Mumunda wekuparadzaniswa kwegasi uye kucheneswa, nekusimbiswa kwekuchengetedzwa kwezvakatipoteredza, pamwe chete nekudiwa kwazvino kwekabhoni kusarerekera, CO.2kubatwa, kutorwa kwemagasi anokuvadza, uye kuderedzwa kwezvinosvibisa zvinobuda zvave zvinhu zvakanyanya kukosha. Panguva imwecheteyo, pamwe chete neshanduko uye kukwidziridzwa kweindasitiri yedu yekugadzira, kudiwa kwegasi rekuchena kwakanyanya kunowedzera. Kuparadzanisa gasi uye tekinoroji yekuchenesa inosanganisira yakaderera tembiricha distillation, adsorption uye diffusion. Isu tichasuma maviri akajairika uye akafanana maitiro e adsorption, anoti pressure swing adsorption (PSA) uye inoshanduka tembiricha adsorption (TSA).
Pressure swing adsorption (PSA) musimboti mukuru wakavakirwa pamusiyano weiyo adsorption hunhu hwezvikamu zvegasi mune yakasimba zvinhu uye hunhu hweadsorption vhoriyamu shanduko nekumanikidza, uchishandisa iyo periodic pressure shanduko kupedzisa kuparadzaniswa kwegasi uye kucheneswa. Variable-temperature adsorption (TSA) zvakare inotora mukana wekusiyana kwekuita kwe adsorption yezvikamu zvegasi pane yakasimba zvinhu, asi mutsauko ndewekuti adsorption kugona kuchakanganiswa nekushanduka kwetembiricha, uye kushandisa nguva nenguva kushanduka-tembiricha kuwana kupatsanurwa kwegasi. nokucheneswa.
Pressure swing adsorption inoshandiswa zvakanyanya mukutora kabhoni, hydrogen uye kugadzirwa kweokisijeni, nitrogen methyl kuparadzaniswa, kupatsanurwa kwemhepo, kubviswa kweNOx nemimwe minda. Nekuti dzvinyiriro inogona kuchinjwa nekukurumidza, kutenderera kwekumanikidza swing adsorption kunowanzo ipfupi, iyo inogona kupedzisa kutenderera mumaminetsi mashoma. Uye kuchinjika tembiricha adsorption inonyanya kushandiswa mukubatwa kwekabhoni, kucheneswa kweVOCs, kuomeswa kwegasi uye mimwe minda, inotamirwa nehuwandu hwekupisa kweiyo system, kupisa uye kutonhora nguva yakareba, inoshanduka tembiricha adsorption cycle ichave yakareba, dzimwe nguva inogona kusvika kune yakawanda. kupfuura maawa gumi, saka nzira yekuwana nekukurumidza kupisa uye kutonhora zvakare imwe yenzira dzekusiyanisa tembiricha adsorption yekutsvaga. Nekuda kwemusiyano wenguva yekutenderera kwekushanda, kuti ishandiswe mukuenderera mberi, PSA inowanzoda shongwe dzakawanda dzakafanana, uye 4-8 shongwe inhamba dzakafanana dzakafanana (iyo ipfupi kutenderera kwekushanda, iyo yakawanda yakafanana nhamba). Sezvo nguva yekusiyanisa tembiricha adsorption yakareba, makoramu maviri anowanzo shandiswa kusiyanisa tembiricha adsorption.
Iwo anonyanya kushandiswa adsorbents ekuchinjika tembiricha adsorption uye pressure swing adsorption ndeye molecular sieve, activated kabhoni, silica gel, alumina, nezvimwewo, nekuda kwenzvimbo yayo yakakura chaiyo, zvinodikanwa kusarudza iyo yakakodzera adsorbent zvinoenderana nezvinodiwa zve hurongwa hwekuparadzanisa. Pressurization adsorption uye atmospheric pressure desorption ndiwo hunhu hwekumanikidza swing adsorption. Dzvinyiriro yepressurization adsorption inogona kusvika akati wandei MPa. Tembiricha yekushanda yekusiyanisa tembiricha adsorption kazhinji iri padyo nekamuri tembiricha, uye tembiricha yekupisa desorption inogona kusvika kupfuura 150 ℃.
Kuti uvandudze kushanda nesimba uye kuderedza kushandiswa kwesimba, vacuum pressure swing adsorption (VPSA) uye vacuum tembiricha swing adsorption (TVSA) matekinoroji anotorwa kubva kuPSA nePSA. Iyi nzira yakanyanya kuoma uye inodhura, ichiita kuti ive yakakodzera kune yakakura-yakakura gasi kugadzirisa. Vacuum swing adsorption is adsorption paatmospheric pressure uye desorption nekupomba vacuum. Saizvozvo, vacuuming panguva ye desorption process inogona zvakare kudzikisa tembiricha ye desorption uye kunatsiridza desorption kushanda zvakanaka, izvo zvinozoita mukushandiswa kweyakaderera-giredhi kupisa mukuita kwevacuum kusiyanisa tembiricha adsorption.
Nguva yekutumira: Feb-05-2022
