ASH FUSION TEMPERATURES UNDER OXIDIZING CONDITIONS

被引：12

作者：

LLOYD, WG ^{[1
]}

RILEY, JT ^{[1
]}

ZHOU, SY ^{[1
]}

RISEN, MA ^{[1
]}

TIBBITTS, RL ^{[1
]}

机构：

[1] WESTERN KENTUCKY UNIV,CTR COAL SCI,BOWLING GREEN,KY 42101

来源：

ENERGY & FUELS | 1993年 / 7卷 / 04期

关键词：

D O I：

10.1021/ef00040a009

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：

The ash fusion temperatures (AFTs) of 70 ashes (obtained from blends of 7 North American source coals of varying rank) have been determined under oxidizing atmospheres in accordance with ASTM method D 1857. These oxidizing AFTs have been compared with the corresponding AFTs obtained under reducing conditions. The temperature spreads, [AFT(OXIDIZING) - AFT(REDUCING)], have been found to vary with ash composition, from -16.5-degrees-F (-9 K) to +425-degrees-F (+236 K). A procedure is described for the development of regression equations to estimate each of the oxidizing AFTs, based upon ash compositional data. The best regressions provide AFT estimates with root mean square errors of 33-36-degrees-F (18-20 K) (n = 67).

引用

页码：490 / 494

页数：5

共 12 条

[1]

[Anonymous], 1992, ANN BOOK ASTM STANDA

[2]

CEELY FJ, 1981, CHEM COAL UTILISATIO, pCH20

[3] PREDICTION OF ASH FUSION TEMPERATURE FROM ASH COMPOSITION FOR SOME NEW-ZEALAND COALS [J].

GRAY, VR .

FUEL, 1987, 66 (09) :1230-1239

[4]

HOUGH DC, 1988, ASME FT8801 ASH FUS

[5] INVESTIGATION OF THE HIGH-TEMPERATURE BEHAVIOR OF COAL ASH IN REDUCING AND OXIDIZING ATMOSPHERES [J].

HUFFMAN, GP ;

HUGGINS, FE ;

DUNMYRE, GR .

FUEL, 1981, 60 (07) :585-597

[6] CORRELATION BETWEEN ASH-FUSION TEMPERATURES AND TERNARY EQUILIBRIUM PHASE-DIAGRAMS [J].

HUGGINS, FE ;

KOSMACK, DA ;

HUFFMAN, GP .

FUEL, 1981, 60 (07) :577-584

[7] ESTIMATION OF ASH SOFTENING TEMPERATURES USING CROSS TERMS AND PARTIAL FACTOR-ANALYSIS [J].

LLOYD, WG ;

RILEY, JT ;

RISEN, MA ;

GILLELAND, SR ;

TIBBITTS, RL .

ENERGY & FUELS, 1990, 4 (04) :360-364

[8]

LLOYD WG, 1991, PREPR PAP AM CHEM SO, V36, P235

[9]

LLOYD WG, IN PRESS J COAL QUAL

[10]

MASON RL, 1989, STATISTICAL DESIGN A, P596

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