Binding waste anthracite fines with Si-containing materials as an alternative fuel for foundry cupola furnaces

He Huang, John T. Fox, Fred Scott Cannon, Sridhar Komarneni, Joseph Kulik, Jim Furness

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

An alternative fuel to replace foundry coke in cupolas was developed from waste anthracite fines. Waste anthracite fines were briquetted with Si-containing materials and treated in carbothermal (combination of heat and carbon) conditions that simulated the cupola preheat zone to form silicon carbide nanowires (SCNWs). SCNWs can provide hot crushing strengths, which are important in cupola operations. Lab-scale experiments confirmed that the redox level of the Si-source significantly affected the formation of SiC. With zerovalent silicon, SCNWs were formed within the anthracite pellets. Although amorphous Si (+4) plus anthracite formed SiC, these conditions did not transform the SiC into nanowires. Moreover, under the test conditions, SiC was not formed between crystallized Si (+4) and anthracite. In a full-scale demonstration, bricks made from anthracite fines and zerovalent silicon successfully replaced a part of the foundry coke in a full-scale cupola. In addition to saving in fuel cost, replacing coke by waste anthracite fines can reduce energy consumption and CO2 and other pollution associated with conventional coking.

Original languageEnglish (US)
Pages (from-to)3062-3068
Number of pages7
JournalEnvironmental Science and Technology
Volume45
Issue number7
DOIs
StatePublished - Apr 1 2011

Fingerprint

Cupolas
anthracite
alternative fuel
Coal
Alternative fuels
Foundries
silicon
Nanowires
Coke
Silicon
Coking
crushing
Brick
furnace
material
Compressive strength
Pollution
Demonstrations
transform
Carbon

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry

Cite this

@article{2a0ff24f3d4b41869eb2563bfe21bb37,
title = "Binding waste anthracite fines with Si-containing materials as an alternative fuel for foundry cupola furnaces",
abstract = "An alternative fuel to replace foundry coke in cupolas was developed from waste anthracite fines. Waste anthracite fines were briquetted with Si-containing materials and treated in carbothermal (combination of heat and carbon) conditions that simulated the cupola preheat zone to form silicon carbide nanowires (SCNWs). SCNWs can provide hot crushing strengths, which are important in cupola operations. Lab-scale experiments confirmed that the redox level of the Si-source significantly affected the formation of SiC. With zerovalent silicon, SCNWs were formed within the anthracite pellets. Although amorphous Si (+4) plus anthracite formed SiC, these conditions did not transform the SiC into nanowires. Moreover, under the test conditions, SiC was not formed between crystallized Si (+4) and anthracite. In a full-scale demonstration, bricks made from anthracite fines and zerovalent silicon successfully replaced a part of the foundry coke in a full-scale cupola. In addition to saving in fuel cost, replacing coke by waste anthracite fines can reduce energy consumption and CO2 and other pollution associated with conventional coking.",
author = "He Huang and Fox, {John T.} and Cannon, {Fred Scott} and Sridhar Komarneni and Joseph Kulik and Jim Furness",
year = "2011",
month = "4",
day = "1",
doi = "10.1021/es102684k",
language = "English (US)",
volume = "45",
pages = "3062--3068",
journal = "Environmental Science & Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "7",

}

Binding waste anthracite fines with Si-containing materials as an alternative fuel for foundry cupola furnaces. / Huang, He; Fox, John T.; Cannon, Fred Scott; Komarneni, Sridhar; Kulik, Joseph; Furness, Jim.

In: Environmental Science and Technology, Vol. 45, No. 7, 01.04.2011, p. 3062-3068.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Binding waste anthracite fines with Si-containing materials as an alternative fuel for foundry cupola furnaces

AU - Huang, He

AU - Fox, John T.

AU - Cannon, Fred Scott

AU - Komarneni, Sridhar

AU - Kulik, Joseph

AU - Furness, Jim

PY - 2011/4/1

Y1 - 2011/4/1

N2 - An alternative fuel to replace foundry coke in cupolas was developed from waste anthracite fines. Waste anthracite fines were briquetted with Si-containing materials and treated in carbothermal (combination of heat and carbon) conditions that simulated the cupola preheat zone to form silicon carbide nanowires (SCNWs). SCNWs can provide hot crushing strengths, which are important in cupola operations. Lab-scale experiments confirmed that the redox level of the Si-source significantly affected the formation of SiC. With zerovalent silicon, SCNWs were formed within the anthracite pellets. Although amorphous Si (+4) plus anthracite formed SiC, these conditions did not transform the SiC into nanowires. Moreover, under the test conditions, SiC was not formed between crystallized Si (+4) and anthracite. In a full-scale demonstration, bricks made from anthracite fines and zerovalent silicon successfully replaced a part of the foundry coke in a full-scale cupola. In addition to saving in fuel cost, replacing coke by waste anthracite fines can reduce energy consumption and CO2 and other pollution associated with conventional coking.

AB - An alternative fuel to replace foundry coke in cupolas was developed from waste anthracite fines. Waste anthracite fines were briquetted with Si-containing materials and treated in carbothermal (combination of heat and carbon) conditions that simulated the cupola preheat zone to form silicon carbide nanowires (SCNWs). SCNWs can provide hot crushing strengths, which are important in cupola operations. Lab-scale experiments confirmed that the redox level of the Si-source significantly affected the formation of SiC. With zerovalent silicon, SCNWs were formed within the anthracite pellets. Although amorphous Si (+4) plus anthracite formed SiC, these conditions did not transform the SiC into nanowires. Moreover, under the test conditions, SiC was not formed between crystallized Si (+4) and anthracite. In a full-scale demonstration, bricks made from anthracite fines and zerovalent silicon successfully replaced a part of the foundry coke in a full-scale cupola. In addition to saving in fuel cost, replacing coke by waste anthracite fines can reduce energy consumption and CO2 and other pollution associated with conventional coking.

UR - http://www.scopus.com/inward/record.url?scp=79953240281&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79953240281&partnerID=8YFLogxK

U2 - 10.1021/es102684k

DO - 10.1021/es102684k

M3 - Article

C2 - 21366305

AN - SCOPUS:79953240281

VL - 45

SP - 3062

EP - 3068

JO - Environmental Science & Technology

JF - Environmental Science & Technology

SN - 0013-936X

IS - 7

ER -