Syn Gas fr o m Co al Gasific atio n and Ammo nia Pr o je c t C S - - PowerPoint PPT Presentation

▶
syn gas fr o m co al gasific atio n and ammo nia pr o je
SMART_READER_LITE
LIVE PREVIEW

Syn Gas fr o m Co al Gasific atio n and Ammo nia Pr o je c t C S - - PowerPoint PPT Presentation

Mar 18, 2024 31 likes •165 views

Syn Gas fr o m Co al Gasific atio n and Ammo nia Pr o je c t C S Bhuto r ia Che mic al E ngine e r Mo b: +91 9810511702 E - mail: bhuto r ia@yaho o .in Pre se nte d in 7 th Inte rna tio na l Co nfe re nc e Plant and T e c hno lo gy so

slide-1
SLIDE 1

Syn Gas fr

  • m Co al Gasific atio n

and Ammo nia Pr

  • je c t

C S Bhuto r ia Che mic al E ngine e r Mo b: +91 9810511702 E

  • mail: bhuto r

ia@yaho o .in Plant and T e c hno lo gy so ur c e : China

Pre se nte d in 7th Inte rna tio na l Co nfe re nc e

Ga sific a tion India : 2016

a t Ne w De lhi 11-12 F e b rua ry 2016

slide-2
SLIDE 2

Co al Gasifie r

  • F

e atur e s

Gasifier has fixed fire grate, non-pressurised version

Air introduced to burn coal inside, and raise temperature, required to trigger gasification subsequently. Steam thereafter sent inside, to generate synthesis gas. Air blowing step and Syn gas generation will alternate in turn. Air blowing step time accounts for 20-25%.No pure oxygen requirement Steam is gasifying agent.

slide-3
SLIDE 3

Ga sific a tio n Pro c e ss 5 ste ps- e a c h c yc le

slide-4
SLIDE 4

Syng a s pro c e ss flo w she e t

Coal Feeder Gasifiers

Scrubbing tower

Cyclone Water Sealer Steam Boiler Gas Tank Release valve Waste-energy boiler

Electrostatic Precipitator

slide-5
SLIDE 5

Co al Standar d & Syn Gas Co nte nt

Anthracite Coal CV 6800kcal/kg Ash <14%； Sulphur <0.5%； Moisture <8%； Volatile <13%； Ash fusion >1250℃ Size 20-30mm

Syn Gas Content:

CO 2 6-8% O 2 0.4% CO 26-30% H

2 40-44%

CH

4 0.5-1.5%

N2 20-22% H

2S ≤1000mg / Nm3

slide-6
SLIDE 6

Syn Gas Pr

  • c e ssing E

quipme nt

Cyc lo ne Dust Re mo ve r Ga s Co lle c tio n T a nk

We t T a nnin E xtra c t De sulfurisa tio n se tup

slide-7
SLIDE 7

Ammo nia Pr

  • c e ss fr
  • m Syn Gas/

Co al Gasific atio n

High press compressors Low press compressors

Coal gas Anthracite Gas tank

Steam drum

Alternation

PSA decarbonization TO 1ST LOW COMPREESORS General Desulfurization Remove off CO From 2ed low compressor To 3rd low compressor Out from 4th low compressors Fine desulfurization

Methanol alkylation

Out 2ed Low compressor To 3rd high press compressor s Synthesis ammonia Out from 3rd high compressors

slide-8
SLIDE 8

1 Nor mal Pr e ss De sulfur ization

De sulfuriza tio n liq uid is: Na 2CO3, Na VO3 a nd ta nning e xtra c ts.

H2S in c o a l g a s a fte r p ro c e ss: ≤50mg / m3

2 De sulfur ization by Gas Alte r nation

H2S a fte r p ro c e ss: ≤5mg / m3

3.a. Pur ifying-CO+H2O shift r e ac tion r e sulting CO2 3.b. Pur ifying-PSA De c ar bur ization,for CO2 r e moval 4 F ine De sulfur iation

（H

2S+COS）≤0.1ppm.

5 Me thanolizing and Alkylation

CO+CO 2 a fte r me tha no liza tio n

≤0.3％

CO+CO 2 after alkylation ≤15ppm

Syn Gas Pur ific tio n fo r Ammo nia inc luding de sulphur isatio n and CO r e mo val

slide-9
SLIDE 9

Ammo nia Plant with Syn Gas-1

slide-10
SLIDE 10

Ammo nia Plant with Syn Gas-2

slide-11
SLIDE 11

400 T PD Ammo nia Pr

  • je c t-

Gasifie rOpe r atio n Par ame te r s

Syn gas quantity : 55000Nm³/h,

  • No. of Coal gasifier: 8 (each Diameter 3.2m )

Coal input : 21.667T/h (520T/d) Coal consumption : 1300Kg/T ammonia Extra Coal for Waste-energy boiler: 4T/h, CV 4000Kcal/kg, Coal consumption: 240Kg/T ammonia; Coal gas produced at gasifier exit: 56000-60000m³/h Ash & slag: 4T/h Carbon reaming in coal: 10-12%, thermal value: 1200Kcal/kg.

slide-12
SLIDE 12

Steam 0.1MPa : 11T/h, from gasifier water jacket and steam boiler /for gasification Steam 3.82MPa : 45T/h for power generation first and then for gasification, equipments of ammonia plant Steam 0.6MPa :14T/h for other equipment Steam consumption: 840Kg/T ammonia Circulating water :1200T/h ( 960T for scrubbing tower, 240T for electrostatic precipitator) Water consumption : 60T/h, Water per unit ammonia : 3.65T/T Soft water consumption : 62T/h, Soft water per unit ammonia: 3.72T/T Electricity cost : 1020 kwh/t ammonia;

400 T PD Ammo nia Pr

  • je c t-Utilitie s
slide-13
SLIDE 13

Thank You for Attention

Spe ake r Cr e de ntials: C S Bhuto r ia

E duc a tio n: Dua l de g re e in

  • Sc ie nc e (Ma ths) :
  • St. Xa vie r’ s Co lle g e , Ca lc utta 1965

a nd

  • Che mic a l E

ng ine e ring : India n Institute o f T e c hno lo g y, Bo mb a y 1968 b a tc h Industria l E xpe rie nc e : +40 yrs dive rsifie d

Ne w De lhi/ India:

Sye d Da nish Ali SYC Glo b a l PT S Mo b :+91-9555293699 E

  • ma il: syc .g a sific a tio n@ ya ho o .c o m

Co ntac t Channe l