NUMERICAL-SIMULATION OF CELLULOSE PYROLYSIS

被引：88

作者：

DIBLASI, C

机构：

[1] Dipartimento di Ingegneria Chimica, Universitá degli Studi di Napoli Federico II, 80125 Napoli, Piazzale V. Tecchio

来源：

BIOMASS & BIOENERGY | 1994年 / 7卷 / 1-6期

关键词：

MODELING; CELLULOSE; PYROLYSIS; HEAT TRANSFER;

D O I：

10.1016/0961-9534(94)00040-Z

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A mathematical moder of transport phenomena and chemical processes of the thermal degradation of cellulose is presented. The kinetic model developed by Bradbury et al. (J. Appl. Polym. Sci. 23, 3271, 1979) for primary pyrolysis is extended to include secondary reactions of volatiles: [GRAPHICS] From the physical point of view, the model describes convective, conductive and radiative heat transfer, mass convection and diffusion and velocity and pressure variations interior to the porous solid (Darcy law). Furthermore, porosity, mass diffusivity, permeability and thermal conductivity vary with the composition of the reacting medium. Time and space evolution of the main variables, and reaction product distribution, are simulated by varying the reactor temperature and the reactor healing rate.

引用

页码：87 / 98

页数：12

共 29 条

[21]

Antal, Effects of reactor severity on the gas-phase pyrolysis of cellulose- and kraft lignin-derived volatile matter, Ind. Engng Prod. Res. Dev., 22, pp. 366-375, (1983)

[22]

Boroson, Howard, Longwell, Peters, Products yields and kinetics from the vapor phase cracking of wood pyrolysis tars, AIChE J., 35, pp. 120-128, (1989)

[23]

Lee, Chaiken, Singer, Charring pyrolysis of wood in fires by laser simulation, Sixteenth Symp. (Int.) on Combustion, pp. 1459-1470, (1976)

[24]

Bilbao, Millera, Murillo, Heat transfer and weight loss in the thermal decomposition of large wood particles, Proc. Int. Conf. Advances in Thermochemical Biomass Conversion, pp. 874-886, (1994)

[25]

Antal, Friedman, Rogers, Kinetics of cellulose pyrolysis in nitrogen and steam, Combustion Sci. Technol., 21, pp. 141-152, (1980)

[26]

Lewellen, Peters, Howard, Cellulose pyrolysis kinetics and char formation mechanism, Sixteenth Symp. (Int.) on Combustion, pp. 1471-1480, (1976)

[27]

Hajaligol, Howard, Longwell, Peters, Product compositions and kinetics for rapid pyrolysis of cellulose, Ind. Engng Chem. Process Des. Dev., 21, pp. 457-465, (1982)

[28]

Tabatabaie-Raissi, Mok, Antal, Cellulose pyrolysis kinetics in a simulated solar environment, Ind. Engng Chem. Res., 28, pp. 856-865, (1989)

[29]

Gullet, Smith, Thermogravimetric study of the decomposition of pelletized cellulose at 315°C–800°C, Combustion and Flame, 67, pp. 143-151, (1987)

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