نتایج جستجو برای: slow pyrolysis

تعداد نتایج: 119429  

Journal: :Environmental and Climate Technologies 2022

Abstract Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It particularly attractive due to its cost-effectiveness low environmental impact. Therefore, this study utilizes coffee waste produce activated carbon in slow pyrolysis reactor at different reaction temperatures residence times. The results obtained show that bio-oil yields tend increase ...

Journal: :IOP conference series 2023

Abstract Ulva Lactuca and Sargassum sp. are rapidly expanding algae that can be used as a source of bioenergy. Due to its high moisture inorganic content, the direct use for energy purposes is deep. Therefore, thermochemical processing, such pyrolysis, required produce useful products, bio-oil. This study seeks undertake detailed investigation bio-oil production from provide information continu...

2001
Yu Wang Jorge J. Santiago-Aviles Rogerio Furlan Idalia Ramos

Carbon nanofibers were produced from polyacrylonitrile/N, N-Dimethyl Formamide (PAN/DMF) precursor solution using electrospinning and vacuum pyrolysis at temperatures from 773-1273 K for 0.5, 2, and 5 h, respectively. Their conductance was determined from I – V curves. The length and cross-section area of the nanofibers were evaluated using optical microscope and scanning probe microscopes, res...

Journal: :Dicle üniversitesi mühendislik fakültesi mühendislik dergisi 2021

Waste vehicle tires (WT) and high density polyetylene (HDPE) were pyrolyzed at 300, 500 700°C by slow pyrolysis. Solid product (pyrolysis char) collected pyrolysis char was used as adsorbent for COD Cr(VI) removal. The samples characterized BET, EDS, SEM XRD analysis. Based on the results of samples, WT 700 can be adsorbents Cr (VI) organic material adsorptions. removal efficiency investigated....

2008
William J. Hall Paul T. Williams

Two flame retarded plastics have been pyrolysed in the presence of two Zeolite catalysts to remove the organobromine compounds from the derived pyrolysis oil. The flame retarded plastics were, acrylonitrile – butadiene – styrene (ABS) that was flame retarded with tetrabromobisphenol A and high-impact-polystyrene (HIPS) that was flame retarded with decabromodiphenyl ether. The two catalysts inve...

2011
Yrjö Majanne Jani Laine Jyri Kaivosoja

The fast pyrolysis process is developed to produce liquid bio oil from biomass. In the discussed process the required thermal energy is extracted from a circulating fluidized bed boiler (CFB) as hot sand fed into the pyrolysis reactor. Residual char and uncondensed gases from the pyrolysis process are fed back and combusted in the boiler. Thus, the pyrolysis and the boiler processes are interco...

Pyrolysis is an applicable method that has been widely used to recover hydrocarbons from Used Lubricating Oil (ULO). However, large-scale application of this approach has been limited by its noticeably energy and time consuming nature. In the present research, it has been attempted to modify the energy and time requirements of ULO pyrolysis using the catalytic effects of metal oxide nanoparticl...

2010
Z. W. Zhong B. Song

This work analyzes a process known as flash pyrolysis, which produces bio fuels using biomass for power generation. A life-cycle assessment of flash pyrolysis of wood waste was conducted to study whether a flash pyrolysis plant set up locally would be environmentally friendly. The results obtained show that the process of flash pyrolysis of wood waste is in fact environmentally friendly, and th...

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