The Characteristics of Calcium-Based Sorbent Burning Pore Structure and Simulation of Gas-Solid Mass Transfer in Vulcanization

Author:

Xiao Bao Qing1

Affiliation:

1. University of Science and Technology

Abstract

The experimental is carried out in the normal air atmosphere by calcining CaCO3 and using the scan electricity speculum and N2 adsorption apparatus to research the ventage structure of the calcinate CaO at 860°C.Analyzing on fractal dimension of different calcination temperature, heating rate and residence time. Thorough the pore structure of CaO which is a porous substance, using “dynamic pervasion modulus” to analyse the Calcium-based sorbent’s gas-solid pervasion transferring quality reaction when it is calcined in the furnace. Using the “dynamic pervasion modulus” and revising the expression of the SO2 adsorption quality in vulcanizing reaction.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference10 articles.

1. Pascal I P. Nonlinear diffusion in fractal structures. Phys A, 1994, 208: 351~358.

2. Miao Mingfeng, Chen Xianglin. Non-linear Change Characteristics of Pore Structure of Calcium-based Sulfur-fixing sorbent in Valcination Process. Energy Research and Application, 2001 (1).

3. Wang Hong, Dong Xuewen. Mechanism of SO2 Removal in O2/CO2 Combustion. Journal of Chemical Industry and Engineering(China) 2005 (10).

4. Borgwardt R H. Calcium oxide sintering in atmospheres containing water and carbon dioxidelnd. Eng Chem Res, 1989, 28: 493~500.

5. Borgwardt R H. Calcination kinetics and surface area of dispersed limestone particles. AlChEJ, 1985, 31: 103~111.

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