Method for predicting pyrolysis kinetic parameters of biomass

A technology of kinetic parameters and biomass pyrolysis, which is applied in the fields of high-efficiency utilization of biomass energy and biomass pyrolysis to oil production, can solve problems such as troublesome calculation of kinetic parameters, and achieve effective prediction results

Inactive Publication Date: 2016-11-09
SOUTHEAST UNIV
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Problems solved by technology

[0003] Purpose of the invention: In order to solve the troublesome problem of calculating kinetic parameters in the existing biomass oil production and biomass pyrolysis, the present invention provides a method for quickly, accurately and effectively predicting the kinetic parameters of biomass pyrolysis

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  • Method for predicting pyrolysis kinetic parameters of biomass
  • Method for predicting pyrolysis kinetic parameters of biomass
  • Method for predicting pyrolysis kinetic parameters of biomass

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[0031] Below in conjunction with specific implementation case, further illustrate the present invention, it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after reading the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0032] The present invention proposes the method for predicting biomass pyrolysis kinetic parameters (reaction order n, activation energy E, pre-exponential factor A), comprising the following steps:

[0033] 1) In order to study the effect of the ratio of the three components of cellulose, hemicellulose and lignin in the biomass on the kinetic parameters of biomass pyrolysis, the OMDM method in the Design-Expert mixing test method was used to analyze the three components. According to the...

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Abstract

The invention proposes a method for predicting pyrolysis kinetic parameters of biomass. The method comprises the following steps of 1) performing optimization design on a proportion of three main components of the biomass by adopting an optimal mixture design method in a Design-Expert mixture experiment method; 2) performing a thermogravimetric experiment on each mixing sample, performing reactive kinetic parameter calculation on thermogravimetric experiment data of the three components in combination with a Coats-Redfern integral method, and establishing a mathematic model used for calculating the pyrolysis kinetic parameters of the biomass by adopting a Special Cubic regression model; and 3) substituting the proportion of main components in a to-be-tested substance into the established mathematic model, and predicting the pyrolysis kinetic parameters of the biomass of the to-be-tested substance. According to the method, a large amount of thermogravimetric experiments and complicated calculation processes required to be performed for calculating the kinetic parameters in a biomass pyrolysis research process are effectively avoided and reliable experimental and theoretical bases are provided for energy utilization of the biomass, control of a biomass thermochemical conversion and utilization process and optimization of a technological process.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency utilization of biomass energy and biomass pyrolysis to oil production, and more specifically relates to a method for rapidly, accurately and effectively predicting kinetic parameters of biomass pyrolysis. Background technique [0002] The high-efficiency utilization of biomass energy helps to greatly reduce human consumption of fossil energy. Biomass is mainly a high polymer composed of three main components: cellulose, hemicellulose and lignin. The pyrolysis properties of the three components of biomass are quite different, mainly due to the differences in the structures and properties of the three components. lead to. The pyrolysis of biomass can be regarded as a synthesis of pyrolysis of cellulose, hemicellulose and lignin. This process is not a simple superposition of the pyrolysis of the three components, but there is a certain internal relationship. The research on the pyrolysis be...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 仲兆平张金薛则禹郭飞宏谢兴旺
Owner SOUTHEAST UNIV
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