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 ur c e : China Ga sific a tion India : 2016 a t Ne w De lhi 11-12 F e b rua ry 2016
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.
Ga sific a tio n Pro c e ss 5 ste ps- e a c h c yc le
Syng a s pro c e ss flo w she e t Release valve Coal Waste-energy boiler Feeder Gasifiers Cyclone Steam Scrubbing Gas Electrostatic tower Precipitator Boiler Tank Water Sealer
Co al Standar d & Syn Gas Co nte nt Anthracite Coal Syn Gas Content: CO 2 6-8% CV 6800kcal/kg O 2 0.4% <14% ； Ash CO 26-30% <0.5% ； Sulphur H 2 40-44% <8% ； Moisture CH 4 0.5-1.5% <13% ； Volatile N 2 20-22% Ash fusion >1250 ℃ 2 S ≤ 1000mg / Nm3 H Size 20-30mm
Syn Gas Pr o c e ssing E quipme nt Ga s Co lle c tio n We t T a nnin E xtra c t Cyc lo ne Dust T a nk De sulfurisa tio n se tup Re mo ve r
Ammo nia Pr o c e ss fr o m Syn Gas/ Co al Gasific atio n PSA decarbonization Fine desulfurization Synthesis ammonia Anthracite Out from 3 rd Out from 4 th high low compressors compressors Coal gas To 3 rd low compressor Gas tank Low press compressors High press compressors To 3 rd high press Out compressor 2ed From s Low compressor 2ed low Steam drum TO Remove off CO compressor 1 ST LOW COMPREESORS General Alternation Methanol Desulfurization alkylation
Syn Gas Pur ific tio n fo r Ammo nia inc luding de sulphur isatio n and CO r e mo val 1 Nor mal Pr e ss De sulfur ization D e 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 2 S+COS ） ≤0.1ppm . （ H 5 Me thanolizing and Alkylation ≤0.3 ％ CO+CO 2 a fte r me tha no liza tio n CO+CO 2 after alkylation ≤15ppm
Ammo nia Plant with Syn Gas-1
Ammo nia Plant with Syn Gas-2
400 T PD Ammo nia Pr o 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 .
400 T PD Ammo nia Pr o je c t-Utilitie s 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;
Thank You for Attention Spe ake r Cr e de ntials: Co ntac t Channe l C S Bhuto r ia E duc a tio n: Dua l de g re e in Ne w De lhi/ India: - Sc ie nc e (Ma ths) : St. Xa vie r’ s Co lle g e , Ca lc utta 1965 Sye d Da nish Ali a nd SYC Glo b a l PT S - 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 Mo b :+91-9555293699 1968 b a tc h E -ma il: syc .g a sific a tio n@ ya ho o .c o m xpe rie nc e : +40 yrs dive rsifie d Industria l E
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