Ignition behaviour of pulp and paper combustible wastes

被引：23

作者：

Sun, CL ^{[1
]}

Kozinski, JA ^{[1
]}

机构：

[1] McGill Univ, Dept Met Engn, Energy & Environm Res Grp, Montreal, PQ H3A 2B2, Canada

来源：

FUEL | 2000年 / 79卷 / 13期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ignition; waste; morphology; combustion;

D O I：

10.1016/S0016-2361(00)00023-5

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Ignition behaviour of combustible wastes from the pulp and paper industry was studied in a modified thermogravimetric furnace. Criteria for ignition and the ignition mechanism were developed. The ignition of combustible wastes was predominantly homogeneous. The influence of different factors, such as particle size, sample type, heating rate and oxygen concentration, was studied. In general, no monotonic relationship between ignition temperature and particle size was observed. Different types of sample had different ignition temperatures (ranging from 203 to 227 degrees C). The ignition temperature increased with heating rate but decreased with oxygen concentration. The combustible waste samples were collected and morphologically analysed at different stages of the heating process. No significant differences in morphology were observed just before and after ignition. The results obtained are useful in identifying the region for injection of combustible wastes into industrial combustors (e.g. boilers or fluidized beds). (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1587 / 1593

页数：7

共 24 条

[1]

Abbas T, 1996, TWENTY-SIXTH SYMPOSIUM (INTERNATIONAL) ON COMBUSTION, VOLS 1 AND 2, P3041

[2]

ALBERTSON OD, 1992, FD19 WAT ENV FED

[3]

[Anonymous], 1995, COMBUSTION INCINERAT

[4] Combustion reactivity and morphological change in coal chars: Effect of pyrolysis temperature, heating rate and pressure [J].

Cai, HY ;

Guell, AJ ;

Chatzakis, IN ;

Lim, JY ;

Dugwell, DR ;

Kandiyoti, R .

FUEL, 1996, 75 (01) :15-24

[5] IGNITION AND COMBUSTION OF COAL PARTICLE STREAMS [J].

DU, XY ;

GOPALAKRISHNAN, C ;

ANNAMALAI, K .

FUEL, 1995, 74 (04) :487-494

[6] THE TRANSIENT IGNITION OF ISOLATED COAL PARTICLE [J].

DU, XY ;

ANNAMALAI, K .

COMBUSTION AND FLAME, 1994, 97 (3-4) :339-354

[7] IGNITION OF COAL PARTICLES - A REVIEW [J].

ESSENHIGH, RH ;

MISRA, MK ;

SHAW, DW .

COMBUSTION AND FLAME, 1989, 77 (01) :3-30

[8]

FIGUEROA CM, 1994, 9411 NCASI, P159

[9]

Kozinski JA, 1996, TWENTY-SIXTH SYMPOSIUM (INTERNATIONAL) ON COMBUSTION, VOLS 1 AND 2, P2495

[10]

Kozinski JA, 1998, TWENTY-SEVENTH SYMPOSIUM (INTERNATIONAL) ON COMBUSTION, VOLS 1 AND 2, P1745

← 1 2 3 →