Gas cleaning for waste applications (syngas cleaning for catalytic synthetic natural gas synthesis)

Courson, Claire; Gallucci, Katia

doi:10.1016/b978-0-12-815554-7.00008-8

Cited by 17 publications

(26 citation statements)

References 192 publications

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“…Based on the feedstock characteristics and gasification process, the size and the composition of particulate matter can vary broadly. The major constituents of particulate matters are residual solid carbon and inorganic compounds such as alkali and alkaline earth metals, silica, and iron, whereas, the minor constituents are arsenic, selenium, antimony, zinc and lead (Courson and Gallucci, 2019). Particulate matter can cause severe corrosion, erosion and fouling if not removed properly.…”

Section: Tablementioning

confidence: 99%

“…Particulate matter can be removed using a variety of methods, including warm and hot gas removal, inertial separation, filters, scrubbing with a liquid and electrostatic precipitator. Table 3 summarises the hot gas particle matter removal technologies, their efficiency and operating conditions (Courson and Gallucci, 2019;Dayton et al, 2019;Prabhansu et al, 2015;Woolcock and Brown, 2013).…”

Section: Tablementioning

confidence: 99%

“…Based on its operating principle and removal efficiency cold gas wet scrubbing can be ranked in the following order: spray scrubber > wet dynamic scrubber > cyclonic spray scrubber > impactor scrubber > venturi scrubber > electrostatic scrubber. Table 4 summarises the cold gas particulate matter removal technologies and their removal efficiency and working principle (Courson and Gallucci, 2019;Dayton et al, 2019;Prabhansu et al, 2015;Woolcock and Brown, 2013).…”

Section: Contaminantmentioning

confidence: 99%

“…Based on the prospective application of syngas and gasifier types, these methodologies are applicable for both primary (in-situ) and secondary tar removal (postgasifier). Table 5 tabulates the working principal, advantages and disadvantages of these processes (Chen et al, 2019;Courson and Gallucci, 2019;Islam, 2020;Prabhansu et al, 2015;Saleem et al, 2020).…”

Section: Tarsmentioning

confidence: 99%

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A review on the production of renewable aviation fuels from the gasification of biomass and residual wastes

Shahabuddin

Alam

Krishna

et al. 2020

Bioresource Technology

213

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Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre -including this research content -immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Section: Tablementioning

confidence: 99%

Section: Tablementioning

confidence: 99%

Section: Contaminantmentioning

confidence: 99%

Section: Tarsmentioning

confidence: 99%

See 2 more Smart Citations

A review on the production of renewable aviation fuels from the gasification of biomass and residual wastes

Shahabuddin

Alam

Krishna

et al. 2020

Bioresource Technology

213

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“…This work was addressed to investigate the behavior of commercial Ni-catalytic pellets at conditions closer to those of interest for biomass gasification, where sulfur is brought about by biomass itself and is found either in the ashes and in the product gas as H 2 S and COS (carbonyl sulfide), in small concentrations (from 10 to 100 ppm, usually), although these concentrations were sufficient to affect the activity of Ni catalysts. 26 A kinetic law was derived by fitting the experimental results, which were extended to take into account the influence of sulfur species on the performance of the catalytic treatment for tar abatement.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Characterization of Tar Reforming on Commercial Ni-Catalyst Pellets Used for In Situ Syngas Cleaning in Biomass Gasification: Experiments and Simulations under Process Conditions

Giuliano

Foscolo

Carlo

et al. 2020

Ind. Eng. Chem. Res.

Self Cite

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Filtering-catalytic candles, filled with an annular packed-bed of commercial Ni-catalyst pellets (∼600 g), were successfully tested for in situ syngas cleaning in a fluidized-bed biomass steam gasifier [ Fuel Process. Technol. 2019 191 44 53 ]. Those tests enabled the macroscopic evaluation of gasification and gas cleaning as a whole, requiring a more specific assessment of the catalyst performance inside the filter candle. To this end, steam reforming tests of tar key compounds (naphthalene and toluene; thiophene in traces to observe sulfur deactivation) were performed with a laboratory-scale packed-bed reactor containing the same catalyst pellets (<7 g). A lumped kinetics was derived, referred to a pseudocomponent representing tars. This was then validated by simulation of the annular catalytic packed bed inside the filter candle, obtaining numerical results in fair agreement with gasifier outputs. As a result, the lab-scale investigation with a small amount of catalyst provides reliable predictions of tar catalytic reforming in industrial-scale filtering-catalytic candles.

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Steam reforming of tar in hot syngas cleaning by different catalysts: Removal efficiency and coke layer characterization

et al. 2022

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Syngas produced by biomass and waste gasification processes must be adequately clean of tar compounds before being utilized in value-added applications. Syngas cleaning by tar cracking at high temperatures is a promising technique that can utilize different kinds of catalysts. However, their use is limited by the deposition of coke layers, which induces a masking phenomenon on the active surface, and, consequently, the rapid deactivation of the catalyst. This study addresses how the temperature (750 and 800 C) and the steam concentration (0% and 7.5%) can affect the extent of water-gas and reforming reactions between steam and coke deposits. Two catalysts were used: a market-available activated carbon and an iron-based alumina catalyst.The tests showed better performance of the Fe/γ-Al 2 O 3 catalyst. A mass increase of the bed was measured in tests with both the catalysts, which confirms the deposition of the coke layer produced by tar dehydrogenation and carbonization. Scanning electronic microscopy-energy-dispersive X-ray analysis (SEM-EDX) and Raman spectroscopy were utilized to investigate the nature of coke layers over the catalyst surface, with the aim of acquiring information about their reactivity towards the water gas reaction. SEM-EDX observations indicate that the thickness of these carbon layers is less than 2 μm. Raman spectra suggest a negligible effect of the reaction temperature in the tested range and, in particular, that the amorphous nature of coke layers deposited in the presence of steam is relatively more graphitic than that obtained without steam.

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Gas cleaning for waste applications (syngas cleaning for catalytic synthetic natural gas synthesis)

Cited by 17 publications

References 192 publications

A review on the production of renewable aviation fuels from the gasification of biomass and residual wastes

A review on the production of renewable aviation fuels from the gasification of biomass and residual wastes

Kinetic Characterization of Tar Reforming on Commercial Ni-Catalyst Pellets Used for In Situ Syngas Cleaning in Biomass Gasification: Experiments and Simulations under Process Conditions

Steam reforming of tar in hot syngas cleaning by different catalysts: Removal efficiency and coke layer characterization

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