Nkọwa
Nchacha gas eke (decarbonization), bụ ihe dị mkpa na nhicha ma ọ bụ ọgwụgwọ gas eke. PSA bụ teknụzụ decarbonization obere ike nke na-enweta adsorption na desorption CO2 site na ịgbanwe nrụgide ọrụ. Teknụzụ a na-amịkọrọ ma kewapụ CO2 na gas eke na nrụgide ọrụ nke 0.5~1MPa, wee na-enweta mwepụ vacuum iji mezue mmeghari nke adsorbent. Usoro PSA bụ nke adsorbent anụ ahụ, ọ bụ ezie na e jiri ya tụnyere adsorption kemịkalụ, ikike adsorption ya pere mpe ma nhọrọ ya dị ala; Agbanyeghị, usoro PSA dị mfe, adsorbent ahụ nwere ndụ ọrụ ogologo oge, ọ dị mfe imeghari, ma nwee obere oriri ike. N'otu oge ahụ, ọ nwekwara uru dị ka akpaaka dị elu, uru gburugburu ebe obibi dị mma, na mgbanwe dị elu nke ọrụ. Karịsịa mgbe a na-emeso gas nri nrụgide dị elu, ọ dịghị mkpa ịpịnye ya ọzọ. Enwere ike iji usoro PSA rụọ ọrụ n'ọnọdụ okpomọkụ ụlọ na-enweghị mkpa ikpo ọkụ na oyi, na-azọpụta ugboro 1-2 nke oriri ike ma e jiri ya tụnyere usoro TSA; Ọzọkwa, ma e jiri ya tụnyere usoro TSA nke kwekọrọ na ya, usoro PSA achọghị obere dose nke a na-etinye n'ime ahụ.
Ọdịnaya nke carbon dioxide n'ọkwa mma gas eke ekwesịghị ịbụ ihe karịrị 3%. Na carbon dioxide n'ime mmiri mgbe ígwè ahụ nwere ezigbo ihe na-emebi emebi. Ọ bụrụ na uru PH bụ otu, oke acidity nke carbon dioxide dịkwa elu, yabụ oke nchara nke carbon dioxide na ígwè dịkwa elu.
Nrụgide nrụgide (PSA) bụ teknụzụ ọhụrụ e ji ekewa ngwakọta gas na teknụzụ nkewa adsorption. Ma e jiri ya tụnyere usoro nnabata kemịkalụ ọdịnala, teknụzụ PSA na-adọrọ adọrọ n'ụzọ akụ na ụba maka iwepụ na mgbake nke H2S na CO2 site na gas eke, a na-emepụtakwa ya nke ọma.
Teknụzụ nkewa gas PSA nwere uru dị na ọrụ dị mfe, obere mfu nrụgide, ịkpọ nkụ mgbe ị na-ewepụ CO2, obere ebe mmiri dị ọcha nke gas na mmiri, ngwaahịa ndị a nwekwara ike imezu ihe achọrọ maka mbupụ gas. Enwere ike iji PSA maka ịtinye CO2 na nhọrọ desulfurization na gas eke.
Chaatị usoro mmiri
A na-eme adsorption n'okpuru nrụgide ma na-eme desorption n'okpuru nrụgide dị ala. Ebe ọ bụ na usoro adsorption dị mkpụmkpụ ma enweghị ike iwepụ okpomọkụ adsorption n'oge, enwere ike iji ya mee desorption. Ya mere, okpomọkụ nke akwa adsorption nke okpomọkụ adsorption na okpomọkụ desorption kpatara enweghị mgbanwe dị ukwuu, nke a pụrụ iwere dị ka usoro isothermal. Ọrụ akwa adsorption otu oge, ma ọ bụ adsorption okpomọkụ ma ọ bụ adsorption nrụgide, n'ihi na a chọrọ ka adsorption ahụ dịghachi ọhụrụ, adsorption ahụ na-akwụsị akwụsị. N'ime ụlọ ọrụ, a na-eji akwa adsorption abụọ ma ọ bụ karịa, ka a na-eme adsorption na regeneration nke akwa adsorption n'otu oge (ma ọ bụ n'otu oge), iji hụ na usoro adsorption niile na-aga n'ihu.
Atụmatụ ọrụ
Arụmọrụ nke skid decarbonization pressure swing adsorption skid bụ 90%. Enwere ike kewaa CO2 site na mgbanwe nrụgide na adsorption anụ ahụ, na-enweghị mmeghachi omume kemịkalụ. Na mgbakwunye na iwepụ CO2, a na-eji teknụzụ PSA eme ihe nke ukwuu na mgbake na nhicha nke H2, CH4, CO, CO2 na gas ndị ọzọ.
