The gaseous products characterization of the pyrolysis process of various agricultural residues using TGA–DSC–MS techniques

Pyrolysis and gasification have gradually become the main means to dispose of automobile shredder residue (ASR), since these methods can reduce the volume and quality of landfill with lower cost and energy recovery can be conducted simultaneously. As the ASR pyrolysis process is integrated, the results of pyrolysis reactions of organic components and the interaction among polymeric components can be clarified by co-pyrolysis thermogravimetric experiments. The results show that the decomposition mechanisms of textiles and foam are markedly changed by plastic in the co-pyrolysis process, but the effect is not large for rubber and leather. This effect is mainly reflected in the pyrolysis temperature and pyrolysis rate. The pyrolytic trend and conversion curve shape of the studied ASR can be predicted by the main polymeric components with a parallel superposition model. The pyrolytic product yields and characterizations of gaseous products were analyzed in laboratory-scale non-isothermal pyrolysis experiments at finished temperatures of 500 °C, 600 °C, and 700 °C. The results prove that the yields of pyrolytic gas products are determined by the thermal decomposition of organic substances in the ASR and final temperature.

Download Full-text

TGA-DSC-MS analysis of pyrolysis process of various agricultural residues

Thermal Science ◽

10.2298/tsci180118182m ◽

2019 ◽

Vol 23 (Suppl. 5) ◽

pp. 1457-1472 ◽

Cited By ~ 1

Author(s):

Nebojsa Manic ◽

Bojan Jankovic ◽

Dragoslava Stojiljkovic ◽

Vladimir Jovanovic ◽

Milos Radojevic

Keyword(s):

Mass Spectrometry ◽

Large Scale ◽

Simultaneous Thermal Analysis ◽

Agricultural Residues ◽

Pyrolysis Process ◽

Gaseous Products ◽

Wide Range ◽

Hazelnut Shell ◽

Three Stages ◽

Pyrolysis Processes

Slow pyrolysis (gradual heating over a wide range of temperatures) characteristics of various biomasses (corn brakes, wheat straw, and hazelnut shell) were investigated by simultaneous thermal analysis (STA-TGA-DTG-DSC), coupled with mass spectrometry. Thermal decomposition of these samples was divided into three stages corresponding to removal of water, devolatilization, and formation of bio-char. It was found that differences in thermal behavior of the samples are due to differences in their composition. The mass spectrometry results showed that H2, CH4 , H2O, CO2 (C3H8), CO, and C2H6were main gaseous products released during pyrolysis. Within the pyrolysis processes, it was found that CO can be used on the large scale for production of CO-rich syngas.

Download Full-text

Characterization of solid, liquid and gaseous products from waste printed circuit board pyrolysis

Journal of Cleaner Production ◽

10.1016/j.jclepro.2021.127881 ◽

2021 ◽

pp. 127881

Author(s):

Weifang Chen ◽

Yanjun Chen ◽

Yongkai Shu ◽

Yinan He ◽

Jinbo Wei

Keyword(s):

Printed Circuit Board ◽

Circuit Board ◽

Printed Circuit ◽

Gaseous Products ◽

Waste Printed Circuit Board ◽

Solid Liquid

Download Full-text

Preparation and characterization of ZrB 2 and TaC containing C f /SiC composites via Polymer-Infiltration-Pyrolysis process

Journal of the European Ceramic Society ◽

10.1016/j.jeurceramsoc.2016.12.048 ◽

2017 ◽

Vol 37 (5) ◽

pp. 1955-1960 ◽

Cited By ~ 20

Author(s):

Franziska Uhlmann ◽

Christian Wilhelmi ◽

Stephan Schmidt-Wimmer ◽

Steffen Beyer ◽

Claudio Badini ◽

...

Keyword(s):

Pyrolysis Process ◽

Sic Composites ◽

Polymer Infiltration

Download Full-text

Deposition and characterization of La2Ti2O7 thin films via spray pyrolysis process

Applied Surface Science ◽

10.1016/j.apsusc.2006.10.016 ◽

2007 ◽

Vol 253 (10) ◽

pp. 4560-4565 ◽

Cited By ~ 13

Author(s):

D.S. Todorovsky ◽

R.V. Todorovska ◽

M.M. Milanova ◽

D.G. Kovacheva

Keyword(s):

Thin Films ◽

Spray Pyrolysis ◽

Pyrolysis Process ◽

Spray Pyrolysis Process

Download Full-text

Characterization of epitaxial thin films of Bi2VO5.5 on La-doped SrTiO3 substrates prepared by coating-pyrolysis process

Thin Solid Films ◽

10.1016/s0040-6090(02)00984-7 ◽

2002 ◽

Vol 422 (1-2) ◽

pp. 73-79 ◽

Cited By ~ 4

Author(s):

Kenichi Tsukada ◽

Tsutomu Nagahama ◽

Mitsugu Sohma ◽

Iwao Yamaguchi ◽

Takaaki Manabe ◽

...

Keyword(s):

Thin Films ◽

Epitaxial Thin Films ◽

Pyrolysis Process ◽

La Doped

Download Full-text

Fractionation of Birch Wood by Integrating Alkaline-Acid Treatments and Hydrogenation in Ethanol over a Bifunctional Ruthenium Catalyst

Catalysts ◽

10.3390/catal11111362 ◽

2021 ◽

Vol 11 (11) ◽

pp. 1362

Author(s):

Boris N. Kuznetsov ◽

Sergey V. Baryshnikov ◽

Angelina V. Miroshnikova ◽

Aleksandr S. Kazachenko ◽

Yuriy N. Malyar ◽

...

Keyword(s):

Microcrystalline Cellulose ◽

Catalytic Hydrogenation ◽

Liquid Product ◽

Gel Permeation Chromatography ◽

Ruthenium Catalyst ◽

Birch Wood ◽

Gaseous Products ◽

Liquid Products ◽

First Time

For the first time, the fractionation of birch wood into microcrystalline cellulose, xylose and methoxyphenols is suggested based on the integration of alkali-acid pretreatments and hydrogenation in ethanol over a bifunctional Ru/C catalyst. It is established that removal of hemicelluloses during pretreatments of birch wood influences the yields of the liquid, gaseous and solid products of the non-catalytic and catalytic hydrogenation of pretreated samples in ethanol at 225 °C. The bifunctional Ru/carbon catalyst affects in different ways the conversion and yields of products of hydrogenation of the initial and acid- and alkali-pretreated birch wood. The most noticeable influence is characteristic of the hydrogenation of the acid-pretreated wood, where in contrast to the non-catalytic hydrogenation, the wood conversion and the yields of liquid products increase but the yields of the solid and gaseous products decrease. GC-MS, gel permeation chromatography and elemental analysis were used for characterization of the liquid product composition. The molecular mass distribution of the liquid products of hydrogenation of the initial and pretreated wood shifts towards the low-molecular range in the presence of the catalyst. From the GC-MS data, the contents of monomer compounds, predominantly 4-propylsyringol and 4-propanolsyringol, increase in the presence of the ruthenium catalyst. The solid products of catalytic hydrogenation of the pretreated wood contain up to 95 wt% of cellulose with the structure, similar to that of microcrystalline cellulose.

Download Full-text