The Efficient and Sustainable Pyrolysis and Gasification of Biomass by Catalytic Processes

Tong, Xinli; Chen, Hui; Hu, Jianli; Bi, Yutie; Sun, Zhe; Fan, Wenyuan

doi:10.1002/cben.201400028

Cited by 22 publications

(21 citation statements)

References 261 publications

(210 reference statements)

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“…Pyrolysis conversion mechanisms have been well studied by many researchers, and an excellent diagrammatic summary of the decomposition processes of biomass components is available [1]. Generally, the reaction pathways include the cracking, decarbonylation, decarboxylation, hydrocracking, hydrodeoxygenation and hydrogenation of the biomass components.…”

Section: Introductionmentioning

confidence: 99%

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

Nzihou

Stanmore

Lyczko

et al. 2019

Energy

129

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Relevant literature which deals with the presence of metals during the catalytic pyrolysis of biomass is reviewed. Only those conditions where the metal was in intimate contact with the biomass components are included. Cellulose, hemicellulose and lignin all fuse during the early stages of pyrolytic heating and the dehydration and decomposition processes begin during this transition. Hemicelluloses such as xylan are more labile and difficult to isolate, whereas both cellulose and lignin produce mostly bio-oils when demineralised and flash pyrolysed. The dominant primary products from 'pure' cellulose are anhydrosugars as well as smaller oxygenates. Lignin gives aromatics based on the syringol and guiacol molecules. The alkali and alkaline earth metals are found to curtail the yield of bio-oil and modify product distribution, even in the low concentrations naturally found in biomass. All other metals act to catalyse cross-linking reactions, with the nickel and zinc most studied. The electropositivity of the metal tends to correlate with the extent of catalytic activity. The presence of metals causes little change to the production of gases, but more char is formed at the expense of liquids. If the aim of pyrolysis is bio-oil for fuel, prewashing of biomass to remove metals is beneficial.

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Section: Introductionmentioning

confidence: 99%

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

Nzihou

Stanmore

Lyczko

et al. 2019

Energy

129

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“…Catalytic gasification is a valuable option to promote energy efficiency [45,59,60], but only in few cases it is applied to improve MSW gasification. Ni-based catalysts [61,62] could be used, but they cannot be utilized in a gasifier as that shown in Fig.…”

Section: Waste-to-chemicalsmentioning

confidence: 99%

Chemical engineering role in the use of renewable energy and alternative carbon sources in chemical production

2019

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There is a demand for new chemical reaction technologies and associated engineering aspects due to on-going transition in energy and chemistry associated to moving out progressively from the use of fossil fuels. Focus is given in this review on two main aspects: i) the development of alternative carbon sources and ii) the integration of renewable energy in the chemical production. It is shown how addressing properly these aspects requires to develop also a) new tools for chemical engineering assessment and b) innovative methodologies for the development of the materials, reactors and processes. This review evidences the need to accelerate studies on these directions, being a crucial element to catalyze the transition to a more sustainable use of energy and chemistry. It is remarked, however, the need to go beyond the traditional approaches, with some examples given. In fact, the presence of radical changes in the way of production is underlined, requiring thus novel fundamentals and applied engineering approaches.

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“…Pirolisis merupakan salah satu cara yang dapat digunakan untuk merubah biomassa menjadi produk yang bernilai ekonomis lebih tinggi [19]. Pirolisis adalah proses konversi termal dimana material diperlakukan dalam kondisi atmosfir inert tanpa adanya udara atau oksigen.…”

Section: Teoriunclassified

Pengaruh Suhu, Waktu, Dan Kadar Air Bahan Baku Terhadap Pirolisis Serbuk Pelepah Kelapa Sawit

Maulina

Putri

2017

J. Teknik Kimia

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Palm plantation produce waste in form of palm midribs in large number. One of the way to handle and increase the value of palm midrib waste is by pyrolysis. The particle size of raw material that used in this study was 23 – 50 mesh. The reduction of raw material size can increase the heating rate of pyrolysis. This study aimed to analyze the effect of temperature, time, and water content of raw material on the yield and pH of liquid smoke. Pyrolysis of palm midrib powder was processed at 150 oC, 200 oC, and 250 oC with various time was 30 minutes, 60 minutes, and 90 minutes. The study found that the yield of liquid smoke tend to increase with rising pyrolysis temperature and time until the condition when un-condensable gas was produced more so that the increase of pyrolysis temperature and time will further decrease the yield. The highest yield of liquid smoke obtained at 250 oC for 30 minutes, is 20,69%. The best pH of liquid smoke obtained at pyrolysis temperature 250 oC for 90 minutes, is 2,6.

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The Efficient and Sustainable Pyrolysis and Gasification of Biomass by Catalytic Processes

Cited by 22 publications

References 261 publications

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

Chemical engineering role in the use of renewable energy and alternative carbon sources in chemical production

Pengaruh Suhu, Waktu, Dan Kadar Air Bahan Baku Terhadap Pirolisis Serbuk Pelepah Kelapa Sawit

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