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21 4 Vol.21 No.4199810COALCONVERSIONOct.1998加压粉煤流化床气化技术试验研究彭万旺1) 步学朋1) 王乃计2) 谢可玉3) 逄 进3)吴海福1) 陈 庆2) 邓一英2) 张建敏2) 文 芳2) 一套日处理5t煤的加压流化床粉煤气化技术试验装置建成并投入试验运行。进行了5种原料的气化试验。试验采用螺旋和喷嘴两种加料方式。气化炉内的灰团聚与灰选择性分离技术相结合使气化灰渣含灰达90%,煤气冷凝液中无焦油类物质。气化炉产生的煤气供低热值煤气燃烧试验和燃气轮机叶片磨蚀试验之用。介绍了加压流化床气化的工艺试验内容,煤种试验结果及环境特性数据。连续运行试验基本验证了该加压流化床气化系统的工艺可行性、装置可操作性、运行稳定性和操作安全性。 加压,流化床,煤气化 TQ541,TQ5340 引 言60,,,“”,,。“”,“”PFBC,,,。1 流化床气化系统工艺流程及试验条件1.1 、、、、,、、,681.,。,2.5MPa,1150℃,1m,,300mm,5.5m. 0mm～6mm,,1.6MPa,1.2MPa。,,。,,,。,“”。 1);2);3),,100013;、、、 、、。 :1998-05-06。PFBC,,,、、L,。。 ,1 (),,,;(),。900℃～1050℃,950℃,、,,;250℃,0.3MPa～0.5MPa,、,。、、、、,。;。;(、、);。1.2 ,5,、、、1#、2#,,U-Gas,5691.,0mm～6mm,、1#2#0mm～8mm.2 试验结果与讨论2.1 1994,。,、,、,;,(),,,,,;,。68 19981 1#2#/%Mt4.302.407.807.004.40Mad2.761.726.995.694.02Aad16.2613.587.1620.1015.26Vad4.504.6230.1323.5511.99St,ad0.490.680.300.510.50Qgr.ad/MJ/kg26.9928.2628.0124.3626.62/%Cad76.9480.4270.3061.1672.54Had0.580.733.783.091.73Oad0.811.579.647.485.00Nad0.620.621.020.660.57Sad0.490.680.300.510.50/℃DT14401430121013201390ST14601470127013801420FT14801490129014001450/%SiO245.8746.5244.6862.8246.12Al2O331.6931.6818.3818.5328.32TiO21.521.540.810.741.26Fe2O39.149.8711.688.609.50CaO5.804.8212.872.695.82MgO0.860.931.300.680.77Na2O0.520.510.460.300.34K2O0.720.720.842.100.79SO31.101.435.831.824.19Total97.2298.0296.8598.2897.112.1.1 工艺及装置试验研究2.1.1.1 ,、,,,、、、,。。,。,,,。,、。,。,。2.1.1.2 ,500mm,。,。,,,。,。,,,,,(),。,,。,。。2.1.1.3 ,,。,。,,,,。5,,10%,,,702.,,,,(3mm～4mm),,,,;,,,。694 2 1# /% 24.27 89.21 86.31 33.39,,,,,,。,。2.1.1.4 。,,。,,,。,,。3,0.2mm。、。 3 % +80+80～100+100 11.823.464.815.7617.9266.252.1.1.5 ,,,,。、,、,,。、,,。,,。2.1.1.6 ,,,,,。,,,10mg/m3,,。2.1.1.7 ,100%70%50%.,,;,CO2,。,,。2.1.2 试验系统的控制技术与装置运行特性、,、、、,。/,。,、、。,。,。,(),,,,,(),,。712,,20h,1.5h,、()。,,,,,。70 1998。,,,30℃。,。2 2.1.3 试验操作中遇到的主要问题2.1.3.1 ,。,,,,;,,,,,。,。,。,,。2.1.3.2 ,,,。2.1.3.3 、。,,,。,,()。,,,。2.2 ,PFBC(),。PFBCPFBC,,PFBC,,PFBC(850℃)1100℃,,。,52%～94%.,,“”()。,。,,,,,,,,,,,。,,,。。,。H/C,,,,,,,。、。7245。,,。,,、、。,,,,(H2,CO),,,714 ,2。,,,。,,,,1000℃4.5MJ/m3～5MJ/m3,、,1100℃,。4,,、。4 1#2#/MPa0.60.70.70.60.71.0/℃9809909709901000980/kg/h93.585140130150200/m3/h296282378352447350/kg/h556570706060/m3/h390536513492647500/%74.4951.8679.7160.0688.0637.62/%78.8575.9087.0573.5593.6963.57/%H211.278.7513.8816.4816.5613.94CO15.1114.5815.7015.5519.3718.66CH40.000.000.901.100.720.87CO212.0112.5910.499.608.3810.04N260.0062.5058.3056.5054.5554.98CnHm0.000.000.010.010.020.03H2S/mg/m30.820.1130.970.920.490.90/MJ/m33.1252.7863.8074.1414.5004.200,;,,,,,ST100℃。,。,,。,,,,,,。,,。,。,,,。,,,,。、,。、-。,、,-;(),。,。,,()、、、、,。,,,,;,,,;,,,,,,。,。,,,,。、,(0.5mm)。,735100mm。,,72 1998,。160%,(CO+N2)/N23.4,3.0,55%～60%。,,、、Ca/S,60%～84.4%.5 122/MPa2.01.101.100.75/%21609821/m3/h201610.813/kg/h4.811.5143/%H215.1631.5233.9514.2CO18.1228.1739.5617.5CH42.91.532.572.2CO29.3121.2221.1511.2N254.2717.381.256.5CnHm0.010.010.120.01//Ca/S3/%78.72.3 D300mm,,,;、。,;(),、。,。,,:1);2)。,,CO,CO2,;,。,,,。,,。,,,,,;,。,,、、,、。2.4 ,,、,、,。,70%,,。6,。,,、,,。,,,。,。[1] 6 mg/m3 ()()103.7101.336940 810.66803944.56627.2 7561.665018,734 10%～15%,,;,,。,、,,,,。,,,,,“”。3 结 论(1),;、。,。(2)、;,-;10%,。(3),、、,,,,,、。,。 1 ,.U-GAS.:.:,1997.585～5932 .-.:,1994.68～76PILOTTESTOFPRESSURIZEDFLUIDIZEDBEDGASIFICATIONPengWanwang BuXuepeng WangNaiji XieKeyu PangJin WuHaifuChenQing DengYiying ZhangJianminandWenFang(BeijingResearchInstituteofCoalChemistry,ChinaCoalResearchInstitute,Beijing,100013)ABSTRACT Thetestfacilityofpressurizedfluidizedbedgasifier(ID300mm)withcoalca-pacityof5tonsperdayhasbeenestablishedandputintotestoperation.Fivekindsoffeedstockhavebeengasifiedinpressurizedcondition(1.0MPa～2.0MPa).Bothmethodsofscrewingandnozzlespayinghavebeenseperatelyadoptedforstockfeeding.Thetechnologyofashagglomerat-inginbedandtheselectivelyseparatingofashleadtotheashcontentofupto90%.Notaroroilisfoundinthegascondensate.Thegasfromgasifierwasusedforthetestoflowheatingvaluegascombustionandthetestofturbinebladeerrosion.Thepapergivesdescriptionofthecontentofequipmentandprocesstests,theresultsofcoalgasificationpropertiesstudy,andtheenviorn-mentalfactorsofthefluidizedbedgasification.KEYWORDS pressurized,fluidizedbed,coalgasification74 1998