CO2 capture by means of dolomite in hydrogen production from syn gas

Gallucci, Katia; Stendardo, Stefano; Foscolo, P.U.

doi:10.1016/j.ijhydene.2008.03.039

Cited by 54 publications

(31 citation statements)

References 16 publications

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“…In the CO 2 sorption tests, the granular bed (sand and dolomite) was first fluidized with 100 l STP /h N 2 and the temperature was raised to 850°C (at the rate of 10°C/min) to convert any CaCO 3 present to CaO (requiring about 15 min at 850°C). The adopted conditions can be considered rather mild with respect to deactivation and sintering phenomena, mainly occurring in multi-cycling operation conditions [9,20]. The CO 2 concentration of gas leaving the reactor was monitored continuously on-line by means of a thermal-conductivitydetector analyser (ABB); when the CO 2 concentration had fallen to zero the bed temperature was reduced to 650°C in preparation for a CO 2 capture run.…”

Section: Methodsmentioning

confidence: 99%

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CO2 capture with calcined dolomite: the effect of sorbent particle size

Stendardo

Felice

Gallucci

et al. 2011

Biomass Conv. Bioref.

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Section: Methodsmentioning

confidence: 99%

“…A CO 2 sorbent being proposed in the technical literature is calcined dolomite [8][9][10]. Such a cheap, naturally occurring mineral has been tested as CO 2 acceptor in processes to obtain hydrogen-rich synthesis gas [11][12][13].…”

mentioning

confidence: 99%

CO2 capture with calcined dolomite: the effect of sorbent particle size

Stendardo

Felice

Gallucci

et al. 2011

Biomass Conv. Bioref.

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“…Calcined dolomite as a catalyst is attracting much attention because it is inexpensive, abundant and significantly reduces tar formation in the product gas [163]. Therefore calcinate dolomite was extensively investigated in different reactors such as fixed bed [144,164,165] and fluidised bed reactors [166][167][168]. He et al used calcined dolomite as a catalyst in a lab-scale continuous feeding fixed-bed reactor for pyrolysis of municipal solid waste [144].…”

Section: Catalysts In Pyrolysismentioning

confidence: 99%

Biofuels Production through Biomass Pyrolysis —A Technological Review

et al. 2012

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There has been an enormous amount of research in recent years in the area of thermo-chemical conversion of biomass into bio-fuels (bio-oil, bio-char and bio-gas) through pyrolysis technology due to its several socio-economic advantages as well as the fact it is an efficient conversion method compared to other thermo-chemical conversion technologies. However, this technology is not yet fully developed with respect to its commercial applications. In this study, more than two hundred publications are reviewed, discussed and summarized, with the emphasis being placed on the current status of pyrolysis technology and its potential for commercial applications for bio-fuel production. Aspects of pyrolysis technology such as pyrolysis principles, biomass sources and characteristics, types of pyrolysis, pyrolysis reactor design, pyrolysis products and their characteristics and economics of bio-fuel production are presented. It is found from this study that conversion of biomass to bio-fuel has to overcome challenges such as understanding the trade-off between the size of the pyrolysis plant and feedstock, improvement of the reliability of pyrolysis reactors and processes to become viable for commercial applications. Further study is required to achieve a better understanding of the economics of biomass pyrolysis for bio-fuel production, as well as resolving issues related to the capabilities of this technology in practical application. OPEN ACCESSEnergies 2012, 5 4953

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“…In the pre-breakthrough regime, over 140 min, most of the CO 2 is extracted by a fast carbonation with CaO thereby increasing the H 2 yield. In the breakthrough regime, H 2 yield decreases and in the post-breakthrough the sorbent is already saturated, and the H 2 yield is steady, controlled by CO 2 diffusion under the carbonation reaction [73,110,111]. In the latter stage, the SEGSR reactor turns a conventional fixed bed glycerol steam reforming.…”

Section: General Case Studymentioning

confidence: 99%

Upgrading the Glycerol from Biodiesel Production as a Source of Energy Carriers and Chemicals—A Technological Review for Three Chemical Pathways

Rodrigues

Bordado²,

Santos³

2017

Energies

128

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Abstract:Glycerol is a by-product of biodiesel obtained from biomass, accounting for 10% of the biodiesel production. In the context of a green economy, aiming for a reduction of the emission of atmospheric greenhouse gases emissions, the demand of biodiesel is expected to increase vastly, in parallel with a side glut supply of glycerol. Given the high cost of biodiesel compared with its fossil congener, upgrading of glycerol into added-value products can represent a secondary income source and turn the production of such alternative fuels economically sustainable in the long term. The glycerol obtained as by-product of biodiesel from biomass is in a crude form and must be purified. Some industrial solutions and applications were therein geared. The survey presented in this work, based on a reviewing of the existing literature, examines three routes for the valuing glycerol into energy carriers and chemicals, namely, carbonation, acylation, and steam reforming to hydrogen. The latter is embodied of great interest and importance, insofar that hydrogen by itself is considered as straighforward clean fuel for transportation uses, due to its high calorific power and to recent advances in fuel cells. We also have focused on the chain value from biomass to energies carriers through these pathways.

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CO2 capture by means of dolomite in hydrogen production from syn gas

Cited by 54 publications

References 16 publications

CO2 capture with calcined dolomite: the effect of sorbent particle size

CO2 capture with calcined dolomite: the effect of sorbent particle size

Biofuels Production through Biomass Pyrolysis —A Technological Review

Upgrading the Glycerol from Biodiesel Production as a Source of Energy Carriers and Chemicals—A Technological Review for Three Chemical Pathways

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