Topic
Pyrolysis
About: Pyrolysis is a research topic. Over the lifetime, 34918 publications have been published within this topic receiving 833524 citations.
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TL;DR: Electrolysis and elemental analysis revealed that there was no general augmentation of the elemental composition of the biochar samples through the treatment with H2O2, which suggests that the bulk property of biochar remains unchanged through thetreatment.
173 citations
TL;DR: In this paper, the effect of zinc oxide on pyrolysis vapours of pine sawdust was studied in micro and bench scales with zinc oxide catalyst and the results indicated an improvement in the stability of the ZnO-treated oil.
173 citations
01 Jan 1992
TL;DR: In contrast to the slow heating rates employed for other thermal characterization techniques, such as differential scanning calorimetry (DSC), analytical pyrolysis has a high rate of heating to the final temperature in the millisecond range as discussed by the authors.
Abstract: Pyrolysis is the transformation of a nonvolatile compound into a volatile degradation mixture by heat in the absence of oxygen. A rate of heating to the final temperature in the millisecond range is typical for analytical pyrolysis, in contrast to the slow heating rates employed for other thermal characterization techniques, e.g., thermogravimetry (TG) and differential scanning calorimetry (DSC), that are in the range of minutes or hours. Simple sample preparation (drying and milling), rapid analysis times (from minutes up to 1.5 h) and small sample size (1 to 100µg) are the key features of analytical pyrolysis. Comprehensive books on special applications of pyrolysis are available (Irwin 1982, Meuzelaar et al. 1982, Voorhees 1984, Liebman and Levy 1985, Linskens and Jackson 1986).
173 citations
TL;DR: In this paper, the combustion and reoxidation properties of direct coal chemical-looping combustion (CLC) over CuO, Fe2O3, Co3O4, NiO, and Mn 2O3 were investigated using thermogravimetric analysis (TGA) and bench-scale fixed-bed flow reactor studies.
Abstract: The combustion and reoxidation properties of direct coal chemical-looping combustion (CLC) over CuO, Fe2O3, Co3O4, NiO, and Mn2O3 were investigated using thermogravimetric analysis (TGA) and bench-scale fixed-bed flow reactor studies. When coal is heated in either nitrogen or carbon dioxide (CO2), 50% of weight loss was observed because of partial pyrolysis, consistent with the proximate analysis. Among various metal oxides evaluated, CuO showed the best reaction properties: CuO can initiate the reduction reaction as low as 500 °C and complete the full combustion at 700 °C. In addition, the reduced copper can be fully reoxidized by air at 700 °C. The combustion products formed during the CLC reaction of the coal/metal oxide mixture are CO2 and water, while no carbon monoxide was observed. Multicycle TGA tests and bench-scale fixed-bed flow reactor tests strongly supported the feasibility of CLC of coal by using CuO as an oxygen carrier. Scanning electron microscopy (SEM) images of solid reaction products ...
173 citations
TL;DR: In this paper, the role of CO2 in pyrolysis of red pepper stalks was examined and the physicico-chemical properties of biochar generated in CO2 were varied compared to biochar produced in N2.
173 citations