Kushandiswa kwema molecular sieve purification system mumhepo yekuparadzanisa unit

Mhepo yakamanikidzwa nemhepo compressor inoshandisa chaiyo adsorbent activated alumina uye molecular sieve kubvisa mvura, carbon dioxide, acetylene, etc. Somunhu adsorbent, molecular sieve anogona adsorb mamwe magasi akawanda, uye ane pachena muitiro adsorption muitiro. Iyo yakakura polarity yemamorekuru ehukuru hwakafanana, iyo inonyanya kushambadza ne molecular sieve, uye yakakura mamorekuru asina unsaturated, inova nyore kushambadza ne molecular sieve. Inonyanya adsorbs H2O, CO2, C2, H2 uye zvimwe CnHm tsvina mumhepo; Pamusoro peiyo adsorption kugona kwema molecular sieve ine hukama nerudzi rwe adsorbed zvinhu, asi zvakare zvine chekuita nekusangana kwezvinhu zvakanyungudutswa, uye tembiricha, saka mweya wakamanikidzwa usati wapinda muchenese system asiwo kuburikidza nemhepo inotonhorera shongwe kuderedza tembiricha. mhepo isati yapinda mukuchenesa hurongwa, uye mvura iri mumhepo ine chokuita nekushisa, iyo yakaderera tembiricha inoderedza mvura. Naizvozvo, sisitimu yekuchenesa inotanga kupfuura nepakati pemhepo inotonhorera shongwe kuti ideredze tembiricha yemhepo, nekudaro ichidzikisa mvura iri mumhepo.
Iyo gasi yakamanikidzwa kubva kumhepo inotonhorera tower inopihwa mukati meyekuchenesa sisitimu, iyo inonyanya kuumbwa maviri adsorbers, steam heater uye liquid-gasi separator. Iyo molecular sieve adsorber ndeye yakachinjika bhedha mubhedha chimiro, yepasi pasi yakarongedzerwa neyakagadzirwa alumina, iyo yekumusoro layer inorongedzerwa ne molecular sieve, uye maviri adsorbers anochinja basa. Kana imwe adsorber ichishanda, imwe adsorber inogadzirwa patsva uye inotonhora inofuridzirwa kuti ishandiswe. Mhepo yakamanikidzwa kubva kumhepo inotonhorera tower inobviswa neadsorber yemvura, CO2 uye kumwe kusvibiswa kwakadai seCnHm. Molecular sieve regeneration inoumbwa nematanho maviri, imwe ndiyo yakasviba nitrogen kubva muchikamu chemhepo, inopisa nemhepo inopisa kusvika kune tembiricha yekuvandudza, pinda mu adsorber kuti uwedzere kupisa, bvisa iyo adsorbed mvura uye CO2, inonzi nhanho yekudziya. imwe ndiyo yakasviba nitrogen kwete kuburikidza nemudziyo wekupisa, furidzira tembiricha adsorber kusvika kune tembiricha yekamuri, inobvisa iyo adsorbed mvura uye CO2 kunze kweiyo adsorber. Inonzi chikamu chekutonhora. Tsvina yenitrogen inoshandiswa pakudziisa uye kufefetera inotonhora inorasirwa mumhepo kuburikidza ne blowdown silencer.