Evaluation of different oxygen carriers for biomass tar reforming (I): Carbon deposition in experiments with toluene

Mendiara, Teresa; Johansen, Joakim Myung; Utrilla, R.; Geraldo, Paulo; Jensen, Anker Degn; Glarborg, Peter

doi:10.1016/j.fuel.2010.11.028

Cited by 64 publications

(49 citation statements)

References 65 publications

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“…In this paper and as a continuation of the previous work by the authors [1], the reaction of the same oxygen carriers with CH 4 , CO and H 2 (in the presence of H 2 O and CO 2 ) will be studied. The main focus will be on the influence on carbon formation of temperature, in the range 873-1073 K, and H 2 O/C x H y molar ratio, with the aim of determining the conditions to avoid or minimize 5 the carbon deposition.…”

Section: Introductionmentioning

confidence: 93%

“…In a similar way as it was done in the experiments with C 7 H 8 [1], the sample was subjected to reaction at different temperatures consecutively (873-1073-873 K). At each temperature, the sample was exposed in a cyclic manner to a and Mn40, the duration of the cycles were 9 minutes for reduction and 8 min for oxidation; in the case of the Fe sample, it was 30 and 25 min, respectively.…”

Section: Thermogravimetric Analysis Device (Tga)mentioning

confidence: 99%

“…An example of the concentration profiles obtained in a typical experiment are shown in Figure 6. Those measurements were used to extract information about carbon deposition during the process as it was described elsewhere [1].…”

Section: Fixed Bed Reactormentioning

confidence: 99%

“…The Chemical Looping Reforming technology (CLR) is among the newest approaches. In a companion paper by the authors, the suitability for tar elimination of this technology was analyzed [1]. The performance of four different oxygen carriers used in CL processes was studied using toluene (C 7 H 8 ) as model compound for high temperature biomass tar.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of different oxygen carriers for biomass tar reforming (II): Carbon deposition in experiments with methane and other gases

Mendiara

Johansen

Utrilla

et al. 2011

Fuel

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Section: Introductionmentioning

confidence: 93%

Section: Thermogravimetric Analysis Device (Tga)mentioning

confidence: 99%

Section: Fixed Bed Reactormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of different oxygen carriers for biomass tar reforming (II): Carbon deposition in experiments with methane and other gases

Mendiara

Johansen

Utrilla

et al. 2011

Fuel

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“…The majority these experiments were performed with gaseous fuel, methane, natural gas or syngas, followed by solid fuels. Liquid fuels have been examined in laboratory batch experiments [3][4][5][6][7][8] and in continuous operation [9]. A throughout discussion of the mentioned publications can be found in an earlier work by the authors [9].…”

Section: Armentioning

confidence: 99%

Chemical-looping combustion and chemical-looping with oxygen uncoupling of kerosene with Mn- and Cu-based oxygen carriers in a circulating fluidized-bed 300W laboratory reactor

Moldenhauer

Rydén

Mattisson

et al. 2012

Fuel Processing Technology

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The fuel conversion properties of two oxygen carriers, based on manganese-and copper-oxide, were investigated with sulphur-free kerosene in a chemical-looping reactor with continuous particle circulation. An injection system was used, in which kerosene was evaporated, mixed with superheated steam and fed directly into the lab scale chemical-looping reactor. The manganese-based oxygen carrier M4MZ-1200 was composed of 40 wt% Mn 3 O 4 and 60 wt% MgO-ZrO 2 and was used for chemical-looping combustion (CLC) experiments for 17 h. The copper-based oxygen carrier C2Z-1050 was composed of 20 wt% CuO and 80 wt% ZrO 2 and was used for 45 h with fuel addition. With M4MZ-1200 oxygen carrier, 83 -99.3 % of the fuel carbon was converted to CO 2 at temperatures between 800°C and 950°C and fuel flows equivalent to 144 -462 W th . Higher conversions at lower temperatures than with M4MZ-1200 were achieved with C2Z-1050, which is likely due to the ability of CuO to release gas phase oxygen in the fuel reactor, i.e. CLOU properties. Here, 99.99 % CO 2 yield was achieved at 900°C and 144 W th fuel equivalent. The particles were analyzed before and after the experiments using XRD, SEM, BET surface area and particle size distribution. Whereas nearly the whole batch of M4MZ-1200 particles was disintegrated after the experiments, only about 5 % of the C2Z-1050 particles turned to fines. This is the first time that combustion of liquid fuel using CLOU is demonstrated in a continuous unit.

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Developing Oxygen Carriers for Chemical Looping Biomass Processing: Challenges and Opportunities

Zhou

Luo

et al. 2020

Advanced Sustainable Systems

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of global average temperature to within 2 °C compared to pre-industrial era, [2] it is necessary to rapidly reduce our reliance on fossil fuels. To this end, tremendous efforts have been put in to ramp up the capacities of renewable energy generation, including solar, wind, hydro, geothermal, tidal, etc. [3] However, non-biological renewables are available intermittenty, location-specific, and require costly infra

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Evaluation of different oxygen carriers for biomass tar reforming (I): Carbon deposition in experiments with toluene

Cited by 64 publications

References 65 publications

Evaluation of different oxygen carriers for biomass tar reforming (II): Carbon deposition in experiments with methane and other gases

Evaluation of different oxygen carriers for biomass tar reforming (II): Carbon deposition in experiments with methane and other gases

Chemical-looping combustion and chemical-looping with oxygen uncoupling of kerosene with Mn- and Cu-based oxygen carriers in a circulating fluidized-bed 300W laboratory reactor

Developing Oxygen Carriers for Chemical Looping Biomass Processing: Challenges and Opportunities

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