A critical review on co-gasification and co-pyrolysis for gas production

Mariyam, Sabah; Shahbaz, Muhammad; Al‐Ansari, Tareq; Mackey, Hamish R.; McKay, Gordon

doi:10.1016/j.rser.2022.112349

Cited by 67 publications

(13 citation statements)

References 140 publications

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“…The typical energy value of pyrolitic gases is 10 to 20 MJ/m 3 . Before the practical use of pyrolysis gas, the elimination of undesirable components such as tar, dust, aerosols, water vapor, HCN, NH3, and H2S is required [43].…”

Section: Pyrolytic Gasmentioning

confidence: 99%

Pyrolysis of Waste Biomass – Technical and Process Achievements, and Future Development – A Review

Igliński¹,

Kujawski²,

Kiełkowska³

2023

Preprint

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Pyrolysis has been applied in the human economy for many years, and it has become a significant alternative to the production of chemical compounds, including biofuels. The article focuses mostly on recent achievements in the technical and processing aspects of pyrolysis. This review provides an overview of the recent advanced pyrolysis technology used in gas, bio-oil, and biochar production. The key parameters to maximize the production of specific chemical compounds were discussed and considered during the construction of the reactors. The emphasis is put on optimizing the process parameters, technical requirements, and renewable energy use in the process and conception to improve the efficiency of product production. The application of pyrolysis gas, oil, and biochar as valuable chemical compounds are related to the intensifying effects of climate change, biofuel production, and waste management in accordance with the principles of sustainable development.

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Section: Pyrolytic Gasmentioning

confidence: 99%

Pyrolysis of Waste Biomass – Technical and Process Achievements, and Future Development – A Review

Igliński¹,

Kujawski²,

Kiełkowska³

2023

Preprint

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“…Mariyam et al 52 76.56% and 93.75% of Scopus and WoS database publications are article document type, respectively. In addition, both databases revealed that only 6% of total publications are review articles, a very small proportion for any academic field.…”

Section: Midilli Et Al 51 2022 Co-gasification and Co-pyrolysis Of Bi...mentioning

confidence: 99%

“…99 Typically, kinetic and equilibrium models are created for the gasification process. 52 Due to the intricacy of the processes that occur during co-gasification (resource intensive, time consuming, complex tar cracking reactions, gas−gas reactions, and solid−gas reactions, as well as insufficient experimental data), a comprehensive literature review on biomass and plastic cogasification modeling is still lacking. The modeling studies based on biomass−plastic co-gasification, which are reviewed in this section, have only been reported by a few researchers.…”

Section: Co-gasification Of Lignocellulosic Biomass (Lcb) and Plasticsmentioning

confidence: 99%

“…76 The intrinsic properties of waste plastics, such as spectacular tar formation, adhesiveness, high volatile content, and low heat conductivity, impede their valorization in existing gasification technologies and pose a formidable barrier to the deployment of the mono-gasification of plastic. 52 Various reactors, such as spouted beds, fluidized beds, plasma reactors, and fixed beds, are used for gasification. Table 3 presents the several types of reactors utilized for gasifying biomass and plastics with their benefits and limits.…”

Section: Co-gasification Of Lignocellulosic Biomass (Lcb) and Plasticsmentioning

confidence: 99%

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A Critical Outlook on Lignocellulosic Biomass and Plastics Co-Gasification: A Mini-Review

2022

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The generation of solid waste and lignocellulosic biomass (LCB) residues and their environmentally responsible disposal have emerged as major global challenges. A major part (around 12%) of solid waste is plastic, and the increased accumulation has become a serious public health and environmental hazard. For the combined management of residual LCB biomass and plastic waste, thermochemical conversion, particularly gasification, appears to be a potential alternative. Gasification is a process that turns high carbon-containing solid feedstocks into a combustible gas mixture known as syngas or producer gas based on the gasifying agent. Co-gasification (the gasification of two distinct feedstocks) has the potential to facilitate eco-friendly plastic waste disposal while also contributing to the production of green energy. The literature on the co-gasification of LCB and plastic waste is reviewed in the current study. These are mostly experimental studies on biomass and plastics carried out in various reactors with multiple gasifying mediums. The synergistic effects of various feedstock compositions and attributes are examined during co-gasification using experimental studies and reactor-level modeling. The impacts of operating parameters on the gas yield, tar formation, and gasifier performance are also analyzed. Finally, the challenges, research gaps, and the way toward commercialization in the context of co-gasification of various combinations of LCB and plastics are presented.

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“…Furthermore, due to the lack of support in technological advancements in some countries in Asia and Africa, there needs to be an improvement in related policy frameworks to enhance research and development in the field [ 16 , 17 ]. Given the ability of pyrolysis to process different wastes together [ 18 ], there is a need for related policy reforms that would enable use of these waste-derived materials in sensitive applications such as drinking water treatment, following appropriate safety demonstration under strict testing protocols.…”

Section: Introductionmentioning

confidence: 99%

A review of prospects and current scenarios of biomass co-pyrolysis for water treatment

Zuhara

Mackey

Al‐Ansari

et al. 2022

Biomass Conv. Bioref.

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With ever-growing population comes an increase in waste and wastewater generated. There is ongoing research to not only reduce the waste but also to increase its value commercially. One method is pyrolysis, a process that converts wastes, at temperatures usually above 300 °C in a pyrolysis unit, to carbon-rich biochars among with other useful products. These chars are known to be beneficial as they can be used for water treatment applications; certain studies also reveal improvements in the biochar quality especially on the surface area and pore volume by imparting thermal and chemical activation methods, which eventually improves the uptake of pollutants during the removal of inorganic and organic contaminants in water. Research based on single waste valorisation into biochar applications for water treatment has been extended and applied to the pyrolysis of two or more feedstocks, termed co-pyrolysis, and its implementation for water treatment. The co-pyrolysis research mainly covers activation, applications, predictive calculations, and modelling studies, including isotherm, kinetic, and thermodynamic adsorption analyses. This paper focuses on the copyrolysis biochar production studies for activated adsorbents, adsorption mechanisms, pollutant removal capacities, regeneration, and real water treatment studies to understand the implementation of these co-pyrolyzed chars in water treatment applications. Finally, some prospects to identify the future progress and opportunities in this area of research are also described. This review provides a way to manage solid waste in a sustainable manner, while developing materials that can be utilized for water treatment, providing a double target approach to pollution management.

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A critical review on co-gasification and co-pyrolysis for gas production

Cited by 67 publications

References 140 publications

Pyrolysis of Waste Biomass – Technical and Process Achievements, and Future Development – A Review

Pyrolysis of Waste Biomass – Technical and Process Achievements, and Future Development – A Review

A Critical Outlook on Lignocellulosic Biomass and Plastics Co-Gasification: A Mini-Review

A review of prospects and current scenarios of biomass co-pyrolysis for water treatment

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