8 2 Shisen
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Day 2 Tuesday 16 October 2007 Session 8: FBC/ USC/ IGCC/ CCS Speech 2 PR China Two-stage Dry-fed Entrained Flow Coal Gasifier Mr. Xu Shisen Chief Engineer Thermal Power Research Institute (TPRI) PR China
Transcript of 8 2 Shisen
Day 2 Tuesday 16 October 2007 Session 8: FBC/ USC/ IGCC/ CCS
Speech 2 PR China
Two-stage Dry-fed Entrained Flow Coal Gasifier
Mr. Xu Shisen Chief Engineer
Thermal Power Research Institute (TPRI) PR China
A Two-stages Pressurized Entrained Flow Gasification with Dry Feed
Thermal Power Research Institute
Oct. 2007 Xi’an
TPRI
Dr. Xu Shisen
CONTENTS
• The Conception of the Two-stages
Entrained Flow Gasification with Dry Feed
• R&D on the Two-stages Entrained Flow
Gasification with Dry Feed
• The Demonstration of TPRI’s Gasification
Process
TPRI
Gas
ifica
tion
Fixed Bed
Entrained Flow
Fluidized Bed
LurgiBGL
U.G.I.GE-TexacoE-Gas多喷嘴
HTWKRWU-gas
Transport
Slurry feed
Dry feed ShellPrenfloGSPMHITPRI
TPRI
ENTRAINED FLOW GASIFIER
• It has high output, high efficiency and high carbon conversion efficiency than that of moving bed and fluidized bed.
• It has high availability verified by the large scale commercial gasifier.
• Main existing entrained flow gasifiers are: with slurry feed: Texaco, E-Gas, …with dry feed: Shell, Prenflo, GSP,…
TPRI
IGCC AND ENTRAINED FLOW GASIFIER
• Tampa 250MW IGCC----2500t/d Texaco
• Wabash River 260MW IGCC----2500t/d E-Gas
• Buggenum 250MW IGCC----2000t/d Shell
• Purterllano 300MW IGCC----2500~3000t/d Prenflo
TPRI
Advantages:
• High cold gas efficiency, high carbon conversion efficiency, low oxygen consumption
Disadvantages:
• For cooling and separating the molten slag in hot syngas at gasifier outlet, half part of cold syngas must be compressed to quench the hot syngas, that results the added energy loss, high auxiliary power consumption, large scale syngas cooler and much more cost.
ENTRAINED FLOW GASIFIER WITH DRY FEED
TPRI
A TWO-STAGES GASIFIER WITH DRY FEED
•Two stages reaction•Mult-burners•Water wall•Molten slag•No cold syngas quench•Low auxiliary powerconsumption•Small syngas cooler•High cold efficiency•Low oxygen consumption
TPRI
700kg/d,1996, funded by MOST and SPC
36 t/d (10MWth )Funded by National“863” Program2005
1000t/d，2000t/d, 2009
TPRI’s Gasification
TPRI
TPRI
The change rate of second stage coal supply ratio to cold gas efficiency
TPRI
The change rate of second stage coal supply ratioto syngas temperature
TPRI
TPRI
TPRI
TPRI
TPRI
TPRI
TEST RIG
• Capacity : 700kg/d• Pressure: 0~4.0MPa• Temperature: 1300~1600℃• It was built funded by State Power Corporation
of China in 1998• Research on pressured entrained flow
gasification
TPRI
TEST RESULTS
• Pressure：3.0MPa• First stage coal flow rate：16kg/h；• First stage oxygen consumption：0.55Nm3/kg• First stage temperature：1360~1400℃• Second stage coal flow rate：4kg/h；• Second stage oxygen consumption：0Nm3/kg• Second stage temperature: 1100~1150℃
TPRI
• Syngas composition：CO ：51.3% H2：35.1% CO2 ：6.3 %CH4 ：1.2 % N2：6.2%
• Carbon conversion rate：95.9%• Oxygen consumption：294Nm3/1000Nm3 (CO+H2）
• Cold gas efficiency：79.9%• Outlet temperature: 1000~1050 ℃
TEST RESULTS
TPRI
TPRIPilot Scale Facility for TPRI’s Gasification
•Cold efficiency >83%
•Carbon conversion>98%
•Oxygen consumption <320Nm3 /1000(CO+H2)
•Temperature:
1300~1400℃
•Pressure: 3.0～4.0MPa
•Funded by MOST
TPRI
Control Center
TPRI
TPRI
DCS of TPRI’s Gasifier
PILOT SCALE TEST FACILITY
• Capacity: 36-40t/d• Pressure: 3.0MPa• Temperature: 1400~1600℃• Funded by MOST and SPC• To be built in 2004• Finished the tests of 13 Chinese coals
TPRI
Test Coals
>1500>1500141012501190℃FT流动温度
>15001470137011901160℃ST软化温度
13901400130011501140℃DT变形温度
27.0322.53
20.7825.6117.55MJ/kg Qgr,ar收到基高位发热量
27.7323.46
21.8026.5718.80MJ/kg Qnet,ar收到基低位发热量
0.340.55
0.540.870.22%FCdaf全硫
3.086.6610.4211.9712.25%Vdaf收到基氧
1.000.830.570.780.55%Aar收到基氮
2.633.583.574.093.13%Mad收到基氢
72.3958.0355.1666.7147.43%Mt收到基碳
91.1258.03
61.9063.9155.05%FCdaf干燥无灰基固定碳
8.8835.1738.1036.0944.95%Vdaf干燥无灰基挥发分
13.7622.1517.2410.689.92%Aar收到基灰分
1.341.217.524.866.08%Mad空气干燥基水分
6.88.212.54.926.5%Mt全水分
Jincheng anthracite
HuanglingHuatingShenmulignite单位符号项目
TPRI
4.954.994.924.876.51N2（%）
0.140.240.250.370.11H2S+COS（%）
9.187.393.412.763.59CO2（%）
0.020.040.170.260.05CH4（%）
25.7826.9828.4629.3627.84H2（%）
59.9360.3662.7962.3861.9CO（%）
Jincheng anthraciteHuanglingHuating Shenmu lignitecoals
Test Results
TPRI
Test Results
• Carbon conversion rate：98.9%
• Oxygen consumption: 298.6Nm3/1000Nm3（CO+H2）
• Specific coal consumption ：518.2kg/1000Nm3(CO+H2)
• Cold gas efficiency ：83.2%
• CO+H2: 91.74%。
TPRI
Test Results
3.744.924.594.85N2（%）
0.250.250.350.37H2S+COS（%）
2.813.411.072.76CO2（%）
0.770.170.720.26CH4（%）
31.9328.4632.6429.38H2（%）
60.5062.7960.6362.38CO（%）
Two stages First stages Two stage First stage
HuatingShenmu
Gas components
TPRI
Shenmu Coal Slag
Lignite Slag Jincheng Coal Slag
TPRI
Huangling Coal Slag
TPRI
Entrained Flow Gasification TPRI
2226Start time, hr
20201Inner shirt life, y
2 y2 y3 monthsBurners life
≤310350380~410O2 consumption，Nm3/1000Nm3(CO+H2)
1009570Coals flexibility ，%
60～7010070Cost , ％
8010085Auxiliary power, %
90~959080~85Thermal eff.，%
98~999896Carbon conversion，%
90~9387~9074~80（CO+H2），%
8378~8170~75Cold syngas eff.，%
TPRIB(Dry Feed)A(Slurry Feed)
Comparison with the Existing GasifierTPRI
TPRI’s Gasification Process with Syngas Cooler
TPRI
2000t/d TPRI’s Gasifier for 250MW IGCC
• Huaneng Tianjin 250MW IGCC Demonstration Project of CHNG• With syngas cooler• Capacity: 2000t/d • Pressure: 3.0~3.5MPa• Temperature: 1400~1500℃• Syngas flow rate: 165000Nm3/h• O2 consumption：310 Nm3O2/1000Nm3（CO+H2）
• Cold syngas eff.：83%• CO+H2：91%• Net power: 250MW• Start to operate in 2009
TPRI
T
TPRI’s Gasifier with Syngas Cooler
TPRI
激冷水煤气
排污
水出气化炉水冷壁
气化炉水冷壁进
粗
煤
气
煤粉来自磨煤
煤气净
排污
水
洗 塔涤
气化炉
水泵
汽包
蒸汽
除氧水
排污
渣
煤粉 送输
水泵
氧气来自空分
蒸汽
激冷罐
氮气来自空分
文氏
管
洗
涤器
TPRI’s Gasification Process with Quenching
TPRI
TPRI
1000t/d TPRI’s Gasifier for Chemical Project
• 300kt/a Methanol Demonstration Project of Shilin Chemical Ltd.
• With quenching• Capacity: 1000t/d • Pressure: 4.0MPa• Temperature: 1400℃• Syngas flow rate: 82000Nm3/h• O2 consumption：310 Nm3O2/1000Nm3（CO+H2）
• Cold syngas eff.：82%• CO+H2：90%• Production: 250kt/a Methanol • Start to operate in 2009
TPRI
TPRI’s Gasifier with Quenching
