Biomass pyrolysis—A review of modelling, process parameters and catalytic studies

Sharma, Abhishek; Pareek, Vishnu; Zhang, Dongke

doi:10.1016/j.rser.2015.04.193

Cited by 551 publications

(246 citation statements)

References 157 publications

(253 reference statements)

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238

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“…The other part was pyrolysed before exiting the pyrolysis device. This process can be affected by many factors, such as secondary charring (52), catalysis in a polymerization reaction by the char (53), and particle shrinkage, which affect the "tar" content and char content (54). Therefore, even the powder samples will be different for late retention times in the Py-GC/MS results.…”

Section: Pyrolysis-gc/msmentioning

confidence: 99%

Effect and Mechanism of High-Pressure Processing: A Case Study of Flue-Cured Tobacco

Tan

Yang

et al. 2017

Beiträge Zur Tabakforschung International/Contributions to Tobacco Research

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Summary After a high-pressure processing (HPP) treatment sensory evaluation of flue-cured tobacco showed modifications. There was no significant difference (P > 0.05) between the routine chemical components (total sugar, reducing sugar, nicotine, and total nitrogen) of flue-cured tobacco after high-pressure processing treatment (HPP sample) and that of an untreated control group (CG). An overall judgement, which can be made from the observations of scanning electron microscopy (SEM), X-ray computed microtomography (micro-CT) and transmission electron microscopy (TEM), is that HPP could compress the inner tunnel and tissue gap in a flue-cured tobacco leaf. However, the ultrastructure, such as the cellular cytoskeleton, would not be changed. Compared with CG, the apparent density of the HPP sample rose by 19.3%, while the true density only rose by 1.4%. This also explained that the main effect of high-pressure processing on flue-cured tobacco was microstructure compression rather than compression on the ultrastructure level. The differences between the lamina (leaf-shaped) sample, which were caused by high-pressure processing, were reflected in terahertz time-domain spectroscopy (THz-TDS), simultaneous thermal analysis (STA), and pyrolysis gas chromatography/mass spectrometry (Py-GC/MS). When the same tests were carried out using a sample that was milled to a powder, however, these differences were nearly removed. The milling process destroyed most of the microstructure of the flue-cured tobacco lamina; therefore, the results of THz-TDS, STA, and Py-GC/MS confirmed the hypothesis: That 400 MPa high-pressure processing treatment minimally changes the ultrastructure of flue-cured tobacco and only changes its relatively larger microstructure.

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Section: Pyrolysis-gc/msmentioning

confidence: 99%

Effect and Mechanism of High-Pressure Processing: A Case Study of Flue-Cured Tobacco

Tan

Yang

et al. 2017

Beiträge Zur Tabakforschung International/Contributions to Tobacco Research

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“…Sıcaklık, ısıtma hızı, basınç, ortamda bulunan sürükleyici gaz, reaktör geometrisi, alıkonma süresi ve katalizör kullanımı pirolizi etkileyen parametreler olarak sıralanır. Bunların yanısıra hammaddenin parçacık boyutu, nem içeriği, organik yapısı, inorganik içeriği, gözenekliliği, sabit karbon oranı, elementel bileşimi gibi özellikleri de piroliz verimini ve ürün özelliklerini etkilemektedir [5][6][7][8]. Biyokütle piroliz süreçlerin tasarım, optimizasyon ve kontrolü için belirtilen parametrelerin incelenmesinin yanısıra, kinetik mekanizmasının da aydınlatılması da büyük önem taşımaktadır.…”

Section: Introductionunclassified

Termal analiz ile birleştirilmiş spektral yöntemlerin kullanımı ile biyokütle pirolizinin incelenmesi

Özsin¹

2018

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…It can be acquiredby extracting it from biomass usingthe pyrolysis process, which is also known as pyrolysis liquid (Bridgwater, 2012;Sharma et al, 2015). In the fast pyrolysis process, a thermal decomposition of biomass occurs without the involvement of oxygen inside the process (Bridgwater, 2012); this process occurs at a middle range temperature and with high rate flows on biomass particles, and the vapor leaves the reaction zone shortly after it is produced (Czernik&Bridgwater, 2004).…”

Section: Introductionmentioning

confidence: 99%

A Review of Improvements to the Liquid Collection System Used in the Pyrolysis Process for Producing Liquid Smoke

Abdullah¹,

Putra²,

Hakim³

et al. 2017

IJTech

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Liquid smoke can be produced by using the pyrolysis process. Biomass, as the raw material, is heated in a pyrolysis reactor to generate pyrolysis vapor. The pyrolysis vapors coming from the reactor are condensed in a liquid collection system to produce liquid smoke. A liquid collection system is a device used to convert smoke into liquid. Liquid smoke is often also called bio-oil, which is widely used as a fuel, as a preservative, and as other chemical substances. The objective of this paper was to provide the latest information on improving the liquid collection system from existing papers, and conclude with some inputs and application strategies. Studies were performed using the product parameters, equipment, and operational conditions referred to in the existing journal articles. Using a proper liquid collection system will give a better result in the liquid collection process.

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Biomass pyrolysis—A review of modelling, process parameters and catalytic studies

Cited by 551 publications

References 157 publications

Effect and Mechanism of High-Pressure Processing: A Case Study of Flue-Cured Tobacco

Effect and Mechanism of High-Pressure Processing: A Case Study of Flue-Cured Tobacco

Termal analiz ile birleştirilmiş spektral yöntemlerin kullanımı ile biyokütle pirolizinin incelenmesi

A Review of Improvements to the Liquid Collection System Used in the Pyrolysis Process for Producing Liquid Smoke

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