A review on microwave assisted pyrolysis of coal and biomass for fuel production

Mushtaq, Faisal; Mat, Ramli; Ani, Farid Nasir

doi:10.1016/j.rser.2014.07.073

Cited by 284 publications

(81 citation statements)

References 147 publications

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“…In the pyrolysis process, biomass is converted to biochar, bio-oil, biogas, and activated carbon depending on the biomass feedstock characteristics and pyrolysis conditions 33) . Pyrolysis is categorized into three types: slow, fast and flash pyrolysis processes, according to the reaction rate, residence time, and heating rate 33), 34) . The heating rate and reaction temperature of the slow, fast and flash pyrolysis processes are 0.1-1 /s and 280-680 , 10-200 /s and 580-980 , and more than 1000 /s and 780-1030 , respectively 33) .…”

Section: Pyrolysismentioning

confidence: 99%

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Recent Progress on Microwave Processing of Biomass for Bioenergy Production

Mitani

2018

J. Jpn. Petrol. Inst.

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Recent studies on microwave processing of biomass for bioenergy production are reviewed. Statistical review of published research papers related to microwave and biomass was used to classify microwave processing used in bioenergy production. Microwaves have potential for use in various processing methods such as pretreatment, gasification, pyrolysis, transesterification, extraction, liquefaction and drying, to achieve low energy consumption, rapid reaction time, and high production yield. Microwave-assisted processing technologies for the second generation biomass (lignocellulosic biomass) and third generation biomass (algae and seaweeds) are described, as first generation biomass (food crops such as sugar canes, corns and grains) is often discussed as a "fuel versus food" issue. Scale-up strategies and discussions on energy consumption, cost, and efficiency of the microwave processing are also described with reference to specific examples of microwave reactors. Understanding of dielectric properties of biomass mixture is crucially important for designing an efficient and robust microwave reactor. Microwave processing is a future promising technology for renewable energy production, although its industrialization is still unfulfilled.

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Section: Pyrolysismentioning

confidence: 99%

“…Several review papers have described microwave-assisted pyrolysis 33) 36) . Microwave-assisted pyrolysis generally depends on microwave absorber such as carbonaceous, inorganic, and metal oxide materials 34) . Microwave-assisted pyrolysis without the absorber is possible, but requires high microwave power of 1000-2000 W 37) .…”

Section: Pyrolysismentioning

confidence: 99%

Recent Progress on Microwave Processing of Biomass for Bioenergy Production

Mitani

2018

J. Jpn. Petrol. Inst.

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“…[13,16] Membrane  Separate organic material effectively [14,17] Pyrolysis is a heating process of materials without the presence of oxygen. Generally, conventional pyrolysis transfers the heat from outer surface to the center of the material by external heating which includes conduction, convection and radiation [18]. In conventional heating, material is heated volumetrically by heating energy is dissipated through the material from the surface by means of convection, conduction and radiation [19].…”

Section: Treatment Details Referencesmentioning

confidence: 99%

Effect of Mass Loading and Microwave Absorber Application Method on the Product From Microwave Assisted Pyrolysis of Palm Oil Mill Effluent

Januri

Idris²,

Akhawan

et al. 2017

MJAS

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Approximately, about 50 million tons of Palm Oil Mill Effluent (POME) is produced every year, however, discharge of POME to open water source will cause negative impact to environment. High production of POME makes it impossible to dispose at the disposal company, therefore, in-situ treatment has been developed. Current disposal method implemented by palm oil industries is through biodegradable pond. This method is applied due to high water content in POME about 90% of water. Microwave assisted pyrolysis would be an alternative method to deal with the POME since not only can disposed but also can convert to valuable material such as solid char and pyrolytic oil. In this paper, effect of mass loading of POME at a range of 100 to 500 grams with additional activated carbon (AC) was studied. Microwave power level, radiation time and mixing ratio of AC were set constant at 1000 W, 30 minutes and 5%, respectively. Product yields of solid and liquid were analyzed for the best process performance. Solid char obtained has a potential to be utilized as solid fuel since its energy content was >20 MJ/kg and has high carbon content at >80%. Meanwhile, about 20% of chemical content in the pyrolytic oil has the carbon number in the range of C 1 to C 10 .Keywords: mass loading, microwave absorber, microwave-assisted pyrolysis, palm oil mill effluent Abstrak Dianggarkan lebih kurang 50 juta ton Sisa Buangan Kilang Kelapa Sawit (POME) dihasilkan setiap tahun. Pembuangan POME ke sumber air semulajadi seperti sungai akan menyebabkan impak negatif kepada alam sekitar. Penghasilan POME yang tinggi menyebabkan ianya mustahil untuk dilupuskan oleh syarikat pelupusan, oleh yang demikian, rawatan in-situ dibangunkan. Cara pelupusan terkini oleh industri kelapa sawit adalah melalui kaedah kolam bio-degradasi. Kaedah ini diaplikasikan berikutan kandungan air yang tinggi di dalam POME iaitu lebih kurang 90% daripada isi kandungannya. Oleh yang demikian, kaedah menambahbaik pirolisis bantuan gelombang mikro (MAP) digunakan dan sekaligus POME dapat dilupuskan dan menukar hasil yang bermanfaat seperti arang pepejal and minyak pirolisis. Di dalam kajian ini, kesan berat kandungan POME di dalam anggaran 100 g ke 500 g dengan penambahan karbon aktif diberi tumpuan. Kadar kekuatan gelombang mikro, masa radiasi dan nisbah pencampuran karbon aktif masing -masing dimalarkan pada kadar 1000 W, 30 minit dan 5%. Penghasilan produk arang pepejal dan minyak pirolitik dianalisis untuk menentukan kadar terbaik penghasilannya. Arang pepejal yang terhasil mempunyai potensi sebagai sumber tenaga dan mempunyai kapasiti tenaga sekurang-kurangnya >20 MJ/kg dan mengandungi kandungan

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“…Microwave pyrolysis has been explored as a promising technique to convert waste materials to produce potentially useful pyrolysis products [5][6][7][8][9][10]. It is a thermochemical conversion method performed in an inert atmosphere from which oxygen is excluded to produce liquid oil, gases and char product.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis Recovery of Waste Shipping Oil Using Microwave Heating

et al. 2016

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Abstract:This study investigated the use of microwave pyrolysis as a recovery method for waste shipping oil. The influence of different process temperatures on the yield and composition of the pyrolysis products was investigated. The use of microwave heating provided a fast heating rate (40 • C/min) to heat the waste oil at 600 • C. The waste oil was pyrolyzed and decomposed to form products dominated by pyrolysis oil (up to 66 wt. %) and smaller amounts of pyrolysis gases (24 wt. %) and char residue (10 wt. %). The pyrolysis oil contained light C 9 -C 30 hydrocarbons and was detected to have a calorific value of 47-48 MJ/kg which is close to those traditional liquid fuels derived from fossil fuel. The results show that microwave pyrolysis of waste shipping oil generated an oil product that could be used as a potential fuel.

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A review on microwave assisted pyrolysis of coal and biomass for fuel production

Cited by 284 publications

References 147 publications

Recent Progress on Microwave Processing of Biomass for Bioenergy Production

Recent Progress on Microwave Processing of Biomass for Bioenergy Production

Effect of Mass Loading and Microwave Absorber Application Method on the Product From Microwave Assisted Pyrolysis of Palm Oil Mill Effluent

Pyrolysis Recovery of Waste Shipping Oil Using Microwave Heating

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