4 .8 - ja d v a l M E T A N K O N V E R S IY A S ID A D A S T L A B K I G A Z D A G I O K S ID L O V C H IL A R N IS B A T IN I M U V O Z A N A T D A G I G A Z T A R K IB IG A T A ’S IR I Dastlabki aralashm a, 1 m ol C H 4 ga to ‘g ‘ri keladigan oksidlovchi m ollar soni Konversiya- lanish darajasi, % M uvozanatdagi gaz tarkibi, (h) % H 20 o 2
N 2 c o 2
C H 4 CO C H 4 CO C 0 2 H 2 H 20 n
2
1 0 , 6 — — 9 8 ,00 35,03 0,5 15,90 8,8 5 52,79 21,96 — 1 0 , 6 2,2 6 — 9 8 ,84 29,09 0,1 9 11 , 2 1 4 ,6 6 33,01 14,80 36,13 1 0 , 6 0 ,9 — 9 8 ,69 35,97 0,2 7 12,87 7,3 8 4 3 ,50 17,53 18,47 1
— — 1 9 6 ,06 29.90 0,8 0 25 ,59 14,25 52,48 6 , 8 8 — J a d v a l d a n k o ‘rinib turi bdi ki , b u g ‘-ki sl orodl i va b u g ‘- u g l e r o d t o ‘rt
oksidli m e t a n konversiyasi j a r a yo n i nat ij asi da t a r k i b i d a az ot b o ‘l m a -
g a n k o n v e r t i r l a n g a n g a z a r a l a s h m a s i hosil b o ‘l ar e k a n . A m m i a k
sintezi u c h u n gaz a r a l a s h m a s i hosil qilish u c h u n b u n d a y h o l l a r da
dastlabki g a z t arki bi ga a t m o s f e r a havosi yoki a z o t - v o d o r o d a r a l a s h
m a s i d a n m a ’l u m b i r q is mi q o ‘shiladi.
S h u n d a y qilib, a m a l i y o t d a m e t a n n i b u g ‘- g a z , b u g ‘- u g l e r o d t o ‘rt
oksidli va b u g ‘- h a v o l i k o nve r siya la ri ni quvurli o ‘c h o q l a r d a bir qism
tabiiy gaz ni y oqi sh h i sobi ga hosil q i l i n a d i ga n issiqlikni kiritish usuli
bi lan a m a l g a oshiriladi. B un g a asosiy s ab a b, y u q o r i d a g i u c h t a r e a k
siya b o ‘y i c h a a m a l g a o s h i r i l a y o t g an k im yo v iy r e a ks iya l ar e n d o t e r
m i k j a r a yo nl i g id ad ir .
M et a n n i b u g ‘- ki sl or od- ha voli konversiyasi es a bir b o s q i c h d a shax-
tali k o n v e r t r d a a m a l g a oshiriladi. M e t a n va u n i n g g o m o l o g l a r i n i suv
b u g ‘ili konver siyasi j a r a yo n l ar i ki ch ik tezlik b i l a n ketishi tufayli bu
j a r a y o n l a r q a t t i q k a t a l i z a t o r q o ‘llash b il an a m a l g a oshi ri ladi . B u n
d a n t as hq a r i k a t a l i z a t o r qoMlash o k s i d l o v c h i l a r n i m a ’l u m b i r o rt i q-
chaligida m e t a n n i uglerod m on o ok si di hosil q i lma y q u yi da gi cha r e a k
siya b o ‘y i c h a o z o d u g l er o d hosil b o ‘lishi b i lan k et is hi ni oldini oladi:
C H 4 = S + 2 H 2 - Q7
(4.21)
144
O z o d u g l e r o d n i hosil b o ‘l masligi k at a l i za t o r n i u z o q r o q m u d d a t -
d a i shl ashi ni t a ’m i n l a y d i , c h u n k i k at a l i za t o r n i t as hq i yuza la r i o z o d
ug le r o d b i lan q o p l a n m a g a n b o ‘lgani u c h u n .
