Effect of temperature and dolomite on tar formation during gasification of torrefied biomass in a pressurized fluidized bed

Berrueco, C.; Montané, Daniel; Güell, Berta Matas; Alamo, Gonzalo del

doi:10.1016/j.energy.2013.12.035

Cited by 96 publications

(52 citation statements)

References 38 publications

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“…Increase of PAH tertiary tars could also be explained by the decomposition of the heavier GC undetectable fraction into lighter PAH tertiary tars [11]. The production of PAHs was observed together with a decrease in phenols and alkylated aromatics ( Figure 5), as a result of dealkylation, dehydration, decarbonylation, and polymerization reactions [49,50]. The yield of alkyl tertiary tars (see Table A2) remained constant over the temperature range studied.…”

Section: G/mol) To Benz[a]anthracene (M ≈ 22829 G/mol)mentioning

confidence: 86%

Cynara cardunculus L. gasification in a bubbling fluidized bed: The effect of magnesite and olivine on product gas, tar and gasification performance

Serrano

Kwapińska

Horvat

et al. 2016

Fuel

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Gasification of Cynara cardunculus L. was performed in a bubbling fluidized bed (BFB) using air as the gasifying agent and magnesite and olivine as different bed materials. Temperature was varied during the experiments (700-800 ºC) with fixed biomass feeding and air flow rates.The effect of using the magnesite and olivine on the gas and tar composition, carbon and biomass conversion, and cold gas efficiency was investigated. The product gas showed high hydrogen content (13-16 %v/v) for both magnesite and olivine in the temperature range studied.Higher heating value and gas yield were improved with increasing the temperature from 700 to 800 ºC. Biomass and carbon conversion were greater than 75%, giving values higher than 90 % for both 700 and 800 ºC in magnesite and for 800 ºC in olivine. Indane and cresols were the main tar compounds at low temperature while naphthalene was the dominant tar species at the high temperatures. Gasification performance was better with magnesite at 700 ºC while olivine showed better properties at 800 ºC.

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Section: G/mol) To Benz[a]anthracene (M ≈ 22829 G/mol)mentioning

confidence: 86%

Cynara cardunculus L. gasification in a bubbling fluidized bed: The effect of magnesite and olivine on product gas, tar and gasification performance

Serrano

Kwapińska

Horvat

et al. 2016

Fuel

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“…Also, it is not effective in heavy tar cracking and it is difficult to achieve or exceed 90-95 % tar conversion. Recently, Berrueco et al [191] found that tar destruction reactions promoted by the catalyst (dolomite) enhanced the production of some of the gas components (H 2 , CO 2 , CO and CH 4 ), whereas selectivity to C 2 hydrocarbons decreased.…”

Section: The Catalytic Gasification Of Biomass Feedstock With Alkali mentioning

confidence: 98%

The Efficient and Sustainable Pyrolysis and Gasification of Biomass by Catalytic Processes

Tong

Chen

et al. 2015

ChemBioEng Reviews

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The biomass thermochemical conversion process includes two major approaches: pyrolysis and gasification. The advantages of pyrolysis and gasification of biomass feedstock in the presence of various catalyst systems are critically reviewed. The role of a catalyst in pyrolysis of biomass and its major components cellulose, hemicellulose and lignin is investigated. The discussion is focused on elucidating the reaction mechanisms involved in the formation of aromatics and phenols during catalytic pyrolysis. The pyrolysis performance of two major catalyst systems, metal-containing catalysts and zeolite catalysts, is analyzed. The impact of the catalyst on the deoxygenation efficiency is ascertained. In the catalytic gasification process, two major catalyst systems including alkali metals and noble metal catalysts are employed. This review illustrates the function of the catalyst in improving the yields of syngas and hydrogen and the mechanistic aspects of the reduction of tar and char formed during gasification. Ultimately, the review is intended to introduce the state of art in the biomass thermochemical conversion with an emphasis on the importance of the catalyst in producing value-added products.

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“…The resulting C * species subsequently reacted with oxygen from dissociation adsorbed steam to yield CO and H 2 [51][52][53][54][55][56]. CaO and MgO which these oxides further enhance the tar cracking [20,[61][62][63][64][65][66][67]. Table 5 shows the effect of the dolomite bed on gas composition and tar cracking.…”

Section: Effect Of Catalyst On Final Product Yield and Tar Crackingmentioning

confidence: 99%

H 2 -rich syngas production through mixed residual biomass and HDPE waste via integrated catalytic gasification and tar cracking plus bio-char upgrading

Esfahani

Osmieri

Specchia

et al. 2017

Chemical Engineering Journal

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Effect of temperature and dolomite on tar formation during gasification of torrefied biomass in a pressurized fluidized bed

Cited by 96 publications

References 38 publications

Cynara cardunculus L. gasification in a bubbling fluidized bed: The effect of magnesite and olivine on product gas, tar and gasification performance

Cynara cardunculus L. gasification in a bubbling fluidized bed: The effect of magnesite and olivine on product gas, tar and gasification performance

The Efficient and Sustainable Pyrolysis and Gasification of Biomass by Catalytic Processes

H 2 -rich syngas production through mixed residual biomass and HDPE waste via integrated catalytic gasification and tar cracking plus bio-char upgrading

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