資源描述:
《微波-浸漬聯(lián)合改性活性炭對CS2吸附性能的研究.pdf》由會員上傳分享,免費在線閱讀,更多相關內(nèi)容在行業(yè)資料-天天文庫。
1、石油化工·1348·PETROCHEMICALTECHN0L0GY2011年第40卷第12期。鹋5環(huán)境與化-rl>!氣/微波一浸漬聯(lián)合改性活性炭對CS2吸附性能的研究田生友,梅華,吳文艷(南京工業(yè)大學化學化工學院,江蘇南京210009)[摘要]以活性炭為原料,采用微波正交實驗考察了微波輻射功率、輻射時間、活性炭處理量三因素微波改性活性炭對吸附cs,性能的影響;用過渡金屬溶液和氨水分別浸漬微波改性后的活性炭,考察了微波一浸漬聯(lián)合改性活性炭對吸附cs,的影響。實驗結果表明,微波改性的最優(yōu)實驗條件為微波輻射功率400W、輻射時間3min、活性
2、炭處理量5g;在此條件下,微波改性后的活性炭(AC1)吸附cs2的靜、動態(tài)吸附量分別為0.564,0.542g;用濃度為0.005mol/L的Fe(NO3)3溶液、0.020mol/L的Cu(NO),溶液、質(zhì)量分數(shù)30%的氨水分別浸漬AC1后,3種聯(lián)合改性活性炭對cs2靜、動態(tài)吸附量較原活性炭均有所提高,其中氨水一微波聯(lián)合改性的活性炭對cs2吸附性能最好,對cs2的靜、動態(tài)吸附量分別為0.587,0.572g/g。BET,SEM,F(xiàn)TIR表征結果顯示,活性炭改性后堿性基團的數(shù)量增多,微孔的數(shù)量增大。[關鍵詞]活性炭;微波輻射;吸附;二硫
3、化碳[文章編號]1000—8144(2011)12—1348—07[中圖分類號]TE624.5[文獻標識碼]AAdsorbilityofCS2onModifiedActivatedCarbonbyImpregnation-MicrowaveTianShengyou,MeiHua,WuWenyan(DepartmentofChemicalEngineering,NanjingUniversityofTechnology,NanjingJiangsu210009,China)[Abstract]Activatedcarbon(AC)wasm
4、odifiedthroughmicrowaveradiationandthenimpregnationwithtransitionmetal(Fe”,Cu“)andammoniawitho~hogonalexperimentaldesign.ThemodifiedactivatedcarbonwasusedinadsorbingCS2.Theeffectsofmicrowavepower,radiationtimeandactivatedcarbondosageinthemodificationonadsorptionofCS2onth
5、emodifiedactivatedcarbonwereinvestigated.Undertheoptimalconditionsofmicrowavepower400W,radiationtime3minandACdosage5g,theadsorptivecapacityoftheactivatedcarbon(AC1)modifiedonlybymicrowaveforCS2instablestateanddynamicstateincreasedto0.564and0.542g/g,respectively.WhenAC1wa
6、simprovedbyimpregnationwith0.005mol/LFe(NO3)3solution,0.020mol/LCu(NO3)2solutionor30%(W)ammoniasolution,itsadsorptivecapacityforCS2washeightened,amongwhich,theadsorptivecapacityofAC1obt~nedbyimpregnationwith30%(W)amoniasolutionwasthehighest,0.587g/ginthestablestateand0.5
7、72g/gindynamicstate.ThemodifiedactivatedcarbonwascharacterizedbymeansofBET,SEMandFTIR.Theresultsshowedthatboththenumbersofthesurfacebasicgroupsandthemicroporesofthemodifiedactivatedcarbonincreased.[Keywords]activatedcarbon;microwaveradiation;adsorption;carbondisulfidecs:
8、是一種典型的工業(yè)毒物,廣泛地存在于水的現(xiàn)實意義。煤氣、天然氣以及生產(chǎn)黏膠纖維、人造棉、橡膠等的活性炭因具有高比表面積和發(fā)達的孔隙結構,工業(yè)尾氣中。微量CS:會使許多催化劑(如合成甲[收稿日期]2011—06