Journal ArticleDOI
Volatile production from pyrolysis of cellulose, hemicellulose and lignin
TLDR
In this paper, characteristics of volatile products in the pyrolysis of three main components (cellulose, hemicellulose and lignin) were investigated and compared by amplifying experiments in a tube furnace at 300-700°C.Abstract:
To better understand pyrolysis mechanism and further develop selective pyrolysis technology, characteristics of volatile products in the pyrolysis of three main components (cellulose, hemicellulose and lignin) were investigated and compared by amplifying experiments in a tube furnace at 300–700 °C. Distribution of volatile products (including bio-oil and bio-gas), the influence of temperature and contributions of each single component were discussed in depth. It was found that, for each sample pyrolysis, pyrolysis temperature and their own chemical structures played an important role in the yields, composition of bio-oil and bio-gas. The optimal temperatures for production of bio-oil from cellulose, hemicellulose and lignin focused at 500 °C, 450 °C and 600 °C, respectively, and cellulose made greater contribution to bio-oil formation, and hemiellulose was the major contributor for bio-gas. Moreover, the more bio-gases from the three components generated at the higher temperature, but compositions of volatile products were different depending on their unique chemical structures. In the three components, cellulose produced the highest CO, hemicellulose owned the highest CO2, and lignin generated the highest CH4 characterized by the largest HHV. As for bio-oil, cellulose bio-oil displayed unique saccharides and higher furans, hemicellulose bio-oil contained higher acids and ketones, while phenols were the dominant composition of lignin bio-oil.read more
Citations
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Journal ArticleDOI
From lignin to valuable products–strategies, challenges, and prospects
TL;DR: This review summarizes the latest cutting-edge innovations of lignin chemical valorization with the focus on the aforementioned three key aspects.
Journal ArticleDOI
Torrefaction, pyrolysis and two-stage thermodegradation of hemicellulose, cellulose and lignin
TL;DR: In this article, the thermal degradation mechanisms of hemicellulose, cellulose, and lignin were investigated using pyrolysis-gas chromatography/mass spectrometry.
Journal ArticleDOI
Effects of feedstock characteristics on microwave-assisted pyrolysis – A review
Yaning Zhang,Paul Chen,Shiyu Liu,Peng Peng,Min Min,Yanling Cheng,Erik Anderson,Nan Zhou,Liangliang Fan,Chenghui Liu,Guo Chen,Yuhuan Liu,Hanwu Lei,Bingxi Li,Roger Ruan +14 more
TL;DR: The quantitative analysis of data reported in the literature showed a strong contrast between the conventional processes and microwave based processes, and the lack of understanding of some observed results warrant more and in-depth fundamental research.
Journal ArticleDOI
Comparative studies on the pyrolysis of cellulose, hemicellulose, and lignin based on combined kinetics
TL;DR: In this article, the thermal degradation behavior and pyrolytic mechanism of cellulose, hemicellulose, and lignin were investigated at different heating rates from 10 Kmin−1 to 100 Kmin −1.
Journal ArticleDOI
Catalytic fast pyrolysis of biomass: Selective deoxygenation to balance the quality and yield of bio-oil.
TL;DR: More decarboxylation or less dehydration is better for the balance between yield and deoxygenation amount, and the preferred decar boxylation would lead to a higher pH and lower moisture content of bio-oil.
References
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Journal ArticleDOI
Characteristics of hemicellulose, cellulose and lignin pyrolysis
TL;DR: In this article, the pyrolysis characteristics of three main components (hemicellulose, cellulose and lignin) of biomass were investigated using, respectively, a thermogravimetric analyzer (TGA) with differential scanning calorimetry (DSC) detector and a pack bed.
Journal ArticleDOI
Energy production from biomass (Part 1): Overview of biomass.
TL;DR: The potential of a restored landfill site to act as a biomass source, providing fuel to supplement landfill gas-fuelled power stations, is examined, together with a comparison of the economics of power production from purpose-grown biomass versus waste-biomass.
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Review of biomass pyrolysis oil properties and upgrading research
TL;DR: In this paper, the physicochemical properties and characteristics of the components and compositions of biomass pyrolysis oil have been discussed with some suggestions on upgrading and applications of bio-oil in the decades.
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Historical Developments in Hydroprocessing Bio-oils
TL;DR: A review of the developments in the field of catalytic hydroprocessing of biomass-derived liquefaction conversion products (bio-oil) over the past 25 years is presented in this paper.
Journal ArticleDOI
Renewable Chemical Commodity Feedstocks from Integrated Catalytic Processing of Pyrolysis Oils
Tushar P. Vispute,Huiyan Zhang,Huiyan Zhang,Aimaro Sanna,Aimaro Sanna,Rui Xiao,George W. Huber +6 more
TL;DR: It is shown that pyrolysis oils can be converted into industrial commodity chemical feedstocks using an integrated catalytic approach that combines hydroprocessing with zeolite catalysis, and the total product yield can be adjusted depending on market values of the chemical feedstock and the relative prices of the hydrogen and biomass.