简介：Cokeovengasisoneofthemainbyproductsofcokechemi-calsindustry.Onetonofcokeformedcangenerate430m~3ofcokeovengas.Adoptionofappropriatechemicalpro-cessingmethodcanconvertmethanecontainedinthecokeovengasintoCOthatcanbefurtherconvertedintomethanol.ItislearnedthatcurrentlyChinahasconstructedandcom-missionedtenprojectsformanufactureofmethanolfrom

简介：Sincethefirstbatchof350-MWsupercriticalutilityboilerswasputintooperation,theexhaustfluegastemperatureoftheboilershasalwaysbeenhigherthanthedesignedvalue.Themainreasonisthattheheatabsorbedbytheairheaterisnotsufficient.InHuanengDongfangPowerPlant,theexhaustfluegastemperatureisloweredthroughmodificationstotheeconomizerandtheairheater.Theexperimentalresultsrevealthateveryyear,eachboilercouldsave3850tonsofstandardcoalandreduce85tonsofSO2and9000tonsofCO2respectivelyafterretrofit.

简介：ＭｉｃｒｏｄｏｓｉｍｅｔｒｉｃＳｐｅｃｔｒｕｍａｎｄＲａｄｉａｌＤｏｓｅＤｉｓｔｒｉｂｕｔｉｏｎｏｆ２５２ＣｆαＲａｙｉｎＴＥＧａｓ￥ＺｈｕＬｉａｎｆａｎｇ；ＬｉＸｕｅｋａｎ；ＣｈｅｎＸｕｅｂｉｎｇ；ＨｅＹｕｓｈｅｎｇ；ＳｕＹｏｕｗｕａｎｄＪｉ?..

简介：AdustsedimentlayerwasfoundontheoutertubewallwhentheESCP(electrostaticcentrifugalprecipitator)trappeddieselparticulatesorganistersand.TheComptonbackscattermethodwasusedtomeasurethesedimentthicknessduringtheexperiment.Theeffectoftheinletgasvelocityonthedustsedimentlayerwasinvestigated.PIV(ParticleImageVelocimetry)wasusedtomeasurethevelocityfieldbetweentheinnerbarbtubewallandtheoutertubewall.Experimentsshowedthatthethicknessofthesedimentincreasedwithtime,andthesedimentlayeratthelowerendwasmuchthickerthanthatattheupperend.Theagglomerationontheoutertubewallcouldberemovedwhentheinletgasvelocitywasincreasedtoacertainvalue.

简介：这份报纸论述对流动结构和热的隧道几何学的影响的学习转，并且也，他们一个光线的冷却段落的所有墙上的关联煤气的汽轮机片当模特儿。调查在隧道集中于热转移和空气动力学的大小，它是在飞机引擎使用的配置的一个精确代表。为热转移系数和在内部冷却段落的设计使用的压力落下的关联经常从简化模型被开发。一个角落切，对真实引擎段落没有完美的矩形的生气的节的笔记重要，但是包括，肋骨与切半径和特殊取向。因此，这个工作为有很现实主义的特征的光线的冷却几何学的一个模型提供详细液体流动和热转移数据。

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简介：Thispaperdiscribesaone-dimensionalflowmodeltoexplainthebasicmechanismofcoal-gasoutbursts.Abreak-startcriterionofcoal,astheelementaryoutburstcriterion,isgivenapproximately.Inthisidealmodel,thetectonicpressurebeforeexcavation,asaloadoncoalbody,affectsthebreak-startandthentheflowfield.Theflowfieldisdecoupledwiththestressfield,sothatthegasseepagethroughunbrokencoalbody,break-startandconsequenttwo-phaseflow,andpuregasflowcanbeanalysedindependentlyofthestressfield.Thetunnelling,anexternaldisturbancethatmakestheseepageintensifyrelatively,isanessentialfactorforinitiatingoutburst.Understeadytunnelling,seepageoughttotendtobesteadilyprogressive.Fromitsasymptoticsolutioninitiationcriterionisobtained.Thisisdescribedbythreeconditions,possibilitycondi-tion—tectonicpressurecondition,incubationcondition—tunnellingorgasconditionandtriggeringcondi-tion—seepagevelocitycondition.

简介：油气体累积(OGA)的地球年代学是在多周期的石油地质学的一个挑战性的题目附加的盆。由K-Ar，authigenicillite(AI)和液体包括(FI)分析标明日期与磷灰石分裂轨道结合了(在船尾)热建模，在东北Ordos盆(击)抑制二叠的水库的OGA时间的案例研究在这份报纸被进行了。二叠的oil-gas-bearing沙岩核心样品标明日期的AI显示出178108妈的一个宽时间领域。AI年龄的分发介绍主要OGA在二叠的水库处理的2阶段，它分别地与165妈和130妈的2山峰年龄在175155妈和145115妈的时间域发展了。现在二组织与的在船尾热的路径上的样品和他们的投射年龄的FI温度山峰不仅一低并且一座高山峰在9078hallow地下水的范围的温度能满足国家标准。(2)从coalbed生产的水主要包含了NaCl獲漠?慗整?潃牰摯'讚攥?潃污敢?慇?湡?桓污潬?片畯摮慷整?湩?畩楬?潃污楦汥?景?楨慮

简介：ThispaperstudiesthecurrentavailableoptionsforfloatingproductionplatformsindevelopingdeepwateroilfieldsandthepotentialdevelopmentmodelsoffutureoilandgasexplorationintheSouthChinaSea.Adetailedreviewofcurrentdeepwaterplatformsworldwidewasperformedthroughtheexamplesofindustryprojects,andtheprosandconsofeachplatformarediscussed.Fourtypesofplatformsarecurrentlyusedforthedeepwaterdevelopment：tensionlegplatform,Spar,semi-submersibleplatform,andthefloatingproductionsystemoffloading.Amongthese,theTLPandSparcanbeusedfordrytreeapplications,andhavegainedpopularityinrecentyears.Thedrytreeapplicationenablestheextensionofthedrillingapplicationforfixedplatformsintofloatingsystems,andgreatlyreducesthecostandcomplexityofthesubseaoperation.Newlybuiltwettreesemi-submersibleproductionplatformsforultradeepwaterarealsogettingtheirapplication,mainlyduetothemuchneededpayloadfordeepwatermakingtheconversionoftheolddrillingsemi-submersibleplatformsimpossible.Theseplatformshavebeenusedindifferentfieldsaroundtheworldfordifferentenvironments;eachhasitsownadvantagesanddisadvantages.Therearemanychallengeswiththesuccessfuluseofthesefloatingplatforms.Alotoflessonshavebeenlearnedandextensiveexperienceaccumulatedthroughthemanyprojectapplications.Keytechnologiesarebeingreviewedforthesuccessfuluseoffloatingplatformsforfielddevelopment,andpotentialfuturedevelopmentneedsarebeingdiscussed.SomeofthetechnologiesandexperienceofplatformapplicationscanbewellusedforthedevelopmentoftheSouthChinaSeaoilandgasfield.

简介：在这研究，一个起泡使流体化床列，在里面的99公里在高度的直径和960公里，被用来在变化和扩大比率上调查杆和圆盘倡导者的效果。因素的设计(统计途径)和人工的神经网络(ANN)当模特儿被开发在这gassolid预言变化和扩大比率有改变煤气的流动率，床高度，粒子尺寸和密度的使流体化的床。变化和扩大预言了使用这些统计并且为有或没有倡导者的床，ANN模型被发现与相应实验同意很好。统计模型被发现由于它考虑单个、交互的效果的能力比ANN模型优异。杆倡导者被发现在减少床变化，并且在在高煤气的集体速度增加床扩大更有效。

简介：Asensingsystemisdevelopedtomeasuretheweldpoolboundaryandpoolsurfacedeformationingastungstenarcwelding.LaserStrobetechniqueisusedtoeliminatethestrongarclightinterference,andspecularreflectionfromthepoolsurfaceissensedtodescribetherelationbetweenthedeformedstripesandpoolsurfacedepression.Clearimagesofboththepoolboundaryandthedeformedstripesedgesareobtainedduringgastungstenarcweldingprocess,whichlaysfoundationforreal-timemonitoringthepoolsurfacedepressionandweldpenetration.

简介：1.ObjectiveLarge-scalecommercialproductionofshalegasstartedinFuling,ChangningandWeiyuanareasoftheSichuanBasin(Zouetal.,2016)since2010.ThemostnotableshalegassuccessistheLongmaxiorganicrichShaleinJiaoshibafield,SichuanBasin.TheYichangslopeislocatedinthenorthofmiddleYangtzeregion.Thiseastwarddippingslopeisanewprospectiveareaforshalegasexplorationinrecent5years.

简介：Liquidgasificationphenomenonwasobservableinliquid-soliddielectricbarrierdischarge(DBD)experiments.Startingfromclassicalthermodynamics,thisstudyaimedatfindingtilereasonofliquidgasificationintheDBDexperiments.Fluidstaticsandelectrohydrodynamicswereadoptedtoanalyzethemechanismofphasetransitionfromliquidtogas.TheSumotoeffectwasalsoemployedtovisuallyexplainthechangeinthepressureoffluidduetotheelectricfield.ItwasconcludedfromboththeoreticalanalysisandexperimentthatthechangeinliquidpressurewasakeyfactorcausingliquidtogasifyinDBDconditions.Furthermore,itwasstressedthattheliquidpressurewasaffectedbymanyparametersincludingliquidpermittivity,voltage,electricintensity,sizeofthedischargespaceanduniformityoftheelectricfielddistribution,etc.AllofthemaffectedDBDliquidgasification.Therelatedresultswouldprovideusefultheoreticalevidenceformulti-phaseDBDapplications.

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简介：MoleculardynamicssimulationusingauniversalforcefieldhasbeenemployedtodeterminethediffusioncoefficientsofO2andNa2SO4vaporintoB2O3andSiCfrom700Kto1273K,respectively.Einsteindiffusionwasobservedina250～300pssimulation.ThediffusioncoefficientfortheO2rangefromabout9.279×10-9cm2/sforB2O3to2.275×10-10cm2/sforSiCataloadingof32moleculespersimulationbox,thatfortheNa2SO4vaporrangefromabout9.888×10-7cm2/sforB2O3to1.837×10-10cm2/sforSiCataloadingof8moleculespersimulationbox.EnvironmentpropertiesofC/SiCcompositewillbeincreasedviatheB2O3preventingthediffusionofO2andNa2SO4vaporintothepyrolyticinterphaseandcarbonfibers.

简介：WithanextendedLangmuirisotherm,aRiemannproblemforone-dimensionalbinarygasenhancedcoalbedmethane(ECBM)processisinvestigated.AnewanalyticalsolutiontotheRiemannproblem,basedonthemethodofcharacteristics,isdevelopedbyintroducingagasselectivityratiorepresentingthegasrelativesorptionaffinity.Theinfluenceofgasselectivityratioontheenhancedcoalbedmethaneprocessesisidentified.

简介：Theknowledgeofflowregimesisveryimportantinthestudyofatwo-phaseflowsystem.AnewflowregimeidentificationmethodbasedonaProbabilityDensityFunction(PDF)andaneuralnetworkisproposedinthispaper.Theinstantaneousdifferentialpressuresignalsofahorizontalflowwereacquiredwithadifferentialpressuresensor.ThecharactersofdifferentialpressuresignalsfordifferentflowregimesareanalyzedwiththePDF.Then,fourcharacteristicparametersofthePDFcurvesaredefined,thepeaknumber(K1),themaximumpeakvalue(K2),thepeakposition(K3)andthePDFvariance(K4).Thecharacteristicvectorswhichconsistofthefourcharacteristicparametersastheinputvectorstraintheneuralnetworktoclassifytheflowregimes.Experimentalresultsshowthatthisnovelmethodforidentifyingair-watertwo-phaseflowregimeshastheadvantageswithahighaccuracyandafastresponse.Theresultsclearlydemonstratethatthisnewmethodcouldprovideanaccurateidentificationofflowregimes.

简介：InordertomakeabreakthroughinMesozoic-PaleozoicshalegasexplorationintheSouthYellowSeaBasin,acomparisonofthepreservationconditionswasmadewithintheBarnettshalegasreservoirsintheFortworthBasin,theJiaoshibashalegasreservoirsinSichuanBasinandpotentialshalegasreservoirsinGuizhouProvince.Theresultsshowthatthe"Sandwich"structureisofgreatimportanceforshalegasaccumulation.Thereinto,the"Sandwich"structureisakindofspecialreservoir-caprockassemblagewhichconsistoflimestoneordolomiteonthetop,mudstoneorshalelayerinthemiddleandlimestoneordolomiteatthebottom.InconsiderationoftheMesozoic-PaleozoieintheLowerYangtze,andLaoshanUpliftwithweakPaleozoicdeformationandthrustfaultsealingOnbothflanksoftheLaoshanUplift,aconclusioncanbedrawnthatthepreservationconditionsofshalegasprobablydeveloped"Sandwich"structuresintheLowerCambrianandPermian,whicharekeylayersforthebreakthroughofshalegasintheSouthYellowSea.Moreover,thepreferredtargetsforshalegasdrillingprobablylocateatbothflanksoftheLaoshanUplift.

简介：为在Qiongdongnan的中新世、迟了的渐新世阶层的油和煤气的探索前景(琼东南)盆被评估。结构沉积并且水库特征被讨论，有用结论被得出。主要有二座水库并且由钻的井在Qiongdongnan盆盖住集合，这被证明，即，一个集合第二并且Lingshui的第三个成员(陵水)形成，上面的Sanya(三亚)和Meishan(梅山)形成。根据从埋葬历史和井数据的烃评估，都在Yacheng采购岩石(崖城)和Lingshui形成到达了mature-overmature阶段。高温度和过压为油和煤气的移植提供动态条件，当控制差错的盆的长期的活动对他们在胀起的区域的累积不利时。然而，因为在盆的第二等的差错在Sanya时期，和Sanya的结束停止了他们的活动，形成是以后的由Meishan形成的地区性的overlying层盖住，块并且低在第二等的差错附近高举为油和煤气的累积是有利的。而且作为为煤气的移植的另一个重要削尖的区域，一条结构的山脉的最高的位置应该相当是被海洋的泥石头或沙的泥石头在完整的减退时期期间盖住的一个范围，并且因此，水库床不应该在那个位置，但是在它的劣等的著名或邻近的斜坡地区。因此，我们能得出一个结论晚辈低高举并且可能，结构的山脉而非胀起或一条结构的山脉的顶有巨大的水库，并且应该是在Qiongdongnan盆的主要探索目标。

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