Experimental study on H2S adsorption on gasification char under different operative conditions

Marchelli, Filippo; Cordioli, Eleonora; Patuzzi, Francesco; Sisani, Elena; Barelli, Linda; Baratieri, Marco; Arato, Elisabetta; Bosio, Bárbara

doi:10.1016/j.biombioe.2019.05.003

Cited by 26 publications

(17 citation statements)

References 48 publications

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“…Due to these positive features, gasification is already largely applied at the commercial scale. In the Alpine region of South Tyrol in North-East Italy, for example, 46 gasification plant were operative as of the end of 2017 [43].…”

Section: Thermo-chemical Conversion Technologiesmentioning

confidence: 99%

“…The most interesting applications are arguably those within the gasification process itself, as they eliminate costs for transport of the char and for the purchase of specific materials. Recently, many researchers devoted their efforts to this topic: Ravenni et al [52], Buentello-Montoya et al [53] and Cordioli et al [54] proved that char is suitable for reforming and cracking the gasification tar; Marchelli et al [43] and Benedetti et al [55] showed that it is able to adsorb H 2 S and CO 2 ; Hernández et al [56] and Piazzi et al [48] assessed the benefits of recirculating it to the gasifier or burning it in a separate unit, respectively.…”

Section: On the Use Of Subproducts In A Circular Economy Viewmentioning

confidence: 99%

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Current Status of Energy Production from Solid Biomass in North-West Italy

2020

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Data on the thermochemical plants fed by solid biomass in the north-west area of Italy (Liguria, Lombardy, Piedmont and Aosta Valley) have been organised, analysed and discussed. Moreover, the biomass availability and potential has been evaluated. A total of 28,167 plants have been categorised according to their typology and output: thermo-electric power plants for electricity production, thermal plants for heat production, cogeneration plants for combined heat and electricity production and district heating installations for local heating purposes. In general, separate observations for the different provinces may be drawn. Liguria stands out as the most evident case of under-exploited biomass potential, followed by Aosta Valley, which, however, is rich in hydroelectricity. Lombardy and Piedmont are more virtuous and have several plants in their territory. The construction of new plants and the upgrade of existing ones may bring noteworthy benefits, as well as the use of added value sub-products to foster circular economy approaches.

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Section: Thermo-chemical Conversion Technologiesmentioning

confidence: 99%

Section: On the Use Of Subproducts In A Circular Economy Viewmentioning

confidence: 99%

Current Status of Energy Production from Solid Biomass in North-West Italy

2020

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“…A typical compromise to extensive testing at the industrial scale is to shrink the size of the system via computational simulations and laboratory experiments 11 . While cost and time effective, a central challenge arises when scaling results to industrial scale 12 . Small‐scale computational and bench‐top experiments are susceptible to variability in local particle packing, orientation, pore accessibility, and flow paths.…”

Section: Introductionmentioning

confidence: 99%

“…11 While cost and time effective, a central challenge arises when scaling results to industrial scale. 12 Small-scale computational and bench-top experiments are susceptible to variability in local particle packing, orientation, pore accessibility, and flow paths. At the industrial scale, orders of magnitude separate the dimensions of the packed bed from the individual particles, diminishing the effects of such local variations.…”

Section: Introductionmentioning

confidence: 99%

Capturing the effects of particle heterogeneity on adsorption in a fixed bed

et al. 2022

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To efficiently design new adsorption systems, industrial scale fixed beds are often scaled down to bench‐top experiments and/or modeled using computational fluid dynamics (CFD). While there has been considerable work exploring adsorption of volatile organics onto activated carbon fixed beds in the literature, this article attempts to reckon with the high variability of adsorption capacities observed at small scales and improve small‐scale experiments for industrial scale reactor design. This study integrates experimental results with CFD simulations, which can explicitly model system heterogeneities and their influence on adsorption by resolving local packing densities and flow paths. Activated carbon physical properties were determined through surface area analysis, proximate analysis, and toluene adsorption (measured via mass spectroscopy). Variability in the small‐scale systems was not attributed to surface area or carbon content, as is often stated, but instead was due to local packing density variations and the heterogeneity of particle size distributions.

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“…In Tables 2 and 3 are registered higher specific surface and a higher concentration of alkali metals, such as potassium and alkaline earth metals, such as calcium. These elements, extensively studied in literature are important for the sulphur compounds removal [29,30]. At 600 • C, the activated sample was also tested obtaining better performances, but it was not considered.…”

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confidence: 99%

H2S Removal with Sorbent Obtained from Sewage Sludges

et al. 2020

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Biochar obtained from sewage sludges are adopted for biogas cleaning. Sewage sludges are treated considering temperature, dwell time, activating agent, heating, and flow rate. The best performances achieved are registered considering the char produced at 400 °C using CO2 as an activating agent with a dwell time of 2 h. The adsorption capacity for the biogas cleaning CH4/CO2/H2S (20 ppm(v)) increased from 1.3 mg/g to 5.9 mg/g with the bed height. Future research with chemical activation processes will be made to improve the adsorption capacity achieved to produce cheaper sorbents than commercial ones.

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Experimental study on H2S adsorption on gasification char under different operative conditions

Cited by 26 publications

References 48 publications

Current Status of Energy Production from Solid Biomass in North-West Italy

Current Status of Energy Production from Solid Biomass in North-West Italy

Capturing the effects of particle heterogeneity on adsorption in a fixed bed

H2S Removal with Sorbent Obtained from Sewage Sludges

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