نتایج جستجو برای: slow pyrolysis

تعداد نتایج: 119429  

Journal: :Waste and Biomass Valorization 2022

Recently, Luffa cylindrica has been drawing lots of attention in adsorption applications. However, the contaminated biomass needs to be properly disposed. Pyrolysis is a process capable turning this type residue into valuable product. pyrolysis produces biochar which used as adsorbent for various cationic and organic species. Additionally, use solar power heat reactor reduces environmental impa...

2016
Boyan Li

This thesis consists of uncertainty and techno-economic studies of two different biofuels production pathways (catalytic pyrolysis and gasification). The objective of this paper is to obtain a side-by-side techno-economic comparison of in situ and ex situ catalytic pyrolysis, and gasification state-of-technology and target scenarios that addresses both sensitivity and uncertainty analysis in th...

2014
Sensho Honma Toshimitsu Hata Takashi Watanabe

The influence of catalysts on the compositions of char and pyrolysis oil obtained by pyrolysis of wood biomass with pulse current heating was studied. The effects of catalysts on product compositions were analyzed using GC-MS and TEM. The compositions of some aromatic compounds changed noticeably when using a metal oxide species as the catalyst. The coexistence or dissolution of amorphous carbo...

Journal: :Waste management 2008
Xinghua Zhang Tiejun Wang Longlong Ma Jie Chang

Granules of waste tires were pyrolyzed under vacuum (3.5-10 kPa) conditions, and the effects of temperature and basic additives (Na2CO3, NaOH) on the properties of pyrolysis were thoroughly investigated. It was obvious that with or without basic additives, pyrolysis oil yield increased gradually to a maximum and subsequently decreased with a temperature increase from 450 degrees C to 600 degree...

2016
Yoshiaki Kato Ryohei Enomoto Minami Akazawa Yasuo Kojima

A bench-scale auger reactor was designed for use as a laboratory-scale fast pyrolyzer for producing bio-oil from Japanese cedar. An analytical pyrolysis method was performed simultaneously to determine the distribution of pyrolysis products. The pyrolysis temperature was found to have the greatest influence on the bio-oil characteristics; bio-oil yields increased as the pyrolysis temperature in...

2009
Xian-Hua Wang Han-Ping Chen Xue-Jun Ding Hai-Ping Yang Shi-Hong Zhang Ying-Qiang Shen

Pine sawdust pyrolysis was carried out respectively using microwave and conventional electrical heating at different temperatures in order to understand the properties of pyrolytic products from microwave pyrolysis of biomass. Less char material was obtained by microwave pyrolysis compared to conventional heating at the same temperature. While comparing the components of the pyrolytic gases, it...

2010
Pragnesh N Dave Asim K Joshi

Plasma pyrolysis integrates thermo-chemical properties of plasma using pyrolysis process for safe disposal of solid wastes. It is an environment friendly technology to generate valuable byproducts by converting municipal solid waste, biomedical waste and hazardous wastes at 800-1000°C. Plasma Pyrolysis of plastic wastes generates pyrolysis gas, which can be utilized for energy recovery via diff...

Journal: :Forests 2022

The aim of this study was to evaluate the antimicrobial activity wood distillates obtained from Scots pine (Pinus sylvestris) sawdust in order explore new alternatives for utilization industry by-products. were produced by slow pyrolysis thermal conversion three process phases with increasing temperatures, namely drying, torrefaction and pyrolysis, cooling units different temperatures condensat...

2017
Xiaoyan Jiang Qiang Lu Bin Hu Ji Liu Changqing Dong Yongping Yang

In order to understand the pyrolysis mechanism of β-O-4 type lignin dimers, a pyrolysis model is proposed which considers the effects of functional groups (hydroxyl, hydroxymethyl and methoxyl) on the alkyl side chain and aromatic ring. Furthermore, five specific β-O-4 type lignin dimer model compounds are selected to investigate their integrated pyrolysis mechanism by density functional theory...

2015
Xiaona Lin Shujuan Sui Shun Tan Jianping Sun Zhijun Zhang Thomas E. Amidon

Pyrolysis is a promising approach that is being investigated to convert lignin into higher value products including biofuels and phenolic chemicals. In this study, fast pyrolysis of four types of lignin, including milled Amur linden wood lignin (MWL), enzymatic hydrolysis corn stover lignin (EHL), wheat straw alkali lignin (AL) and wheat straw sulfonate lignin (SL), were performed using pyrolys...

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