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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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Journal ArticleDOI
TL;DR: In this article, 17 biochars from the fast pyrolysis, slow pyrotelysis and gasification of corn stover, switchgrass, and wood were thoroughly characterized and subjected to an 8-week soil incubation as a way to select the most promising biochar for a field trial.
Abstract: One factor limiting the understanding and evaluation of biochar for soil amendment and carbon sequestration applications is the scarcity of long-term, large-scale field studies. Limited land, time, and material resources require that biochars for field trials be carefully selected. In this study, 17 biochars from the fast pyrolysis, slow pyrolysis, and gasification of corn stover, switchgrass, and wood were thoroughly characterized and subjected to an 8-week soil incubation as a way to select the most promising biochars for a field trial. The methods used to characterize the biochars included proximate analysis, CHNS elemental analysis, Brunauer–Emmett–Teller surface (BET) area, photo-acoustic Fourier transform infrared spectroscopy, and quantitative 13 C solid-state nuclear magnetic resonance (NMR) spectroscopy. The soil incubation study was used to relate biochar properties to three soil responses: pH, cation exchange capacity (CEC), and water leachate electrical conductivity (EC). Characterization results suggest that biochars made in a kiln process where some oxygen was present in the reaction atmosphere have properties intermediate between slow pyrolysis and gasification and therefore, should be grouped separately. A close correlation was observed between aromaticity determined by NMR and fixed carbon fraction determined by proximate analysis, suggesting that the simpler, less expensive proximate analysis method can be used to gain aromaticity information. Of the 17 biochars originally assessed, four biochars were ultimately selected for their potential to improve soil properties and to provide soil data to refine the selection scheme: corn stover low-temperature fast pyrolysis (highest amended soil CEC, information on high volatile matter/O–C ratio biochar), switchgrass O2/steam gasification (relatively high BET surface area, and amended soil pH, EC, and CEC), switchgrass slow pyrolysis (higher-amended soil pH and EC), and hardwood kiln carbonization (information on slow pyrolysis, gasification and kiln-produced differences).

259 citations

Book
15 Aug 2001
TL;DR: In this article, a parametric study of small-scale domestic biomass combustion is presented, where a fixed-bed CFB boiler is used for co-combustion of coal and biomass wastes in fluidized bed.
Abstract: Combustion: Co-combustion of coal and biomass wastes in fluidised bed Development of catalytic wood fired boiler The mathematical modelling of biomass pyrolysis in a fixed bed and experimental verification Operating parameters for the circulating fluidised bed (CFB) processing of biomass Combustion properties of a fuel bed - Experimental and modelling study Summary of recent parametric studies of small-scale domestic biomass combustion Combustion processes in a biomass fuel bed - Experimental results of the influence of airflow and of particle size and density Influence of the ash composition in slagging and defluidisation in a biomass fired commercial CFB boiler A new type of a boiler plant for dry and wet biofuel Gasification: Modern technologies of biomass conversion Redox process for the production of clean hydrogen from biomass Dynamic Modelling of Char Gasification in a Fixed-Bed A two stage pyrolysis/gasification process for herbaceous waste biomass from agriculture Fundamental fluid-dynamic investigations in a scaled cold model for biomass-steam gasification Biomass Power Generation: Sugar Cane Bagasse and Trash Biomass and waste to energy conversion in the Netherlands by means of (in) direct co-combustion: Status, projects and future applications in the Dutch utility sector Gasification study of biomass mixed with plastic wastes The development of methanol synthesis with biomass gasification Final report: Varnamo demonstration programme Design of a moving bed granular filter for biomass gasification Pyrolysis: Bagasse pyrolysis in a wire mesh reactor BCO/Diesel oil emulsification: Main achievements of the emulsification process and preliminary results of tests on diesel engine Overview of fast pyrolysis Production of hydrogen from biomass-derived liquids Levoglucosenone - A product of catalytic fast pyrolysis of cellulose Pyrolysis and gasification of black liquors from alkaline pulping of straw in a fixed bed reactor Thermal efficiency of the HTU process for biomass liquefaction Low-temperature pyrolysis as a possible technique for the disposal of CCA treated wood waste Mathematical modelling of the flash-pyrolysis process for wood particles Flash pyrolysis of biomass in a conical spouted bed. Kinetic study in the 400-500C range Scale up effect on plastics waste pyrolysis Research on the rotating cone reactor for sawdust flash pyrolysis Thermal desorption technology: Low temperature carbonisation of the biomass for manufacturing of activated carbon Scaling-up and operation of a flash-pyrolysis system for bio-oil production and applications on basis of the rotating cone technology Systems: Utilisation of bagasse residues in power production Barriers for the introduction of biomass in the Netherlands Assessment of the techno-economic viability of a bioelectricity demonstration plant in Spain Innovative components for decentralised combined heat and power generation from biomass gasification A role of bioenergy utilization technologies considering bioenergy supply potential and energy systems using a global energy and land use model

258 citations

Journal ArticleDOI
TL;DR: In this article, preliminary results using an atmospheric pressure fluidized-bed fast pyrolysis process have been obtained for the commercial grades of polystyrene, polyvinyl chloride, and polyethylene.
Abstract: Preliminary results using an atmospheric-pressure fluidized-bed fast pyrolysis process have been obtained for the fast pyrolysis of commercial grades of polystyrene, poly(vinyl chloride), and polyethylene. On the basis of these tests, polyethylene was selected for detailed study because of the difficulty in regenerating the monomer in good yields and because of its abundance as a waste material ― about 70 % of all plastic waste

258 citations

Journal ArticleDOI
TL;DR: A generalized pyrolysis model that can be used to simulate the gasification of a variety of combustible solids encountered in fires is presented in this paper. But the model is not suitable for the simulation of large-scale fires.

257 citations

Journal ArticleDOI
TL;DR: It was found that the pore properties, ash contents and pH values of all swine-manure-derived biochars basically increased as temperature increased, while the yield and nitrogen/oxygen contents decreased with increasing temperature as a result of pyrolytic volatilization during pyrolynsis.

257 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
20233,262
20226,570
20212,345
20202,434
20192,411