Utilization of wood biomass char in a direct carbon fuel cell (DCFC) system

Ahn, Seongyool; Eom, Seong Yong; Rhie, Young Hoon; Sung, Yon Mo; Moon, Cheor Eon; Choi, Gyung‐Min; Kim, Duck Jool

doi:10.1016/j.apenergy.2013.01.023

Cited by 105 publications

(75 citation statements)

References 17 publications

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“…2 shows that all of the samples exhibit (0 0 2) band and have the graphite-like structure. While for CC the peak is very low, which indicates that the biomass char has an amorphous carbon structure [31]. For DOA char, the peak is significantly sharper than that of the other two chars, which suggests the DOA char has the highest graphitization degree.…”

Section: Characterization and Gasification Behavior Of Pure Charsmentioning

confidence: 90%

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Preliminary study on co-gasification behavior of deoiled asphalt with coal and biomass

Zhang

et al. 2014

Applied Energy

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Section: Characterization and Gasification Behavior Of Pure Charsmentioning

confidence: 90%

“…86-1560); but the CC char, which has a high ash content (8.9%), does not show such obvious peaks. The reason is that the minerals contained in CC are poorly crystallized mineraloids [29,31]. In addition, no obvious mineral peaks are detected in DOA.…”

Section: Characterization and Gasification Behavior Of Pure Charsmentioning

confidence: 91%

Preliminary study on co-gasification behavior of deoiled asphalt with coal and biomass

Zhang

et al. 2014

Applied Energy

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“…In this paper, the experiment was consisted of half-cell part and performance evaluation part of DCFC system [9], [10]. Fig.…”

Section: B Dcfc Experimental Systemmentioning

confidence: 99%

“…This fact results in importance of the fuel analysis because the solid fuel was used instead of H 2 gas in other fuel cells. Therefore, the fuel analysis was performed to investigate the relation between fuel properties and the oxidation reactions [9], [10]. All fuel samples were conducted by proximate analysis and ultimate analysis and shown in Table I.…”

Section: A Preparation Of Sample and Analysis Of Coal Characteristicsmentioning

confidence: 99%

Effect of Coal Gases on Electrochemical Reactions in the Direct Carbon Fuel Cell System

Eom¹,

Ahn²,

Rhie³

et al. 2015

JOCET

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Abstract-Various carbonaceous fuels were evaluated in a Direct Carbon Fuel Cell (DCFC) system as energy sources. In order to investigate the characteristics of electrochemical reaction of various fuels in DCFC, three coals, such as Shenhua coal, Adaro coal, and Openblue coal which have different content of fixed carbon and volatile matter, were selected in this research. The characteristics of electrochemical reactions of fuels were investigated at 700℃ by potentiostatic method of the fuel cell and the effect of fuels properties is also discussed. The effect of gases from coals was investigated by using raw coal state and char state in present work. The gases, such as H 2 , CH 4 , CO and CO 2 , were detected in the exhaust gas of anode side by thermal decomposition of coal. It is confirmed that these gases have an effect on the electrochemical reaction on DCFC system by comparing of current density of raw coal and char.

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“…The direct conversion of molten, carbonaceous solid fuel into electricity, without the need of pre-conversion into gaseous form by direct carbon fuel cell (DCFC) was recently achieved [65]. Results showed the feasibility of using (bio)char as a low-cost, renewable fuel for DCFCs notwithstanding its relatively low carbon and high ash contents, achieving fuel cell power density of about 60-70% compared to coal-based fuel cells.…”

Section: (Bio)char In Fuel Cell Systemsmentioning

confidence: 91%

Properties and Beneficial Uses of (Bio)Chars, with Special Attention to Products from Sewage Sludge Pyrolysis

2018

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Abstract:Residual sludge disposal costs may constitute up to, and sometimes above, 50% of the total cost of operation of a Wastewater Treatment Plant (WWTP) and contribute approximately 40% of the total greenhouse gas (GHG) emissions associated with its operation. Traditionally, wastewater sludges are processed for: (a) reduction of total weight and volume to facilitate their transfer and subsequent treatments; (b) stabilization of contained organic material and destruction of pathogenic microorganisms, elimination of noxious odors, and reduction of putrefaction potential and, at an increasing degree; (c) value addition by developing economically viable recovery of energy and residual constituents. Among several other processes, pyrolysis of sludge biomass is being experimented with by some researchers. From the process, oil with composition not dissimilar to that of biodiesels, syngas, and a solid residue can be obtained. While the advantage of obtaining sludge-derived liquid and gaseous fuels is obvious to most, the solid residue from the process, or char (also indicated as biochar by many), may also have several useful, initially unexpected applications. Recently, the char fraction is getting attention from the scientific community due to its potential to improve agricultural soils' productivity, remediate contaminated soils, and supposed, possible mitigation effects on climate change. This paper first discusses sludge-pyrolysis-derived char production fundamentals (including relationships between char, bio-oil, and syngas fractions in different process operating conditions, general char properties, and possible beneficial uses). Then, based on current authors' experiments with microwave-assisted sludge pyrolysis aimed at maximization of liquid fuel extraction, evaluate specific produced char characteristics and production to define its properties and most appropriate beneficial use applications in this type of setting.

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Utilization of wood biomass char in a direct carbon fuel cell (DCFC) system

Cited by 105 publications

References 17 publications

Preliminary study on co-gasification behavior of deoiled asphalt with coal and biomass

Preliminary study on co-gasification behavior of deoiled asphalt with coal and biomass

Effect of Coal Gases on Electrochemical Reactions in the Direct Carbon Fuel Cell System

Properties and Beneficial Uses of (Bio)Chars, with Special Attention to Products from Sewage Sludge Pyrolysis

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