℃. On the basis of experiment data,a pyrolysis kinetic model was proposed. The kinetic parameters of apparent activation energy(E) and frequency factor(A) were obtained by the direct Arrhenius plot method.

During the main pyrolysis temperature region,a two-step different reaction series pyrolysis kinetics model was developed which was fit for the intrinsic property of the blends and the related kinetics parameters were determined.

On the basis of experiment data, a pyrolysis kinetics model was proposed and the kinetics parameters of furfural residues pyrolysis were obtained by integral method and differential method.

During the main pyrolysis temperature region, a two-stage different reaction series pyrolysis kinetics model was developed which was fit for the intrinsic property of the blends and the kinetics parameters of activation energy and frequency factor were determined using Coats-Redfern analyses.

The research situation and characteristics of apparatuses for the study on fast pyrolysis kinetics model of biomass were mainly introduced and compared each other. The key points for optimization of development, design, and operation of reactors were described.

The characteristics of coal drying and pyrolysis were analysed. The coal desiccation model, pyrolysis dynamics model ,gas coal coke reaction dynamics, and the law of gas diffusion and flow in the porous coal chunk were studied.

Based on the test data, a model of pyrolysis dynamics model has been established, the integration and differentiation methods are respectively used to find the solutions of pyrolysis dynamics parameters. The stage number of coal pyrolysis reaction obtained to be 3, the calculated result of pyrolysis reaction dynamics parameters can really reflect the pyrolysis state of coal.

A pattern searching method, which is a direct global optimization technique, is here presented together with a practical example which shows the effectiveness of the method in finding parameters of models.

The pyrolysis kinetics were investigated with the endothermal peaks in the pressurized pyrolysis DTA curves of Colorado(USA), Fushun and Maoming oil shale using integral method and differential method of overall first order kinetic model. The kinetic parameters were calculated and the effects of pressure were discussed. The results shown that the pyrolysis reaction of oil shale is retarded by pressure. Furthermore, a pressure factor f is proposed and a new pressure kinetic model is established as follows dx/dT=A/φF(P)e~(-E/RT)(1-x)~a...

The pyrolysis kinetics were investigated with the endothermal peaks in the pressurized pyrolysis DTA curves of Colorado(USA), Fushun and Maoming oil shale using integral method and differential method of overall first order kinetic model. The kinetic parameters were calculated and the effects of pressure were discussed. The results shown that the pyrolysis reaction of oil shale is retarded by pressure. Furthermore, a pressure factor f is proposed and a new pressure kinetic model is established as follows dx/dT=A/φF(P)e~(-E/RT)(1-x)~a

For a better simulation of the natural degradation of source rock Kero- gen under experimental conditions, pyrolysis experiments on two kinds of source rock samples from Xinjiang and Jilin were carried out by means of high pressure differential thermal analyser(DTA). The pyrolysis DTA Curves were obtained under a linear rise of temperature of 10℃/min and a pressure of 1~60 atm respectively. The pyrolysis kinetics were investigated with the en- dothermal peaks in their DTA curves using integral method and differerntial...

For a better simulation of the natural degradation of source rock Kero- gen under experimental conditions, pyrolysis experiments on two kinds of source rock samples from Xinjiang and Jilin were carried out by means of high pressure differential thermal analyser(DTA). The pyrolysis DTA Curves were obtained under a linear rise of temperature of 10℃/min and a pressure of 1~60 atm respectively. The pyrolysis kinetics were investigated with the en- dothermal peaks in their DTA curves using integral method and differerntial method on an overall first order kinetic model. The kinetic parameters were calculated. It was shown that the pyrolysis of kerogen was retarded by pres- sure, and some effects of pressure on the pyrolysis kinetics were also inves- tigated. Furthermore, a pressure factor f was proposed, and a new pressure kinetic model was established. Results indicate a fair agreement between experimental and calculated data by using the suggested model.

Pyrolysis experiments on single Huangxian lignite lump(20-60mm in diameter) were carried out in a thermogravimetric analyzer for large samples at the constant heating rate of 2℃/min. The experimental data of weight loss and intralump temperature ditsribution were obtained. The effect of sample size on pyrolysis reactien has been investigated. A kinetic model which takes the pyrolysis reaction together with the internal temperature gradient into account was successfully developed. The results indicated that the...

Pyrolysis experiments on single Huangxian lignite lump(20-60mm in diameter) were carried out in a thermogravimetric analyzer for large samples at the constant heating rate of 2℃/min. The experimental data of weight loss and intralump temperature ditsribution were obtained. The effect of sample size on pyrolysis reactien has been investigated. A kinetic model which takes the pyrolysis reaction together with the internal temperature gradient into account was successfully developed. The results indicated that the apparent activation energy is about 110kJ/mol and that maximum temperature difference is about 100℃ for sample size of 60mm.