|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
不同均压方式对psa和vsa空分制氧过程的影响
DOI: 10.3969/j.issn.1671-7627.2012.04.016, PP. 79-83
Keywords: psa,vsa,制氧,模拟,均压方式,aspen-adsim
Abstract:
对存在于变压吸附(psa)和真空变压吸附(vsa)空分制氧过程中的均压步骤进行研究,应用aspen-adsim软件,模拟并比较4种不同均压方式(塔顶向塔顶均压(t-t),塔底向塔底均压(b-b),塔顶和塔底双向均压(tb),塔顶向塔底均压(t-b))对过程的影响,分析均压步骤的物流浓度、流量以及均压结束时床层轴向浓度分布。结果表明:采用t-b均压方式的psa和vsa过程得到的产品o2纯度和收率最高。在均压步骤,均降床层塔顶出气有利于死空间中o2的回收,且减少床层吸附相中n2的脱附带出,从而得到较高的产品o2收率;均升床层塔底进气可使床层n2的质量摩尔浓度前沿陡峭,塔顶洁净,因此得到较高的产品o2纯度。
| [1] | jiangl,bieglerlt.simulationandoptimizationofpressureswingadsorptionsystemsforairseparation[j].aiche,2003,49(5):1140-1157.
|
| [2] | ruthvendm,farooqs,knaebelks.pressureswingadsorption[m].newyork:vchpublishers,1994:226-230.
|
| [3] | regesu,yangrt.limitsforairseparationbyadsorptionwithlixzeolite[j].indengchemres,1997,36(12):5358-5365.
|
| [4] | budnerz,dulaj,podstawaw,etal.studyandmodelingofthevacuumswingadsorption(vsa)processemployedintheproductionofoxygen[j].chemengresdesign,1999,77(5):405-412.
|
| [5] | behcck,webleypa.thedynamicresponseandcharacteristicsofanoxygenvacuumswingadsorptionprocesstostepperturbations[j].adsorpscitechnol,2003,21(4):319-347.
|
| [6] | cruzp,magalhaesfd,mendesa.ontheoptimizationofcyclicadsorptionseparationprocesses[j].aiche,2005,51(5):1377-1395.
|
| [7] | jeejg,leejs,leech.airseparationbyasmall-scaletwo-bedmedicalo2pressureswingadsorption[j].indengchemres,2001,40(16):3647-3658.
|
| [8] | kennethg,teaguej,edgartf.predictivedynamicmodelofasmallpressureswingadsorptionairseparationunit[j].indengchemres,1999,38(10):3761-3775.
|
| [9] | ruthvendm.principlesofadsorptionandadsorptionprocesses[m].newyork:johnwiley&sons,1984:361-374.
|
| [10] | berlinnh.methodforprovidinganoxygen-enrichedenvironment:us,3280536[p].1966-10-25.
|
| [11] | warmuzinskik.effectofpressureequalizationonpowerrequirementsinpsasystems[j].chemengsci,2002,57(8):1475-1478.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
