Catalytic Upgrading of Fast Pyrolysis Products with Fe-, Zr-, and Co-Modified Zeolites Based on Pyrolyzer–GC/MS Analysis

The aim of this study was to assess the possibility of using furniture waste for smokeless fuel production using the pyrolysis process. Four types of wood-based wastes were used in the pyrolysis process: pine sawdust (PS), chipboard (CB), medium-density fiberboard (MDF), and oriented strand board (OSB). Additionally, the slow and fast types of pyrolysis were compared, where the heating rates were 15 °C/min and 100 °C/min, respectively. Chemical analyses of the raw materials and the pyrolysis product yields are presented. A significant calorific value rise was observed for the solid pyrolysis products (from approximately 17.5 MJ/kg for raw materials up to approximately 29 MJ/kg for slow pyrolysis products and 31 MJ/kg for fast pyrolysis products). A higher carbon content of char was observed in raw materials (from approximately 48% for raw materials up to approximately 75% for slow pyrolysis products and approximately 82% for fast pyrolysis products) than after the pyrolysis process. This work presents the possibility of utilizing waste furniture material that is mostly composed of wood, but is not commonly used as a substrate for conversion into low-emission fuel. The results prove that the proposed solution produced char characterized by the appropriate properties to be classified as smokeless coal.

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Hydro-Pyrolysis and Catalytic Upgrading of Biomass and Its Hydroxy Residue Fast Pyrolysis Vapors

Energies ◽

10.3390/en12183474 ◽

2019 ◽

Vol 12 (18) ◽

pp. 3474 ◽

Cited By ~ 2

Author(s):

Yichen Liu ◽

James J. Leahy ◽

Jacek Grams ◽

Witold Kwapinski

Keyword(s):

Aromatic Hydrocarbons ◽

Average Molecular Weight ◽

Fast Pyrolysis ◽

Gas Chromatography Mass Spectrometry ◽

Pyrolysis Gas ◽

Catalytic Upgrading ◽

Lower Viscosity ◽

Bio Oil ◽

Sulfated Tio2 ◽

Hydrolysis Residue

Fast pyrolysis of Miscanthus, its hydrolysis residue and lignin were carried with a pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) followed by online vapor catalytic upgrading with sulfated ZrO2, sulfated TiO2 and sulfated 60 wt.% ZrO2-TiO2. The most evident influence of the catalyst on the vapor phase composition was observed for aromatic hydrocarbons, light phenols and heavy phenols. A larger amount of light phenols was detected, especially when 60 wt.% ZrO2-TiO2 was present. Thus, a lower average molecular weight and lower viscosity of bio-oil could be obtained with this catalyst. Pyrolysis was also performed at different pressures of hydrogen. The pressure of H2 has a great effect on the overall yield and the composition of biomass vapors. The peak area percentages of both aromatic hydrocarbons and cyclo-alkanes are enhanced with the increasing of H2 pressure. The overall yields are higher with the addition of either H2 or sulfated catalysts. This is beneficial as phenols are valuable chemicals, thus, increasing the value of bio-oil. The results show that the hydrolysis residue has the potential to become a resource for phenol production.

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Py-GC-MS Analysis on Benzene-Alcohol Extractives of Eucalyptus urophydis Wood for Fine Indoor Environment

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.178-181.288 ◽

2012 ◽

Vol 178-181 ◽

pp. 288-291

Author(s):

Wan Xi Peng ◽

Lan Sheng Wang ◽

Zhi Lin ◽

Zhen Zhen Zheng

Keyword(s):

Health Care ◽

Indoor Environment ◽

Decanoic Acid ◽

Alcohol Solution ◽

Dodecanoic Acid ◽

Pyrolysis Products ◽

Ms Analysis ◽

Eucalyptus Wood ◽

Biological Medicine

In order to evaluate the safety of Eucalyptus wood interior, Eucalyptus urophydis wood was used and extracted in benzene-alcohol solution, and its extractives were identified by Py-GC/MS. The main and abundant constituents of 350°С pyrolysis products were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-(5.38%), stigmasterol,22,23- dihydro- (4.67%), 3'-chlorooxanilic acid n'-(3-ethox y-4-hydroxybenzylidene)hydrazide (4.13%), stigmast-5-en-3-ol, oleate(3.83%), 2-ethylacridine(3.32%), etc. The main and abundant constituents of 600°Сpyrolysis products were decanoic acid, 1,2,3-propanetriyl ester(33.8%), dodecanoic acid, 1,2,3-propanetriyl ester(8.03%), decanoic acid, 1,2,3-propanetriyl ester(3.99%), 1-chloromethyl-1-(2-propenyloxy)-1-silacyclohexane(3.98%), etc. So there was much biological medicine and health care composition in Eucalyptus urophydis wood. And the wood was safety.

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