dust cake removal have to be introduced [46,47]. The effects of poisons and trace impurities need to be examined more in depth.…”

Section: Challengesmentioning

confidence: 99%

Upgrading of Raw Gas from Biomass and Waste Gasification: Challenges and Opportunities

et al. 2011

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The depletion of fossil fuel-based resources and concerns for increasing emissions of CO 2 call for new ways of producing environmentally-friendly substitutes for motor fuels and chemicals. Thermo-chemical conversion of biomass and waste using gasification is a strong candidate to meet these challenges. For efficient and cost-effective application of this technique, novel solutions for hot gas cleaning are needed. This review highlights some important areas for improvement of upgrading technologies for pressurised fluidised bed gasification systems using biomass as a fuel.

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A critical review of syngas cleaning technologies — fundamental limitations and practical problems

Cited by 115 publications

References 3 publications

Separation of particles from syngas at high-temperatures with an electrostatic precipitator

Separation of particles from syngas at high-temperatures with an electrostatic precipitator

Towards a Carbon-Neutral Energy Sector: Opportunities and Challenges of Coordinated Bioenergy Supply Chains-A PSE Approach

Upgrading of Raw Gas from Biomass and Waste Gasification: Challenges and Opportunities

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