نتایج جستجو برای: آنالیز pyrolysis ftir

تعداد نتایج: 70359  

Journal: :Environmental Science & Technology 2021

Reliable chemical identification of specific polymers in environmental samples represents a major challenge plastic research, especially with the wide range commercial available, along variable additive mixtures. Thermogravimetric analysis-Fourier transform infrared-gas chromatography-mass spectrometry (TGA-FTIR-GC-MS) offers unique characterization platform that provides both physical and prop...

ژورنال: :پژوهش های کاربردی در شیمی 0
سعید تقوایی دانشکده شیمی، دانشگاه آزاد واحد تهران شمال حامد اقبال زاده فر دانشکده شیمی، دانشگاه آزاد واحد تهران شمال احمدرضا زمانی فریزهندی دانشکده شیمی، دانشگاه آزاد واحد تهران شمال

در این پژوهش، آنالیز آمیزه های لاستیکی بر پایه nr/sbr با استفاده از تکنیک طیف سنجی  (atr–ftir (attenuated total internal reflection fourier transform infraredانجام گرفته است. با استفاده از شدت پیک های شاخص برگرفته از نمونه های لاستیکی پیرولیز شده در طیف atr–ftir مدلی بر اساس تغییر در شدت پیک های مذکور با تغییر در نسبت nr/sbr در آمیزه استخراج شد. صحت و دقت مدل ارایه شده بر اساس آمیزه های مرجع مو...

2007
C. Y. Cha

Western Research Institute is developing a new pyrolysis process called ROPE© (Recycle Oil Pyrolysis and Extraction) for recovering products from tar sands that require a minimum of upgrading to produce finished, marketable fuels or that can be used as a diluent to decrease the pour point of bitumen for transportation. The concept consists of two pyrolysis steps: (1) retorting tar sand at a low...

Journal: :Environmental technology 2012
Zhonghui Wang Dezhen Chen Xueding Song Lei Zhao

A combined pyrolysis and gasification process for sewage sludge was studied in this paper for the purpose of its safe disposal with energy self-balance. Three sewage sludge samples with different dry basis lower heat values (LHV(db)) were used to evaluate the constraints on this combined process. Those samples were pre-dried and then pyrolysed within the temperature range of 400-550 degrees C. ...

Journal: :The Indonesian Green Technology Journal 2022

Wood processing in Indonesia produces a lot of sawdust waste that has not been fully utilized. One way to overcome this is process it into liquid smoke which can be used as raw material for fish preservatives. The began with pyrolising the smoke, was then purified by distillation, and results were characterized GCMS FTIR. Liquid quality testing also carried out, namely measuring pH, determining...

2017
Tianjiao Hu Xiaodong Li Wenjing Pu Zhenyu Xia

Two types of silicon carbide fibers with sinusoidal electrical resistivity were prepared by using different pyrolysis technology. The relationship between the microstructure and the electrical resistivity of these fibers was investigated and compared. The results indicated that carbon layer was the main conductive phase in the SiC fibers obtained by means of one step pyrolysis, whereas a free c...

2018
Qiang Lu Zhen-xi Zhang Xin Wang Hao-qiang Guo Min-shu Cui Yong-ping Yang

A new technique was proposed to co-produce phenol and activated carbon (AC) from catalytic fast pyrolysis of biomass impregnated with K3PO4 in a hydrogen atmosphere, followed by activation of the pyrolytic solid residues. Lab-scale catalytic fast pyrolysis experiments were performed to quantitatively determine the pyrolytic product distribution, as well as to investigate the effects of several ...

2010
QING YANG SHUBIN WU

The thermogravimetric characteristics of wheat straw EMAL (Enzymatic Acidolysis Lignin) were analyzed. The effect of the heating rates on the thermogravimetric characteristics of wheat straw and the wheat straw influence on pyrolysis were investigated. The influence of various heating rates on wheat straw was significant, the pyrolysis rate of wheat straw EMAL increased at temperatures between ...

Journal: :Interface focus 2013
J S Rowbotham P W Dyer H C Greenwell D Selby M K Theodorou

Thermochemical processing methods such as pyrolysis are of growing interest as a means of converting biomass into fuels and commodity chemicals in a sustainable manner. Macroalgae, or seaweed, represent a novel class of feedstock for pyrolysis that, owing to the nature of the environments in which they grow coupled with their biochemistry, naturally possess high metal contents. Although the imp...

2017
Petar S Varbanov Rongxin Su Hon Loong Lam Xia Liu Jiří J Klemeš Attila Egedy Jun Zou Norbert Miskolczi Haiping Yang Paul T. Williams

Biomass is of growing interest as a secondary energy source. Biomass could be converted to energy especially by pyrolysis or gasification. Understanding the mechanism and the kinetics of biomass pyrolysis and gasification could be the key to the design of industrial devices capable of processing vast amounts of biomass feedstock. There are multiple reactions describing the decomposition of biom...

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