Page 19 - Steel Tech India eMagazine Volume April 2023
P. 19
92/ Ć ,668( Ć $SULO
3URVSHFWV RI +\GURJHQ 8VH LQ 6WHHO ,QGXVWU\
I. N. P. Gupta & P. Banerjee
5HVHDUFK 'HYHORSPHQW &HQWUH IRU ,URQ 6WHHO 6$,/ 5DQFKL ,1',$
Steel industry has access to techQRORJLHV WR PDQDJH
$EVWUDFW
PRVW FRPPRQ HPLVVLRQV 62[ 12[ GXVW KHDY\ PHWDOV
6WHHO 0DNLQJ LV DQ HQHUJ\ LQWHQVLYH SURFHVV DQG HWF WKDW FDQ PHHW LQFUHDVLQJO\ VWULQJHQW UHJXODWRU\
FRQVHUYDWLRQ RI HQHUJ\ LV RQH RI WKH PRVW HႇHFWLYH UHTXLUHPHQWV +RZHYHU PLWLJDWLRQ RI &2 HPLVVLRQV
2
ZD\V WR LPSURYH WKH HQHUJ\ HႈFLHQF\ ZLWK LPSURYHG still elude the industry, as ore based processes, such
HQYLURQPHQWDO IRRWSULQW DQG VLPXOWDQHRXV UHGXFWLRQ
LQ RSHUDWLRQDO FRVW 6WHHO SURGXFWLRQ DFFRXQWV IRU DV WKH EODVW IXUQDFH VPHOWLQJ UHGXFWLRQ DQG GLUHFW
DURXQG RI JOREDO HQHUJ\ GHPDQG DQG RI UHGXFWLRQ SURFHVVHV QHFHVVLWDWH WKH XVH RI FDUERQ
total CO HPLVVLRQV IURP WKH HQHUJ\ V\VWHP &2 and H based reducing agents, including the energy
2
2 2 VRXUFHV FRDO RLO QDWXUDO JDV DQG WKHLU GHULYDWLYHV OLNH
HPLVVLRQV FDQ EH UHGXFHG E\ DGRSWLQJ ORZ FDUERQ
VRXUFHV RI HQHUJ\ RU UHGXFWLRQ DJHQWV XVXDOO\ FRNH WR EULQJ DERXW UHGXFWLRQ RI LURQ R[LGH WR LURQ DW
XVLQJ +\GURJHQ 7KLV SDSHU GLVFXVV EULHÀ\ DERXW LWV KLJK WHPSHUDWXUH )XUWKHU &2 HPLWWLQJ ÀX[HV VXFK DV
2
SURGXFWLRQ JOREDO HႇRUWV DQG FKDOOHQJHV DKHDG IRU OLPHVWRQH DQG GRORPLWH DUH LQWURGXFHG HLWKHU GLUHFWO\
Hydrogen’s use in steel industry. RU DIWHU EHLQJ FRQYHUWHG WR TXLFNOLPH LQWR VWHHOPDNLQJ
SURFHVVHV WR UHPRYH LPSXULWLHV 3URFHVV &2 HPLVVLRQV
2
.H\ZRUGV +\GURJHQ (PLVVLRQ DQG (QHUJ\ IURP IHUURDOOR\ SURGXFWLRQ LQFOXGH IXUWKHU HPLVVLRQV
,1752'8&7,21 IURP WKH XVH RI OLPH ÀX[HV WRJHWKHU ZLWK WKRVH IURP
WKH FRQVXPSWLRQ RI FDUERQ FRQWDLQLQJ HOHFWURGHV DQG
The steel industry worldwide is the single biggest
LQGXVWULDO HQHUJ\ FRQVXPHU DFFRXQWLQJ IRU WKH FDOFLQDWLRQ RI FDUERQDWHV SUHVHQW LQ YDULRXV RUHV
DSSUR[LPDWHO\ RI JOREDO ¿QDO HQHUJ\ FRQVXPSWLRQ $ VPDOO DPRXQW RI SURFHVV &2 HPLVVLRQV LV DOVR
2
DQG RI JOREDO HQHUJ\ VHFWRU &2 HPLVVLRQV JHQHUDWHG GXULQJ WKH FRQVXPSWLRQ RI JUDSKLWH DQRGHV
2
LQFOXGLQJ SURFHVV HPLVVLRQV LQ > @ 2ZLQJ WR LWV in EAFs.
ODUJH GHSHQGHQFH RQ FRDO EDVHG IXHOV DQG UHGXFWLRQ :K\ +\GURJHQ 8VH
DJHQWV ± )LJ > @ LW FRQWULEXWHV WR DURXQG D 7RGD\ VHYHUDO FOHDQHU SDWKZD\V DUH XQGHU GHYHORSPHQW
TXDUWHU RI LQGXVWULDO &2 HPLVVLRQV
2 WKDW ZRXOG VLJQL¿FDQWO\ UHGXFH &2 HPLVVLRQV IRU
2
SULPDU\ LURQ DQG VWHHO SURGXFWLRQ 7KHVH FDQ EH GLYLGHG
EURDGO\ LQWR WZR FDWHJRULHV
³&2 PDQDJHPHQW´ SDWKZD\V DLP WR UHFRYHU DQG
2
PDQDJH WKH &2 DVVRFLDWHG ZLWK WUDGLWLRQDO IRVVLO
2
IXHO EDVHG URXWHV XVXDOO\ YLD WKH GLUHFW DSSOLFDWLRQ
RI FDUERQ FDSWXUH XWLOLVDWLRQ DQG VWRUDJH &&86
³&2 DYRLGDQFH´ SDWKZD\V VHHN WR DYRLG PRVW RI
2
the CO HPLVVLRQV HQWLUHO\ E\ DGRSWLQJ ORZ FDUERQ
2
VRXUFHV RI HQHUJ\ RU UHGXFWLRQ DJHQWV XVXDOO\ XVLQJ
+\GURJHQ +
)LJ *OREDO HQHUJ\ GHPDQG RI VWHHO LQGXVWU\ VHFWRU E\ IXHO 2
STEEL TECH