Lime enhanced gasification of solid fuels: Examination of a process for simultaneous hydrogen production and CO2 capture

Weimer, T.; Berger, Roland; Hawthorne, Craig; Abanades, J.C.

doi:10.1016/j.fuel.2007.08.023

Cited by 96 publications

(47 citation statements)

References 16 publications

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“…Several alternatives have been proposed in the literature as a means of providing the heat required for the calcination of CaCO 3 . These mainly include oxy-fuel combustion in a regenerator (Martínez et al, 2013b;Weimer et al, 2008;Wolf and Yan, 2005), indirect heating by hot solids (Wolf and Yan, 2005) or by hot gases (Johnsen et al, 2006;Li and Cai, 2007;Stevens et al, 2007) obtained from additional fuel combustion, or the use of the waste heat from a fuel cell coupled to the SER process (Boshu et al, 2008;Meyer et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

CaCO3 calcination by the simultaneous reduction of CuO in a Ca/Cu chemical looping process

Alarcón

Fernández

2015

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 99%

CaCO3 calcination by the simultaneous reduction of CuO in a Ca/Cu chemical looping process

Alarcón

Fernández

2015

Chemical Engineering Science

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“…This equation generates explicit equations for X ave (depending on the choice of deactivation curve for X N ), and have been used for reactor designs and systems analysis in previous works (see [15][16][17][18][19]). The equations for X ave are valid as long as the operating conditions and reactor designs allow the maximum conversion of solids during carbonation and calcination.…”

Section: Introductionmentioning

confidence: 99%

Average activity of CaO particles in a calcium looping system

Rodríguez

Alonso

Abanades

2010

Chemical Engineering Journal

100

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“…Compared with steel slag and calcium oxide, dolomite showed higher selectivity to CO 2 . Meanwhile, calcium oxide showed the lowest selectivity to CO 2 because of the reaction of CaO with CO 2 [8]. In terms of H 2 and CH 4 , calcium oxide showed the highest selectivity, and steel slag and the dolomite showed the next highest performances.…”

Section: Gasification Test Resultsmentioning

confidence: 98%

Reduction of tar using cheap catalysts during sewage sludge gasification

Hong

Dong

Yeo

et al. 2011

J Mater Cycles Waste Manag

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Solid-fuel conversion or gasification study of sewage sludge and energy recovery has become increasingly important because energy recovery and climate change are emerging issues. Various types of catalysts, such as dolomite, steel slag and calcium oxide, were tested for tar reduction during the sewage sludge gasification process. For the experiments on sewage sludge gasification reactions and tar reduction using the catalysts, a fixed bed of laboratory-scale experimental apparatus was set up. The reactor was made of quartz glass using an electric muffle furnace. The sewage sludge samples used had moisture contents less than 6%. The experimental conditions were as follows: sample weight was 20 g and reaction time was 10 min, gasification reaction temperature was from 600 to 800°C, and the equivalence ratio was 0.2. The quantity of catalysts was 2-6 g, and temperatures of catalyst layers were 500-700°C. As the reaction temperature increased up to 800°C, the yields of gaseous products and liquid products increased, whereas char and tar products decreased, showing effects on gas product compositions. These results were considered to be due to the increase of the water-gas reaction and Boudouard reaction. In the case of experiments with catalysts, dolomite (4 g), steel slag (6 g) and calcium oxide (6 g) were used. When the temperature of catalysts increased, the weight of the tar produced decreased with different cracking performances by different catalysts. Reforming reactions were considered to occur on the surface of dolomite, steel slag and calcium oxide, causing cracking of the hydrocarbon structure, which eventually showed reduced tar generation.

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Lime enhanced gasification of solid fuels: Examination of a process for simultaneous hydrogen production and CO2 capture

Cited by 96 publications

References 16 publications

CaCO3 calcination by the simultaneous reduction of CuO in a Ca/Cu chemical looping process

CaCO3 calcination by the simultaneous reduction of CuO in a Ca/Cu chemical looping process

Average activity of CaO particles in a calcium looping system

Reduction of tar using cheap catalysts during sewage sludge gasification

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