Microwave Pyrolysis for Conversion of Materials to Energy: A Brief Review

Mokhtar, Noriznan; Omar, Rozita; Idris, Azni

doi:10.1080/15567036.2010.493923

Cited by 28 publications

(18 citation statements)

References 43 publications

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“…microwave power, temperature, residence time or concentration of different microwave susceptors additives). Nevertheless, these studies have not focused on the relevance of this technique for the development of industrial prototypes beyond the commonly used laboratory-scale rigs although some of them have considered scale-up issues [43,[46][47][48][49][50][51]. Yet the technological transfer of microwave processes to industrial scale is virtually non-existent.…”

Section: Figurementioning

confidence: 99%

Microwave pyrolysis of biomass for bio-oil production: Scalable processing concepts

Beneroso

Monti

Kostas

et al. 2017

Chemical Engineering Journal

172

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The pursuit of sustainable hydrocarbon alternatives to fossil fuels has prompted an acceleration in the development of new technologies for biomass processing.Microwave pyrolysis of biomass has long been recognised to provide better quality bio-products in shorter timescales compared to conventional pyrolysis. Although this topic has been widely assessed and many investigations are currently ongoing, this article gives an overview beyond the physico-chemical pyrolysis process and covers engineering aspects and the limitations of microwave heating technology. Herein, we provide innovative scalable concepts to perform the microwave pyrolysis of biomass on a large scale, including essential energy and material handling requirements. Furthermore, some of the possible socio-economic and environmental implications derived from the use of this technology in our society are discussed. Such potential concepts are expected to assist the needs of the industrial bioenergy community to move this largely studied process upwards in scale.

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Section: Figurementioning

confidence: 99%

Microwave pyrolysis of biomass for bio-oil production: Scalable processing concepts

Beneroso

Monti

Kostas

et al. 2017

Chemical Engineering Journal

172

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“…Pyrolysis has shown potential for transforming used tyres into three components of useful products: carbonaceous solids, liquid hydrocarbons and non-condensable gases 32 . Some major pyrolysis variants such as vacuum pyrolysis 39 , and microwave pyrolysis 3 . Ultrasonic devulcanisation 38 , 40 and supercritical fluid depolymerisation 41 , 42 are shown in Fig.…”

Section: Production Methodologies and Fuel Characterisationmentioning

confidence: 99%

“…The conversion of waste to energy presents an opportunity to replace conventional fuels at the same time as reducing the waste burden on the planet 2 . Solid waste disposal is a serious global issue that is leading to economic and environmental complications 3 . In the manufacturing and automotive industries, there has been an increase in the quantity of waste rubber and tyres 4 , 5 , an issue that needs a sustainable solution.…”

Section: Introductionmentioning

confidence: 99%

Diesel engine performance and emissions with fuels derived from waste tyres

Verma

Zare

Jafari

et al. 2018

Sci Rep

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The disposal of waste rubber and scrap tyres is a significant issue globally; disposal into stockpiles and landfill poses a serious threat to the environment, in addition to creating ecological problems. Fuel production from tyre waste could form part of the solution to this global issue. Therefore, this paper studies the potential of fuels derived from waste tyres as alternatives to diesel. Production methods and the influence of reactor operating parameters (such as reactor temperature and catalyst type) on oil yield are outlined. These have a major effect on the performance and emission characteristics of diesel engines when using tyre derived fuels. In general, tyre derived fuels increase the brake specific fuel consumption and decrease the brake thermal efficiency. The majority of studies indicate that NOx emissions increase with waste tyre derived fuels; however, a few studies have reported the opposite trend. A similar increasing trend has been observed for CO and CO2 emissions. Although most studies reported an increase in HC emission owing to lower cetane number and higher density, some studies have reported reduced HC emissions. It has been found that the higher aromatic content in such fuels can lead to increased particulate matter emissions.

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“…The performance of MW irradiation is superior compared with that of conventional heating methods [2][3][4][5][6][7][8][9][10][11][12][13]. MW irradiation exhibits higher heating rates, reduced activation energies [14,15], increased reaction rates [16][17][18][19][20], improved energy efficiency, and reduced equipment size [21].…”

Section: Introductionmentioning

confidence: 99%