《_煤快速热解焦的微观结构对其气化活性的影响》由会员分享,可在线阅读,更多相关《_煤快速热解焦的微观结构对其气化活性的影响(7页珍藏版)》请在金锄头文库上搜索。
1、 0253- 2409 2012 06- 0648 - 07 2011- 09 - 13 2011- 11- 26。 973 2010CB227000 “ ” I RT0620 08 XD1401306 。 E - m ai l zzj e cus t e du cn Te l 021- 64252974。 200237 800 1 400 XRD CO 2 。 1 200 800 1 200 900 。 。 TQ54 A Ef f e c t o f m i c r o s t r u c t u r e o f r a p i d p y r o l y s i s c h a r o n
2、 i t s g a s i f i c a t i o n r e a c t i v i t y CH E N Lu ZH O U Zh i - j i e LI U Xi n YUAN Sh uai W ANGFu - ch e n Ke y La b o r a t o r y o f Co a l G a s i f i c a t i o n M i n i s t r y o f Ed u c a t i o n Ea s t Ch i n a U n i v e r s i t y o f Sc i e n c e Te c h n o l o g y Sh a n g h a
3、 i 200237 Ch i n a Ab s t r a c t To i nve s ti gate th e re l ati ons h i p be twe e n m i cros tructure of rapi d pyrol ys i s ch ars unde r di f f e re nt te m pe rature sand th e i rgas i f i cati on re acti vi ti e s th re eCh i ne s etypi calcoal swi thdi f f e re ntrankswe repyrol yze d i n a
4、 drop- tubef urnaceat800 1 400 Th es tructureofch arsobtai ne d wasch aracte ri ze d byus i ng XRD X- ray di f f racti on and N 2 gasads orpti on m e th od and th eCO 2 gas i f i cati on re acti vi tyofch arswase xam i ne d us i ng TGA th e rm ogravi m e tri canal yze r Th ere s ul tss h ow th atth
5、es pe ci f i cs urf aceare a i ncre as e swi thth ei ncre as i ng of pyrol ys i ste m pe ratureand re ach e sm axi m um val ueat1 200 wh i l eth egas i f i cati on re acti vi tyofNM l i gni teand SF bi tum i tech arsl owe rsre l ati ve l y Th egas i f i cati on re acti vi tyofZY anth raci tech ari n
6、cre as e sgradual l yat800 1 200 wh i l eth em axi m um val ueofs pe ci f i cs urf aceare a appe arsat900 I ti sprove d th atth e rei snota good corre l ati on be twe e n th es pe ci f i cs urf aceare a and th egas i f i cati on re acti vi tyofch ars H owe ve r th ech ange ofgas i f i cati on re act
7、i vi ty of th re e ch ars wi th i ncre as i ng pyrol ys i s te m pe rature i s i n accordance wi th th e de ve l opm e ntofcarbon crys tal l i tes tructureofch arswh i chre f l e ctsth egraph i ti zati on progre s sofch ars I t i s concl ude d th at th ech angeofcarbon crys tal l i tes tructureofch
8、arsh asa gre ate r i nf l ue nceon th egas i f i cati on re acti vi tyofch arsm adebyrapi d pyrol ys i s Ke y w o r d s drop- tubef urnace carbon crys tal l i tes tructure s pe ci f i cs urf aceare a gas i f i cati on re acti vi ty 、 。 1 3 4 。 ASA 5 RSA 6 7 。 8 9 10 。 XRD TE M 11 14 。 。 XRD 40 6 2012 6 JournalofFue lCh e m i s tryand Te ch nol ogy V ol 40 No 6 Jun 2012 。 1 1 1 NM 、 SF ZY 。 125 180 m 。