Experimental researches on the pyrolysis property of Huadian oil shale have been done by the FTIR with particle diameters of 75.66μm,110.05μm,200.21μm and 290.40μm when the heating rate is 20℃/min,which obtains its pyrolysis property curves under different particle diameter,and analyses pyrolysis property of oil shale under certain particle diameter.
The coal deposits in Henan Province is introduced Many tests for the coal pyrolysis property are made by using the thermogravimetric analysis The factors effecting on the coal pyrolysis property, such as the effect of the coal dust granularity on the pyrolytic results and the effect of the temperature change rate on the coal pyrolysis are studied The compound coal pyrolysis property is analysed The release property index of coal-dust pyrolytic results, r ,which represents the coal pyrolysis property is given
Using white birch as the biomass raw material, which is divided into three grades: 0.2～0.5 mm, 0.5～0.8 mm, 0.8～1.2 mm, and adopting the method of TG and DTG, the authors proceed the pyrolysis experiment and the pyrolysis characteristic research under four conditions of the ascend temperature velocity, namely 10, 20, 40 and 60℃/min.
For the effective application of thermogravimetric analysis in the area of coal research this paper introduces TG—DTG、TG—DTA、TG—DSC of thermogravimetric analysis and describes the application of techniques in the study on proximate analysis of coal,pyrolysis characteristic,combustion characteristic, spontaneous combustion.
With a thermogravimetric analysis apparatus, pyrolysis characteristic experiments of King grass were done at different heating rates, which were 10, 20 and 30℃/min , and the combustion characteristic experiment was done at 20℃/min heating rate. Then the characteristic parameters were obtained by above experiments.
On calculating pyrolysis characteristic values of coal , apparent activation energy(Ea) of various stages, reaction kinetics constant (K), pre-exponent (A) , maximum weightlessness rate(Rm), weight loss percent (F), reaction active index(Ra). they can be regarded at the index of coal pyrolysis reactive activity . The bigger Ra or the Rm, the better reactive activity of coal .
The pyrolytic characteristics of rice stalk at four heating rates(10, 15,20 and 30 K/min) have been investigated,in a nitrogenous atmosphere within a temperature range of 303 K～973 K,with a NETSCH STA 449 C simultaneous thermal analyzer of German manufacture.
With the use of a thermogravimetric differential analyzer the pyrolytic characteristics are studied of PVC (polyvinyl chloride) and HDPE (high density polyethylene) both with a chlorine content of 53.8%, and CPE (chlorinated polyethylene) with a chlorine content varying from 10% to 46%.
Under the condition of MATLAB5.3, a RBF neural network in the neural Networks Toolbox and essential analytic data: C ad , H ad , O ad , N ad , A ad , M ad are used to predict coal′s pyrolytic characteristics such as T i, T 1max , G 1 and t .
Pyrolytic characteristics of burning residue of fire-retardant wood
In order to investigate the pyrolytic characteristics of the burning residue of fire-retardant wood, a multifunctional fire-resistance test oven aimed at simulating the course of a fire was used to burn fire-retardant wood and untreated wood.
Pyrolytic characteristics of heterotrophic Chlorella protothecoides for renewable bio-fuel production
Heterotrophic Chlorella protothecoides cells were pyrolyzed in athermogravimetric analyzer to investigate the pyrolytic characteristics anddetermine the kinetic parameters.