Page 62 - Steel Tech India eMagazine Volume October 2020

81. Ŗ 01 Ŗ 1EVQDGT

Table 3: Total fossil fuel cost, total energy consumption and associated CO emission for MIDREX-EAF
2
route

DRI required NG in DS heat NG in DS Electrical Total fossil Total energy Total CO
2
MIDREX requirement energy fuel cost consumption emission
consumption
MI 6%5 0O /TCS GJ/TCS 0O /TCS M9J 6%5 +04 6%5 GJ/TCS MI 6%5

1.5
6JG VQVCN GPGTI[ EQPUWORVKQP QH /+&4': '#( TQWVG KU FGſEKV DGKPI OGV WUKPI CPVJTCEKVG EQCN 6JG RNCPV ICU
HQWPF VQ DG EQORCTCDNG YKVJ VJCV QH EQPXGPVKQPCN $( PGVYQTM EQPUKUVU QH %1) DNCUV HWTPCEG ICU $() CPF
$1( TQWVG ` ), 6%5 #NVJQWIJ VJGTG KU PQ CFFKVKQPCN ICU TGEQXGTGF HTQO DCUKE QZ[IGP HWTPCEG $1() 6JG
GPGTI[ TGSWKTGOGPV HQT EQMG OCMKPI TGSWKTGOGPV QH GNGEVTKECN GPGTI[ TGSWKTGOGPV QH $( $1( TQWVG DCUGF
JKIJ RGTEGPVCIG QH RGNNGV KP /+&4': EJCTIG KPETGCUGU +52 KU EQPUKFGTGF VQ DG IGPGTCVGF KP ECRVKXG RQYGT
VJG VQVCN GPGTI[ EQPUWORVKQP 6JG %1 GOKUUKQP HQT RNCPVU YJKEJ TWP QP GZEGUU RNCPV ICU CXCKNCDNG CHVGT
2
/+&4': '#( TQWVG VWTPU QWV VQ DG CDQWV VQP %1 / UCVKUH[KPI JGCVKPI TGSWKTGOGPVU CPF DCNCPEG RQYGT
2
6%5 NGUU VJCP VJCV QH EQPXGPVKQPCN $( $1( TQWVG ` EQCN +V KU CNUQ RQUUKDNG VQ UWDUVKVWVG EQCN DCUGF RQYGT
VQP %1 6%5 6JKU OCTMGF FKHHGTGPEG KP GOKUUKQP IGPGTCVKQP YKVJ 0) DCUGF RQYGT IGPGTCVKQP YJKEJ JCU
2
KU FWG VQ JKIJGT RGTEGPVCIG QH TGFWEVKQP CPF GPGTI[ C JGCV TCVG EQPXGTUKQP GHſEKGPE[ QH CU QRRQUGF VQ
production being carried out by hydrogen rather than QH EQCN CPF RNCPV ICU DCUGF RTQFWEVKQP 6JWU
ECTDQP KP ECUG QH 0) DCUGF QRGTCVKQP 6JG RTQEGUU VJG HWGN GPGTI[ TGSWKTGF VQ RTQFWEG WPKV GNGEVTKEKV[ KU
TQWVG DGKPI 0) KPVGPUKXG VQVCN HQUUKN HWGN EQUV KU JKIJ NGUU HQT 0) DCUGF RQYGT RTQFWEVKQP

+V KU GXKFGPV VJCV WUG QH /+&4': '#( RTQEGUU CNQPI +V KU PGEGUUCT[ VQ JCXG JKIJ %8 ` M%CN 0O ICU

YKVJ $( $1( TQWVG KP C OKZGF TQWVG RNCPV KU NKMGN[ VQ KP VJG RNCPV HQT RTQRGT TWPPKPI QH URGEKſE WRUVTGCO
DTKPI FQYP GOKUUKQPU CU YGNN CU NGCF VQ GPJCPEGF CPF FQYPUVTGCO RTQEGUUGU 6JKU ICU KU RTQFWEGF D[
natural gas use in the plant. OKZKPI %1) CPF $() KP XQNWOG TCVKQ 6JG GPGTI[
QH JKIJ %8 ICU TGSWKTGF KP C RNCPV KU QDVCKPGF D[ OKZKPI
6. USE OF NATURAL GAS IN CONVENTIONAL BF-
GPVKTG %1) YKVJ $() HQT MI 6*/ $( 2%+ TCVG
BOF ROUTE AS A FUEL GAS FOR HEATING
OQFG QH QRGTCVKQP VJKU KU VCMGP CU VJG DCUG ECUG OQFG
AND POWER GENERATION
QH QRGTCVKQP HQT RWTRQUGU QH OQFGNNKPI 6JG GPGTI[
6JKU UGEVKQP CKOU VQ NQQM KPVQ VJG UEQRG QH WVKNKUKPI TGSWKTGOGPV HQT FQYPUVTGCO RTQEGUUKPI QH RTQFWEV
0) KP EQPXGPVKQPCN EQCN DCUGF $( $1( TQWVG QH UVGGN YJGTG VJG JKIJ %8 ICU KU WUGF HQT JGCVKPI KU VCMGP CU
RTQFWEVKQP KP YJKEJ 0) ECP DG WUGF CU C HWGN ICU HQT VJG DCUG ſIWTG #V JKIJGT 2%+ TCVG OQFG QH QRGTCVKQP
JGCVKPI KP FKHHGTGPV WPKVU D[ OKZKPI KP VJG RNCPV ICU EQMG TCVG FGETGCUGU VJGTGD[ NQYGTKPI VJG CXCKNCDKNKV[ QH
PGVYQTM QT CPF CU HWGN HQT RTQFWEVKQP QH GNGEVTKEKV[ VJWU %1) KP C RNCPV 6JG FQYPUVTGCO JKIJ %8 ICU GPGTI[
TGRNCEKPI VJG WUG QH RQYGT EQCN TGSWKTGOGPV TGOCKPKPI VJG UCOG VJG FGſEKV QH JKIJ %8

6.1. Methodology for estimation of natural gas use ICU GPGTI[ KU OGV D[ OKZKPI 0) CPF $() KP C TCVKQ UWEJ
VJCV DQVJ FGſEKV GPGTI[ CPF JKIJ %8 TGSWKTGOGPVU CTG
6JTGG FKHHGTGPV OQFGU QH $( $1( TQWVG DCUGF +52 OGV 6JG XQNWOG QH 0) CPF XQNWOG QH $() TGSWKTGF
QRGTCVKQP JCXG DGGP UVWFKGF DCUGF WRQP FKHHGTGPV CTG ECNEWNCVGF D[ UKOWNVCPGQWUN[ UQNXKPI 'SWCVKQPU
RWNXGTK\GF EQCN KPLGEVKQP 2%+ TCVGU KP $( CPF
CPF MI 6*/ 6JG EQMG TCVG KU FGVGTOKPGF
DCUGF QP VJG KPRWV 2%+ TCVG D[ WRFCVGF $( OQFGN
= ? YJKEJ KP VWTP FGEKFGU VJG EQMG QXGP UK\G EQMKPI
EQCN TGSWKTGOGPV CPF CXCKNCDKNKV[ QH EQMG DTGG\G CPF
EQMG QXGP ICU %1) YKVJKP VJG RNCPV 6JG UKPVGTKPI
RTQEGUU TGSWKTGOGPV KU EQPUKFGTGF VQ DG MI ECTDQP
RGT VQP QH UKPVGT YJKEJ KU UWRRNKGF D[ EQMG DTGG\G VJG
Where E KU VJG FGſEKV QH JKIJ %8 ICU GPGTI[ %8
FGH 0)

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