Characterisation of slow pyrolysis products from segregated wastes for energy production

Phan, Anh N.; Ryu, Changkook; Sharifi, Vida N.; Swithenbank, J.

doi:10.1016/j.jaap.2007.09.001

Cited by 109 publications

(55 citation statements)

References 25 publications

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“…The liquid products from the pyrolysis of MSW is often very complex in nature [10,[27][28][29] and contains a mixture of oxygenated and non-oxygenated hydrocarbons. In order to investigate the effects of the heating rate on the pyrolysis liquid, the liquids from the pyrolysis of RDF at the different heating rates were analysed by GC/MS/MS.…”

Section: Composition Of Liquid Productsmentioning

confidence: 99%

“…Miskolczi et al [5] also detected the presence of alkanes and alkenes from RDF pyrolysis at 550 °C. Phan et al [27] detected increases in the presence of aromatics in the oil from waste pyrolysis at 700 °C. While Ates et al [30] also reported an increase in the yield of single and multi-ringed aromatic groups with increasing temperature up to 800 °C from the pyrolysis of corncob.…”

Section: Composition Of Liquid Productsmentioning

confidence: 99%

“…The GCV of the solid product from the lower heating rate pyrolysis is higher at 18.45 MJ Kg -1 , compared with a CV of 16.37 MJ Kg -1 for the higher heating rate as shown in Table 2. This difference could be as a result of lower ash content per mass basis [27] and residual volatile matter within the structure of the pyrolysis solid produced from the lower heating rate process. This difference could also be as a result of the Boudouard reaction which is expected to become significant during higher heating rate pyrolysis.…”

Section: Composition Of Liquid Productsmentioning

confidence: 99%

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Products from the high temperature pyrolysis of RDF at slow and rapid heating rates

Efika

Onwudili

Williams

2015

Journal of Analytical and Applied Pyrolysis

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The high-temperature pyrolysis behaviour of a sample of refuse derived fuel (RDF) as a model of municipal solid waste (MSW) was investigated in a horizontal tubular reactor between 700 -900 °C , at varying heating rates, and at an extended vapour residence time.Experiments were designed to evaluate the influence of process conditions on gas yields as well as gas and oil compositions. Pyrolysis of RDF at 800 °C and at rapid heating rate resulted in the gas yield with the highest CV of 24.8 MJ m -3 while pyrolysis to 900 °C at the rapid heating rate generated the highest gas yield but with a lower CV of 21.3 MJ m -3 . A comparison of the effect of heating rates on oil products revealed that the oil from slow pyrolysis, contained higher yields of more oxygenates, alkanes (C8 to C39) and alkenes (C8 to C20), while the oil from rapid pyrolysis contained more aromatics, possibly due to the promotion of Diels-Alder-type reactions. IntroductionThere is a continuously growing need for new and sustainable sources of energy in the world as our populations grow and countries become more developed. There is also an increased demand for renewable sources of energy, resulting in increased interests in the processing of municipal solid waste (MSW) as an energy resource both by biochemical and thermochemical means. Among the thermochemical technologies for MSW conversion, pyrolysis is arguably, the most versatile in relation to the flexibility of obtaining primary products. The application of pyrolysis technology to MSW is quite promising as the energy content of the MSW can be extracted in the form of primary pyrolysis products including gas,

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Section: Composition Of Liquid Productsmentioning

confidence: 99%

Section: Composition Of Liquid Productsmentioning

confidence: 99%

Section: Composition Of Liquid Productsmentioning

confidence: 99%

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Products from the high temperature pyrolysis of RDF at slow and rapid heating rates

Efika

Onwudili

Williams

2015

Journal of Analytical and Applied Pyrolysis

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“…Sedangkan melakukan penelitian pirolisis lamban dari sampah kota terpisahkan dalam packed bed pyrolizer dengan berat sampel yang cukup banyak. Hasilnya diperoleh bahwa persentase char yang dihasilkan berkisar antara 21-34%, tar 34-46% dan gas 23-43% pada kondisi temperatur pirolisis 350-700° C. Dari hasil pemodelan diketahui bahwa pada cardboard dan limbah tekstil, pemecahan tar tidak cukup untuk menimbulkan kenaikan pelepasan tar , hal ini diduga berhubungan dengan kandungan mineral yang dimiliki, hal tersbut diperkuat oleh Phan et al (2008) melakukan penelitian mengenai karakterisasi produk yang dihasilkan dari proses slow pyrolisis sampah. Hasil penelitian menunjukkan bahwa untuk menghasilkan produk char dan tar yang optimum, maka temperature akhir proses slow pyrolisis seyogyanya di bawah 500° C.…”

Section: Pendahuluanunclassified

Pengolahan Sampah Kota Terseleksi Menjadi Refused Derived Fuel Sebagai Bahan Bakar Padat Alternatif

Himawanto¹,

P²,

Saptoadi³

et al. 2012

JTI

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ABSTRAK Limbah Padat Kota (LMK) memiliki potensi besar sebagai bahan baku terbarukan untuk menghasilkan energi modern melalui termokimia yang disebut pyrolyis, dan proses densifikasi untuk membentuk. Refused Derived Fuels (RDF), PENDAHULUANSampah merupakan bahan yang terbuang dari hasil aktivitas manusia maupun proses alam yang tidak memiliki nilai ekonomi lagi, bahkan dapat menimbulkan dampak yang negatif. Selama ini sampah kota menjadi salah satu masalah lingkungan yang memerlukan penanganan yang sangat serius. Masalah yang sering muncul dalam penanganan sampah kota yang terus bertambah jumlahnya adalah biaya operasional yang tinggi dan semakin sulitnya ruang yang pantas untuk pembuangan, sehingga dalam penanganan sampah kota sering menimbulkan dampak yang buruk terhadap lingkungan. Pada umumnya, sampah dapat dibagi menjadi dua golongan yaitu sampah organik dan anorganik. Selama ini penanganan sampah kota di negara-negara berkembang seperti Indonesia hanya menimbun dan membakar langsung sampah di udara terbuka pada TPA (tempat pembuangan akhir). Hal ini juga tidak bisa mengurangi 100% sampah dan akan menimbulkan permasalahan yaitu produksi yang dihasilkan zat-zat polutan yang dapat mencemari lingkungan yaitu gas-gas hasil pembakaran seperti CO 2 , NO x , SO 2 , dan lain-lain.

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“…These results gave an indication that eucalyptus sawdust could be suitable for bio-oil production due to its high volatile level, while pine sawdust for syngas production since it contains high ash content. Phan (2008), the main products from slow pyrolysis of key segregated waste materials were characterized for mass yield, energy content, elemental composition, and chemical compounds. About 200 g of waste wood, cardboard or textile residues were pyrolysed in a small packed bed reactor at a final temperature ranging from 350 to 700 oC with a slow heating rate.…”

Section: Introductionmentioning

confidence: 99%

Untitled

et al. 2017

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The use of fossil fuels produces carbon dioxide (CO2). Carbon dioxide is one of the greenhouse gasses that contributes to global climate change. Due to this issue, there is increasing the requirement for the use of renewable materials and development of the additional sustainable process. Agricultural waste that has the property of fast growth, is an alternative renewable energy. In this work the slow pyrolysis of selected agricultural wastes mixture (cassava peel-rice straw, rice straw-rice husk, and cassava peel-rice husk) were studied to determine thermal degradation behavior of the biomass. The process was conducted in a fixed bed reactor at temperatures 325 °C, at 10 °C/min heating rate and at 10 min holding time. Results revealed that the moisture content of agricultural wastes were 4.40 % (cassava peel-rice husk), 5.48 % (rice straw-rice husk) and 8.12 % (cassava peelrice straw). The devolatilization process of the biomass was taken place in the temperature range from 189 o C to 325 o C. The volatile matter of each sample was 61.5% for cassava peel-rice husk, 58.5 % for rice straw-rice husk and 52.5 % for cassava peel-rice straw.

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Characterisation of slow pyrolysis products from segregated wastes for energy production

Cited by 109 publications

References 25 publications

Products from the high temperature pyrolysis of RDF at slow and rapid heating rates

Products from the high temperature pyrolysis of RDF at slow and rapid heating rates

Pengolahan Sampah Kota Terseleksi Menjadi Refused Derived Fuel Sebagai Bahan Bakar Padat Alternatif

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