overview of worldwide technologies of pyrolysis and perspective of development

8/13/2019 Overview of Worldwide Technologies of Pyrolysis and Perspective of Development

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UDC 665.6/.7

OVERVIEW WORLD TECHNOLOGIES OF PYROLYSIS

AND PERSPECTIVE OF DEVELOPMENT

P. Dominov, R. Gilyazetdinova, B. Zhirnov, I. Tarasov, R. Khlestkin

Ufa State Petroleum Technological University(Salavat Branch )

In this article was made research of the process of pyrolysis and modification of this process. Its was viewed existing technology which are represented by different company. Itsdetermined directions of development and perspectives of using this process in different fieldsof industry.

Keywords pyrolysis steam crac!ing petrochemical olefins process of wastehydropyrolysis catalytic pyrolysis initiated pyrolysis oxidative pyrolysis monomers

Pyrolysis is hardest ty!e o" #ra#kin$ to !rod%#e li$hter !rod%#ts #om!are with "eed.

The main aim o" !yrolysis o" hydro#ar&on in the modern !eriod it is !rod%#tion

o" li$ht %nsat%rated hydro#ar&on's $ases (ole"ini# hydro#ar&ons) s%#h as ethylene,

!ro!ylene, &enzene, &%tadiene, iso!rene, iso&%tylene, &%tanes, a#etylene, &e#a%se this

$ases are %sed mainly to !rod%#e $reat %antity o" im!ortant s%&stan#es and

!olymaterials. In addition !yrolysis it is &est e#onomi#al sol%tion to !rod%#e this $ases,

&e#a%se another methods more e !ensive. *o !yrolysis is !ro#ess o" destr%#tion o" "eed

with hi$h tem!erat%re %s%ally more than + - /-- 01.

2il "eed sto#k #an &e divide on two main ty!e li %id and $aseo%s. De!endin$

on the ty!e o" "eed it's #an &e !rod%#ed mi t%res with di""erent s!e#i"i#ations (ta&le 3).

Ta&le 3

4!!ro imate mat &alan#e o" !yrolysis with di""erent "eed sto#k 536

Prod%#ts, 7 mass Gaseo%s "eed 8i %id "eedethane !ro!ane &%tanes na!htha $as9oil

: ; and methane 3,- ;+,- ; ,- 3>,3 3>,>B%tadiene 3,> ;,- ;,- >, ,-B%tene mi t%re 3,+ 3,- +,> =,- +,-@A 3,+ ,- 3;,+ 3=, -,+Pro!ylene #ontent into @ - 7 5 6. 4t all advanta$es hydro!yrolysis has not re#eived te#hni#al a!!li#ation.

4%stralian "irm 1*IR2 to$ether with "irm BLP has #arried o%t the !ro$ram o"

st%dies "or an estimation o" a te#hni#al and e#onomi#al o!!ort%nity o" an alternative

way o" ole"in !rod%#tion "rom nat%ral $as on the &asis o" rea#tion o" o idizin$

trans"ormation o" methane.

In new !ro#ess 2 12 in a "l%idized &ed rea#tor $o rea#tion o" o idizin$

trans"ormation o" methane and !yrolysis o" ethane and the hi$her alkanes !resent in

nat%ral $as. This !ro#ess is very sele#tivity 53-6.

Pro#ess o" Qa!anese "irm &e is s!ent in "l%idized &ed o" heat #arrier at !resen#e o"

steam and the o y$en %sed "or !artial in#ineration o" raw. Tem!erat%re o" !yrolysis ==- 01,

#onta#t time is -,;9-,< se#onds. Sield o" ethylene at !yrolysis o" oil is a&o%t ;= 7 5336.

4lso !yrolysis %se to !ro#ess wastes o" di""erent materials solid domesti#

wastes, wastes o" !olymaterial. This dire#tion o" !yrolysis is very !ros!e#tive, and nowit's e ist some im!lementations in this "ield.

Plasma "%rna#e to !ro#ess *olid Domesti# astes (*D ). nassorted wastes

(&%t it's demand to e #l%de wastes whi#h #ontent mer#%ry) a sent to lo#kin$ loadin$

#ham&er &y #onveyor. H%rther "rom loadin$ #ham&er in doses wastes are sent to "%rna#e

where are #ra#ked and &%rnt &y streams o" !lasma "rom two !lasmatrons. Gas whi#h $o

o%t "rom !lasma #ham&er $oes to a"ter&%rnin$ #ham&er where $as "inally &%rn o%t and

wastes de#om!ose.1ons%m!tion o" ener$y to !rod%#e synthesis $as and vitri"i#ated sla$ "rom *D

e %al 3;-- k ho%r !er ton o" wastes. Re$eneration o" ele#tri#al ener$y "rom

!rod%#in$ synthesis $as &y t%r&ine $enerator with e""i#ien#y --9


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CONCLUSIONS

Pyrolysis it's one o" the most im!ortant !ro#esses o" !etro#hemistry &%t main

advanta$e this !ro#ess to #om!are with another that it's %ite "le i&le !ro#ess in terms

o" "eed sto#k. In addition in re#ent time this !ro#ess %ite a#tive %se to !ro#ess di""erent

ind%strial waste and it's very $ood advanta$e too "or "%t%re develo!ment. 4nd "inally

we #an see that in the last time oil lose yo%r !osition as a "%el &%t at the same time needs

in !olymaterial in#rease more and more it $ive $ood !ers!e#tive s%#h !ro#ess as

!yrolysis.

REFERENCES

3. 2il Gas ?%ro!ean Ja$azine. ;-->. Mo. 3. P. 2G . J%khina T.M. and et#. Pyrolysis o" Lydro#ar&ons. U. 1hemistry, 3 =/.

. Pi#otti J. Movel ethylene te#hnolo$ies develo!in$, &%t steam #ra#kin$

remains kin$ CC 2il and Gas Qo%rnal. 3 /. Mo. ; . P. ++


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3-. ?dwards Q.L., Thon$ Do K., Tyler R.Q. The 2 12 !ro#ess. 4 new #on#e!t

"or the !rod%#tion o" ole"ins "rom nat%ral $as CC H%el. 3 ;. Mo.

overview of worldwide technologies of pyrolysis and perspective of development

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