In this study, three torrefaction atmosphere (N, CO and 2 vol% O with N balance) were used to study effects of representative main components of flue gas during torrefaction and subsequent pyrolysis. Torrefaction pretreatment was carried out in a fixed-bed reactor at 230 °C and 250 °C, respectively. Results showed after torrefaction, torrefied samples from oxygenated atmosphere presented severer hemicellulose decomposition. And its effects on fast pyrolysis were investigated in thermogravimetry analysis and bench-scale fixed-bed reactor. It was found that oxygenated atmosphere preferred to give higher relative content of phenols at 230 °C and furans at 250 °C. For CO, higher relative content of ketones and lowest phenols were got. The result also indicated that it's the O in flue gas which significantly improved the char yield. These results will be beneficial reference to predict and interpret alterations of pyrolysis behaviors when flue gas constitution changes in industrial application.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2018.07.078 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Photocatalytic degradation of NO by MnO catalyst: The decisive relationship between crystal phase, morphology and activity.
J Hazard Mater
January 2025
College of Carbon Neutrality Future Technology, Sichuan University, Chengdu, Sichuan 610065, China; National Engineering Research Center for Flue Gas Desulfurization, Chengdu, Sichuan 610065, China; Industrial Technology Research Institute, Sichuan University, Yibin 644004, China. Electronic address:
This study investigates the critical relationship between the crystal phase, morphology, and photocatalytic activity of MnO. The δ-MnO nanosheets, characterized by multiple exposed crystal planes forming junctions, exhibit optimized optical and electrical properties. Oxygen vacancy concentrations were observed in the order δ-MnO > γ-MnO > α-MnO, with corresponding increases in band gap width from 1.
View Article and Find Full Text PDFThe speciation and thermal transformation characteristics of fluorine and chlorine in industrial wastes.
Environ Technol
January 2025
China State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, Zhejiang Province, People's Republic of China.
The study investigated the chlorine and fluorine contents in three types of industrial solid waste: textile, plastic, and paper waste, utilizing various analytical methods. Significant variations in the proportions of organic and inorganic chlorine were observed among the waste types. During heat treatment, the majority of chlorine converts to a volatile state, with fixed chlorine content showing a correlation with organic chlorine.
View Article and Find Full Text PDFUnveiling the effect of W and Co on PbO resistance over FeCe catalyst for low-temperature NH-SCR of NO.
J Hazard Mater
January 2025
School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, PR China.
The presence of PbO in the flue gas can poison FeCe catalyst, reducing its denitrification efficiency. In this work, the mechanism of PbO poisoning of FeCe catalyst, along with the effects of W and Co co-doping on the NO oxidation performance and PbO resistance of FeCe catalyst were investigated. The S of FeCe catalyst decreased and the crystallinity increased obviously after PbO poisoning.
View Article and Find Full Text PDFElectrochemical approaches for CO point source, direct air, and seawater capture: identifying opportunities and synergies.
Environ Sci Pollut Res Int
January 2025
Institute for Integrated Energy Systems at University of Victoria (IESVic), Department of Mechanical Engineering, University of Victoria, Victoria, BC, V8P 5C2, Canada.
The world is increasingly facing the direct effects of climate change triggering warnings of a crisis for the healthy existence of humankind. The dominant driver of the climate emergency is the historical and continued accumulation of atmospheric CO altering net radiative forcing on the planet. To address this global issue, understanding the core chemistry of CO manipulation in the atmosphere and proximally in the oceans is crucial, to offer a direct partial solution for emissions handling through negative emissions technologies.
View Article and Find Full Text PDFGasification-MILD combustion technology with ash-sludge recirculation for reducing multi-phase net dioxin discharges from a waste incineration.
Waste Manag
January 2025
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081 China.
This study addresses the challenge of reducing "net" toxic pollutant discharge, specifically dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), while minimizing the energy consumption and costs associated with detoxification. Our research focuses on reintroducing fly ash and scrubber sludge (ASR) into a hazardous waste thermal treatment system equipped with gasification-intense low oxygen dilution (GASMILD) and an advanced air pollution control system (APCS). This approach yielded a remarkable PCDD/F removal efficiency exceeding 99.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!