Design and simulation of petcoke steam gasification.pptx

8/18/2019 Design and simulation of petcoke steam gasification.pptx

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Design and simulation of petcokesteam gasi cation

Y.KRISHNGuided by

!."amsi K!is#na


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Gasi cation

$#e p!ocess of con%e!sion of ca!bonaceous mate!ials togaseous fuel #a%ing #ig# #eating %alue usually at #ig#

tempe!atu!es &'()) oc* and p!essu!e.

$#e feed fo! gasi cation can begas &e.g.+ natu!al gas*li,uid &e.g.+ lig#t o! #ea%y oils*solid &e.g.+ coal+ pet!oleum -oke+ ignite o! /iomass*


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-ombustion %s gasi cationGasi cation includes pa!tial o0idation of fuel.

-ombustion in%ol%es complete o0idation of fuel.

Reactions in gasi cation 1

-ombustion !eactions/oudoua!d !eaction2ate! gas s#ift !eaction

et#anation

-o s#ift !eaction


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3etcoke as fuel

2#y petcoke as fuel 4Hig# ca!bon content.

o5 cost.

ess en%i!onmental impacts.


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3etcoke 6lemental -omposition &5t7

Composition Green Calcined-a!bon 89.:8;9.(


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Gasifcation plants around theworld with petcoke eedstock

Gasifcation Technology Location Plant output

GE Gasifcation Cbe -ity+ apan (9> 2

E-Gas Gasifcation ima+ ?H :>) 2

E-Gas Gasifcation $e!!e Haute+ IN @E@ 2

GE Gasifcation 3olk+ F @:@ 2

Shell Gasifcation Process ?!issa+ India


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$ypes of gasi e!Entrained ow

3a!ticle si e belo5 ).< mm

Hig# ope!ating tempe!atu!e &' K*Hig# ope!ating p!essu!e &> to


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2#y ent!ained o5 gasi e!4

Ability to #andle %a!iety of solid fuelsHig# t#!oug#put because of #ig# !eaction!ates tempe!atu!e

Hig# ca!bon con%e!sionSyngas f!ee of oils and ta!s

o5 met#ane p!oduction


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Integ!ated Gasi cation -ombined-ycle &IG--*

$#e integ!ated gasi cation combined cycle p!ocess is a

typical gasi cation tec#nology fo! con%e!ting ca!bonaceous

solid fuels like biomass+ coal+ and petcoke into synt#etic gas

&syngas*. Its combined po5e! gene!ation tec#nology is uni,ue+

5it# po5e! gene!ation bot# f!om gas and steam tu!bine cycle.


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Ho5 does igcc 5o!ks4

IG-- is a combination of t5o leading tec#nologies.

$#e !st tec#nology is called coal gasi cation+ 5#ic# uses

coal petcoke to c!eate a clean bu!ning gas &syngas*.

$#e second tec#nology is called combined cycle+ 5#ic# is

t#e most eJcient met#od of p!oducing elect!icity

comme!cially a%ailable today.


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odeling t#e gasi cation p!ocess

$#e gasi cation p!ocess is di%ided into %e mainsections1

. Gas cleanup.=. Gas tu!bine section.:. Steam cycle.


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$#ank you

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Design and simulation of petcoke steam gasification.pptx