Hauv kev sib cais ntawm cov pa roj thiab purification, nrog rau kev ntxiv dag zog ntawm kev tiv thaiv ib puag ncig, ua ke nrog cov kev thov tam sim no rau cov pa roj carbon nruab nrab, CO2kev ntes, nqus cov pa phem, thiab txo cov pa phem emissions tau dhau los ua teeb meem tseem ceeb. Nyob rau tib lub sijhawm, nrog rau kev hloov pauv thiab kho dua tshiab ntawm peb cov kev lag luam tsim khoom, qhov kev thov ntawm cov roj purity siab ntxiv nthuav dav. Gas cais thiab purification technologies muaj xws li kub distillation, adsorption thiab diffusion. Peb yuav qhia txog ob txoj kev sib txawv tshaj plaws thiab zoo sib xws ntawm adsorption, uas yog lub zog viav vias adsorption (PSA) thiab hloov pauv kub adsorption (TSA).
Siab viav vias adsorption (PSA) lub hauv paus ntsiab lus yog raws li qhov sib txawv ntawm qhov sib txawv ntawm cov yam ntxwv ntawm cov khoom siv roj hauv cov khoom siv thiab cov yam ntxwv ntawm cov ntim adsorption hloov nrog lub siab, siv lub sij hawm hloov pauv siab kom ua tiav cov roj sib cais thiab purification. Kev sib txawv-kub adsorption (TSA) kuj tseem siv tau qhov sib txawv ntawm qhov sib txawv ntawm qhov adsorption kev ua tau zoo ntawm cov khoom siv roj, tab sis qhov sib txawv yog tias lub peev xwm adsorption yuav cuam tshuam los ntawm qhov kub thiab txias hloov, thiab siv lub sij hawm hloov pauv-kub kom ua tiav cov pa sib cais. thiab purification.
Siab viav vias adsorption yog dav siv hauv carbon capture, hydrogen thiab oxygen ntau lawm, nitrogen methyl sib cais, huab cua sib cais, NOx tshem tawm thiab lwm yam teb. Vim tias lub siab tuaj yeem hloov pauv sai, lub voj voog ntawm lub siab viav vias adsorption feem ntau luv, uas tuaj yeem ua tiav ib lub voj voog hauv ob peb feeb. Thiab qhov sib txawv ntawm qhov kub thiab txias adsorption feem ntau yog siv rau hauv carbon capture, VOCs purification, roj kom qhuav thiab lwm yam teb, txwv los ntawm lub tshav kub hloov ntawm lub cev, cua sov thiab txias lub sij hawm yog ntev, qhov sib txawv ntawm qhov kub thiab txias adsorption voj voog yuav ntev, qee zaum tuaj yeem ncav cuag ntau dua. tshaj kaum teev, yog li yuav ua li cas kom ua tiav cov cua kub ceev thiab cua txias kuj yog ib qho ntawm cov lus qhia ntawm kev tshawb fawb qhov kub thiab txias adsorption. Vim tias qhov sib txawv ntawm lub sijhawm ua haujlwm, txhawm rau txhawm rau siv cov txheej txheem tas mus li, PSA feem ntau xav tau ntau lub yees nyob rau hauv tib lub sijhawm, thiab 4-8 yees yog cov lej sib npaug (lub voj voog ua haujlwm luv dua, cov lej sib npaug ntau dua). Raws li lub sij hawm sib txawv ntawm qhov kub thiab txias adsorption ntev dua, ob kab feem ntau yog siv rau qhov kub thiab txias adsorption.
Feem ntau siv adsorbents rau qhov sib txawv ntawm qhov kub thiab txias adsorption thiab siab viav vias adsorption yog molecular sieve, activated carbon, silica gel, alumina, thiab lwm yam., vim hais tias ntawm nws loj tshwj xeeb deg cheeb tsam, nws yog tsim nyog los xaiv qhov tsim nyog adsorbent raws li cov kev xav tau ntawm cov khoom. kev sib cais. Pressurization adsorption thiab atmospheric siab desorption yog cov yam ntxwv ntawm lub siab viav vias adsorption. Lub siab ntawm pressurization adsorption tuaj yeem ncav cuag ntau MPa. Kev khiav hauj lwm kub ntawm qhov sib txawv ntawm qhov kub thiab txias adsorption feem ntau nyob ze ntawm chav tsev kub, thiab qhov kub ntawm cov cua sov desorption yuav ncav cuag ntau tshaj 150 ℃.
Txhawm rau txhim kho kev ua tau zoo thiab txo qis kev siv hluav taws xob, lub tshuab nqus tsev siab viav vias adsorption (VPSA) thiab lub tshuab nqus tsev kub viav vias adsorption (TVSA) yog muab los ntawm PSA thiab PSA. Cov txheej txheem no yog qhov nyuaj thiab kim dua, ua rau nws tsim nyog rau kev ua cov pa loj loj. Nqus viav vias adsorption yog adsorption ntawm atmospheric siab thiab desorption los ntawm lub tshuab nqus tsev vacuum. Ib yam li ntawd, lub tshuab nqus tsev thaum lub sij hawm desorption tuaj yeem txo qhov kub ntawm desorption thiab txhim kho desorption efficiency, uas yuav ua rau kev siv cov cua sov qis hauv cov txheej txheem ntawm lub tshuab nqus tsev vacuum hloov pauv kub adsorption.
Post lub sij hawm: Feb-05-2022
