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1、載硫活性炭脫除天然氣中單質(zhì)汞的研究呂維陽，劉盛余篤能子禮超，汪雪婷，吳蕭(成都信息工程大學資源環(huán)境學院，大氣環(huán)境模擬與污染控制省高校重點實驗室，四川成都610225)摘耍：在固定床反應(yīng)裝置上考察了商業(yè)載硫活性炭脫除天然氣中氣態(tài)HgO的吸附性能、影響因素、再牛方法以及吸附動力學，同時結(jié)合BET,FTIR,XRD等表征手段提出載硫活性炭脫汞機理?結(jié)果表明，空速對脫汞效率限制作用有限,空速從12000h提高至48000hz脫除率變化范圍在7%以內(nèi)?增加汞濃度在初始階段可以提高其脫汞率,增加單位質(zhì)量活性炭對汞的吸附量，提高溫度會增加吸附體系內(nèi)的活化分子，提高脫
2、汞率，溫度在80°C時效果最優(yōu)，但是溫度過高則會產(chǎn)牛負面效應(yīng)?不同階段的動力學擬合結(jié)果表明化學吸附是整個吸附過程的控制步驟?熱脫附實驗表明載硫活性炭的脫汞溫度是在300-450°C,再生后對汞的吸附能力減弱，其原因可歸為再生過程中碳硫鍵的損失和活性炭二次碳化時表面的燒蝕.關(guān)鍵詞：載硫活性炭；天然氣；影響因素；動力學；脫附中圖分類號：X51文獻標識碼：A文章編號：1000-6923(2016)02-0382-08-1-1Removeelementalmercurybysulfur-impregnatedactivatedcarboninnaturalga
3、s.LuWei-yang,LIUSheng-yu*,NENGZILi-chao,WANGXue-ting,WUXiao(AirEnvironmentaiModelingandPollutionControllingKeyLaboratoryofSichuanHigherEducationInstitutes,ChengduUniversityofinformat!onTechnology,Chengdu610225,China).ChinaEnvironmentalScienee,2016,36⑵：382^389Abstract：Theadsorpti
4、onperformance,influencefactors,regenerationmethodandtheadsorptiondynamicsofthegaseousHgOinnaturalgasremovedbycommercialsulfur-loadedactivatedcarbonwerestudiedonfixedreactingdevice.Meanwhile,theremovalmercurymechanismofS-loadedactivatedcarbonwasputforwardbyapplyingcharacterizatio
5、nmethods,includingBET,FTIR,XRDandetc.Theresultshowedthattherestrictioneffectofairspeedonremovalmercuryefficiencywaslimited.Intheinitialstage,removalmercuryrateandadsorptioncapacityofelementmercurycanberaisedbyincreasingmercuryconcentration.Astemperaturegetshigher,theactivatedmol
6、eculeinthesystemgethigherandtheremovalmercuryratewillbepromoted?Thebesteffectappearedat80°C.Butwhentemperaturewashigherthan80°C,negativeeffectsarose?Dynamicfittingindifferentstagesshowedthatchemicaladsorptionwasthecontrollingstepofthewholeprocess.Besides,thethermaldesorptionexpe
7、rimentshowedthattheremovalmercurytemperatureofs-loadedactivatedcarbonrangedfrom300°Cto450°C,andtheabsorptioncapacityofregenerateactivatedcarbonwasweakenedbecauseofthelossofc-sbondintheregenerationandthesurfaceablationofactivatedcarbonintheprocessoftwice-carbonization.Keywords：s-
8、loadedactivatedcarbon；naturalgas；absorptionmech
