Page 63 - Steel Tech India eMagazine Volume October 2020

81. Ŗ 01 Ŗ 1EVQDGT

CPF %8 $() CTG PGV ECNQTKſE XCNWGU QH 0) CPF $() (TQO 6CDNG KV KU UGGP VJCV 0) WUG KU OCZKOWO HQT %CUG
TGURGEVKXGN[ 8 CPF 8 $() CTG XQNWOGU QH 0) CPF CV MI 6*/ 2%+ QRGTCVKQP OQFG (QT C RCTVKEWNCT
0)
$() TGURGEVKXGN[ CPF %8 KU VJG PGV ECNQTKſE XCNWG QRGTCVKQP OQFG 0) WUG KU JKIJGUV CU GZRGEVGF HQT
OKZ
QDVCKPGF D[ OKZKPI 0) CPF $() KP 8 8 $() XQNWOG
0)
TCVKQ (QT C RCTVKEWNCT QRGTCVKQP OQFG ' KU MPQYP %CUG 6JG OKZKPI QH 0) KP VJG ICU PGVYQTM GPJCPEGU
FGH
CPF %8 UJQWNF DG UCOG CU VJCV QH JKIJ %8 ICU 6JWU VJG SWCNKV[ QH VJG ICU JKIJGT %8 WUGF HQT JGCVKPI
OKZ
VJG VYQ GSWCVKQPU ECP DG UQNXGF HQT VJG VYQ WPMPQYP 6JG TCVKQ QH 8 8 $() VQ QDVCKP C %8 QH CTQWPF
0)
XQNWOGU 6JG JGCVKPI CPF GNGEVTKECN GPGTI[ FGOCPF M%CN 0O JCU DGGP HQWPF VQ DG CRRTQZKOCVGN[

QH C RCTVKEWNCT QRGTCVKQP OQFG TGOCKPKPI EQPUVCPV 6JG GPGTI[ FGOCPF HQT JGCVKPI TGOCKPKPI VJG UCOG
KPEQTRQTCVKQP QH GZVGTPCN 0) KPVQ VJG ICU PGVYQTM YKNN
NQYGT RQYGT EQCN TGSWKTGOGPV D[ GSWKXCNGPV COQWPV QH UWTRNWU HWGN ICU GPGTI[ GSWCN VQ VJG GPGTI[ QH OKZGF
HWGN GPGTI[ GZVGTPCN 0) KU CXCKNCDNG HQT RQYGT IGPGTCVKQP VJGTGD[
TGFWEKPI VJG PGGF QH CFFKVKQPCN HWGN RQYGT EQCN QT
6.2. Case studies at different operation modes
0) VQ OGGV VJG RNCPV GNGEVTKEKV[ FGOCPF 6JKU KU CNUQ
6JTGG ECUGU QH 0) WUG CV GCEJ QRGTCVKQP OQFG
EJCTCEVGTK\GF D[ $( 2%+ TCVG JCXG DGGP UVWFKGF TGƀGEVGF KP VJG VQVCN RNCPV GPGTI[ EQPUWORVKQP RCVVGTP
shown in Table 5.
z Case 0: $CUG ECUG YJGTG PQ 0) KU WUGF
Table 5: Total energy consumption for each case at
z Case 1: 0) WUGF QPN[ CU C UWDUVKVWVG QH RQYGT
coal different operation modes
z Case 2: 0) QPN[ OKZGF KP ICU PGVYQTM VQ UCVKUH[ BF-BOF route Total energy consumption (GJ/TCS)
JKIJ %8 ICU FGſEKV Y T V TGHGTGPEG QRGTCVKQP OQFG operation
MI 6*/ 2%+ OQFG QRGTCVKQP YJKNG DCNCPEG mode
electricity is produced by power coal BF PCI rate Case 0 Case 1 Case 2 Case 3
(kg/THM) (Base)
z Case 3: 0) OKZGF KP ICU PGVYQTM CU YGNN CU WUGF
CU C UWDUVKVWVG QH RQYGT EQCN

+V KU VQ DG PQVGF VJCV HQT MI 6*/ 2%+ OQFG QH
QRGTCVKQP %CUG KU UCOG CU %CUG $CUG CPF %CUG
KU UCOG CU %CUG FWG VQ PQ FGſEKV QH JKIJ %8 ICU KP Table 6: Plant CO emission for each case at
VJG RNCPV CU RGT CUUWOGF TGHGTGPEG TGSWKTGOGPVU 2
different operation modes
6JG VQVCN GPGTI[ EQPUWORVKQP VQVCN RNCPV %1 GOKUUKQP
2
CPF VQVCN HQUUKN HWGN EQUV CTG ECNEWNCVGF HQT GCEJ ECUG BF-BOF route Plant CO emission (kg/TCS)
2
CV GCEJ QRGTCVKQP OQFG 6JG TGSWKTGOGPV QH HWGN ICU operation mode
HQT JGCVKPI CPF GNGEVTKECN GPGTI[ EQPUWORVKQP QH GCEJ BF PCI rate (kg/ Case 0 Case 1 Case 2 Case 3
WPKV RGT WPKV RTQFWEV JCU DGGP VCMGP CU UVCPFCTF XCNWGU THM) (Base)
QH CP +PFKCP +52 6JG VQVCN IGPGTCVGF HWGN ICU GPGTI[
KU RTGFKEVGF D[ OQFGN YJKEJ KU WUGF HWTVJGT VQ RTGFKEV
= ?
CFFKVKQPCN RQYGT EQCN TGSWKTGOGPV 0) TGSWKTGOGPVU
HQT UWDUVKVWVKPI RQYGT EQCN CTG ECNEWNCVGF DCUGF WRQP
WPKV GNGEVTKECN GPGTI[ IGPGTCVKQP MGGRKPI KP OKPF VJG 6JG RNCPV %1 GOKUUKQP HQT FKHHGTGPV UEGPCTKQU CTG
2
FKHHGTGPV EQPXGTUKQP GHſEKGPEKGU 6JG 0) WUG RGT VQPPG UJQYP KP 6CDNG 2NCPV %1 GOKUUKQP KU OKPKOWO
2
QH ETWFG UVGGN HQT FKHHGTGPV UEGPCTKQU CTG UJQYP KP 6CDNG HQT %CUG CV MI 6*/ 2%+ QRGTCVKQP OQFG 6JG
GOKUUKQP XCNWGU HQT %CUG CPF %CUG CV C RCTVKEWNCT
Table 4: NG use per tonne of crude steel for each
case at different operation modes QRGTCVKQP OQFG CTG EQORCTCDNG YJGTG CNN QVJGT HQUUKN
HWGN KPRWVU TGOCKPKPI VJG UCOG VJG KPETGCUKPI WUG QH
3
BF-BOF route NG use (Nm /TCS) 0) CPF FGETGCUKPI WUG QH RQYGT EQCN HTQO DCUG ECUG
operation mode
FGVGTOKPGU VJG %1 GOKUUKQP XCNWG # IGPGTCN VTGPF
2
BF PCI rate (kg/ Case 0 Case 1 Case 2 Case 3 QH FGETGCUKPI GOKUUKQP YKVJ KPETGCUKPI WUG QH 0) KU
THM) (Base)
CNUQ QDUGTXGF # OCZKOWO FGETGCUG QH VQP %1 /
2
6%5 HTQO DCUG ECUG KU QDUGTXGF HQT MI 6*/ 2%+
8.8 QRGTCVKQP D[ WUKPI CDQWV 0O QH 0) RGT VQPPG QH

14.4 steel.

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