Effect of various blended fuels on syngas quality and performance in catalytic co-gasification: A review

Inayat, Muddasser; Sulaiman, Shaharin Anwar; Kurnia, Jundika C.; Shahbaz, Muhammad

doi:10.1016/j.rser.2019.01.059

Cited by 111 publications

(23 citation statements)

References 143 publications

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“…Air co-gasification of biomass with organic and waste matrices has been already tested [4][5][6], at least at experimental level, confirming that it can achieve higher conversion efficiencies and lower pollution when compared to other methods, such as standard combustion (incineration).…”

Section: Oxy-steam Co-gasification Approachmentioning

confidence: 83%

Oxy-steam co-gasification of sewage sludge and woody biomass for bio-methane production: an experimental and numerical approach

Gabbrielli

Frigo

Bressan³

2021

E3S Web Conf.

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Sewage sludge management is a current problem of extreme concern in Europe. Till now, the most frequent route for sludge management has been incineration or the reuse by shedding on agricultural land both directly or after composting. However, this last method is critically reconsidered lately owing to the increasing contamination of sewage sludge by chemicals, heavy metals, residual organic oils, etc.. In the present study, the performance of a steam-oxy gasification plant has been analyzed. The plant allows the thermo-chemical conversion of sewage sludge, together with woody biomass, into a gas mixture (syngas) composed by basic chemicals (synthetic hydrocarbons), suitable for subsequent industrial production of very high added-value products such as methane. In particular, a numerical model of methanation plant, composed by a downdraft gasifier, a syngas cleaning system and a Sabatier reactor, has been created within the commercial code Aspen-One and validated with the results obtained from a real scale air gasifier fed with sewage sludge and woody biomass. First results showed that the steam-oxy co-gasification process has a high energy conversion efficiency that reaches roughly 80% (i.e. produced syngas calorific value vs the dried feedstock calorific value) with an overall methane yield of about 20% (by mass) of the feedstock utilized.

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Section: Oxy-steam Co-gasification Approachmentioning

confidence: 83%

Oxy-steam co-gasification of sewage sludge and woody biomass for bio-methane production: an experimental and numerical approach

Gabbrielli

Frigo

Bressan³

2021

E3S Web Conf.

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“…However, some papers focus on the co-gasification of plastics and biomass-based wastes to negate the negative traits of both fractions, as the addition of plastics increases the overall calorific value of the mixture and biomass addition decreases the possibility of molten plastics getting stuck on the reactor wall [15]. As higher fractions of plastics lead to higher concentrations of hydrocarbons and tar in the product gas [5], the application of a tar-cracking catalyst is necessary [16].…”

Section: Introductionmentioning

confidence: 99%

Gasification of RDF and Its Components with Tire Pyrolysis Char as Tar-Cracking Catalyst

2020

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The composition of gas produced by the gasification of refuse-derived fuel (RDF) can be affected by the content of individual components of RDF and their mutual interactions. In this work, plastics, paper, wood, textile and RDF were gasified in a two-stage gasification system and the obtained tar yields and product gas quality were compared. The two-stage reactor consisted of an air-blown gasifier and a catalytic reactor filled with carbonized tire pyrolysis char as the tar-cracking catalyst. Tire pyrolysis char is a promising alternative to expensive catalysts. The impact of temperature and catalyst amount on the tar yield and gas composition was investigated. Theoretical oxygen demand for all material classes was calculated and its effect on gas composition and tar yield is discussed. The results indicate that the gasification of plastics produces the highest amount of tar and hydrocarbon gases, while the CO2 content of the product gas remains the lowest compared to all other materials. On the other hand, the paper fraction produced hydrogen-rich gas with low tar content. The gasification of RDF at 700 °C provided the lowest tar yield compared to all other materials, indicating positive synergic effects of lignocellulosic biomass and plastics in tar reduction. The significance of these interactions was suppressed at the highest temperature of 900 °C, as the thermal cracking of tar became dominant. For CO2 content, a negative synergic effect (higher CO2 concentration) was observed.

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“…1 In addition, there are several other thermal conversion technologies, such as pyrolysis and gasification, that are also considered to be efficient for agricultural waste disposal. [2][3][4][5][6][7] However, serious technical problems occur during these thermal conversion processes of biomass fuels. During pyrolysis, combustion, or gasification, high contents of alkali metals in biomass would enter the gas phase, which can cause ash deposition and slagging on the duct and the heating surface of thermal conversion equipments.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, converting bioenergy into thermal energy through combustion is one of the important methods for the treatment of agricultural waste 1 . In addition, there are several other thermal conversion technologies, such as pyrolysis and gasification, that are also considered to be efficient for agricultural waste disposal 2–7 …”

Section: Introductionmentioning

confidence: 99%

A study on benzene release during water washing of biomass

Deng

Long

et al. 2020

Asia-Pacific J Chem Eng

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Water washing can effectively remove Na, K, and Cl in biomass, which can cause fouling, slagging, and corrosion during thermal conversion process of biomass fuels. However, it is necessary to dispose the leachates appropriately after water washing. Characterization of organic matters in leachates should be performed first, which is beneficial to find an effective way to dispose the leachate. In this study, four biomass materials are washed with the deionized water at 30 C, 60 C, and 90 C. The release of toluene and styrene is studied. The results show that yields of organic matters for corn stalk and wheat straw are the highest relatively, of which the eventual values are 8% and 15%, respectively. Less toluene and styrene are released at 30-60 C than that at 90 C for wheat straw. But the release of toluene and styrene in rice hull leachate shows the opposite trend. The concentration of styrene in leachates reaches a minimum value at 60 C. The corresponding values are 0.017 mg L −1 for wheat straw and 0.15 mg L −1 for rice hull. But none is detected in corn stalk and sorghum stalk leachates. In addition, variations of toluene and styrene concentrations are obviously different with different washing temperatures.

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Effect of various blended fuels on syngas quality and performance in catalytic co-gasification: A review

Cited by 111 publications

References 143 publications

Oxy-steam co-gasification of sewage sludge and woody biomass for bio-methane production: an experimental and numerical approach

Oxy-steam co-gasification of sewage sludge and woody biomass for bio-methane production: an experimental and numerical approach

Gasification of RDF and Its Components with Tire Pyrolysis Char as Tar-Cracking Catalyst

A study on benzene release during water washing of biomass

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