Usoro Nitrogen (II) Nkwadebe nke Nitrogen

Ndị na-emepụta Nitrogen Mmepụta - Ụlọ ọrụ mmepụta Nitrogen China & Ndị na-ebubata (xinfatools.com)

Nitrogen bụ isi akụkụ nke ikuku, na-aza ihe dịka 78% nke ikuku. Elemental nitrogen N2 bụ gas na-enweghị isi na enweghị isi n'okpuru ọnọdụ nkịtị. Njupụta gas n'okpuru ọkọlọtọ steeti bụ 1.25 g / l. Ebe agbaze bụ -210 ℃ na isi ihe bụ -196 ℃. Liquid nitrogen bụ ihe na-ekpo ọkụ na-ekpo ọkụ (-196 ℃).

Taa, anyị ga-ewebata ọtụtụ ụzọ isi mepụta nitrogen n'ụlọ na ná mba ọzọ.

Enwere ụzọ mmepụta nitrogen n'ozuzu ụlọ ọrụ mmepụta ihe atọ: cryogenic ikuku nkewa nitrogen mmepụta, mmepụta ikuku nitrogen mmepụta, na mmepụta nitrogen nkewa akpụkpọ ahụ.

Nke mbụ: Cryogenic ikuku nkewa usoro mmepụta nitrogen

Mmepụta nitrogen ikuku nke Cryogenic bụ usoro mmepụta nitrogen ọdịnala nke nwere akụkọ ihe mere eme nke ihe fọrọ nke nta ka ọ bụrụ ọtụtụ iri afọ. Ọ na-eji ikuku dị ka akụrụngwa, na-akpakọ ma na-asachapụ ya, wee na-eji mgbanwe okpomọkụ mee ka ikuku banye n'ikuku mmiri mmiri. Ikuku mmiri mmiri bụ ngwakọta nke oxygen mmiri mmiri na nitrogen mmiri mmiri. A na-eji ihe dị iche iche esi esi mmiri oxygen na mmiri mmiri nitrogen na-ekewa ha site na nkwụsị nke ikuku mmiri iji nweta nitrogen.

Uru: nnukwu mmepụta gas na ịdị ọcha dị elu nke ngwaahịa nitrogen. Mmepụta nitrogen nke Cryogenic nwere ike imepụta ọ bụghị naanị nitrogen kamakwa mmiri mmiri mmiri, nke na-emezu usoro achọrọ nke nitrogen mmiri mmiri ma nwee ike ịchekwa ya na tankị nchekwa mmiri nitrogen. Mgbe enwere ibu nitrogen ma ọ bụ obere mmezi nke akụrụngwa nkewa ikuku, nitrogen mmiri mmiri na tankị nchekwa na-abanye na vaporizer wee kpoo ọkụ, wee ziga ya na pipeline nitrogen ngwaahịa iji gboo mkpa nitrogen nke usoro nhazi. Usoro ọrụ nke mmepụta nitrogen cryogenic (na-ezo aka na etiti dị n'etiti nnukwu okpomọkụ abụọ) bụ ihe karịrị otu afọ, ya mere, a naghị ewere mmepụta nitrogen cryogenic dị ka njikere.

Mwepu: Cryogenic nitrogen mmepụta nwere ike ịmepụta nitrogen na ịdị ọcha nke ≧99.999%, ma ịdị ọcha nke nitrogen na-ejedebe site na ibu nitrogen, ọnụ ọgụgụ trays, arụmọrụ tray na oxygen dị ọcha na ikuku mmiri mmiri, na nhazi nhazi dị ntakịrị. Ya mere, n'ihi na a set nke cryogenic nitrogen mmepụta akụrụngwa, ngwaahịa ịdị ọcha bụ isi ụfọdụ na-adịghị mma ịgbanwe. Ebe ọ bụ na a na-eme usoro cryogenic na oke okpomọkụ dị oke ala, akụrụngwa ahụ ga-enwerịrị usoro mmalite nke jụrụ oyi tupu etinye ya n'ọrụ nkịtị. Oge mmalite, ya bụ, oge site na mmalite nke expander ruo mgbe ịdị ọcha nitrogen ruru ihe a chọrọ, n'ozuzu ọ bụghị ihe na-erughị awa 12; tupu akụrụngwa abanye n'imegharị ahụ, ọ ga-enwerịrị oge ikpo ọkụ na oge ịgbaze, n'ozuzu awa 24. Ya mere, akụrụngwa mmepụta nitrogen cryogenic ekwesịghị ịmalite ma kwụsị ugboro ugboro, ọ dịkwa mma ka ọ na-arụ ọrụ na-aga n'ihu ruo ogologo oge.

Tụkwasị na nke ahụ, usoro cryogenic dị mgbagwoju anya, na-enwe nnukwu mpaghara, nwere ọnụ ahịa akụrụngwa dị elu, chọrọ ndị ọrụ nlekọta pụrụ iche, nwere ọnụ ọgụgụ buru ibu nke ndị na-arụ ọrụ, ma na-emepụta gas nwayọọ nwayọọ (18 ka 24 awa). Ọ dabara maka nnukwu mmepụta nitrogen mmepụta ihe.

Nke abụọ: Nrụgide Swing Adsorption (PSA) Usoro mmepụta Nitrogen

Nrụgide Swing Adsorption (PSA) teknụzụ nkewa gas bụ ngalaba dị mkpa nke teknụzụ nkewa gas na-abụghị cryogenic. Ọ bụ n'ihi mbọ ndị mmadụ na-agba ogologo oge iji chọta ụzọ nkewa ikuku dị mfe karịa usoro cryogenic.

N'afọ ndị 1970, West German Essen Mining Company rụpụtara nke ọma carbon molecular sieves, na-emeghe ụzọ maka mmepụta nke PSA ikuku nkewa nitrogen mmepụta. N'ime afọ 30 gara aga, teknụzụ a etolitela ngwa ngwa ma tozuo oke. Ọ ghọọla onye asọmpi siri ike nke nkewa ikuku cryogenic n'ọhịa nke mmepụta nitrogen obere na ọkara.

Nrụgide swing adsorption nitrogen mmepụta na-eji ikuku dị ka akụrụngwa na carbon molecular sieve dị ka adsorbent. Ọ na-eji njirimara nke carbon molecular sieve's selective adsorption nke oxygen na nitrogen n'ikuku, na-eji ụkpụrụ nke mgbali swing adsorption (nrụgide adsorption, nrụgide mbelata desorption na molekul sieve regeneration) ikewa oxygen na nitrogen na ụlọ okpomọkụ na-emepụta nitrogen.

Tụnyere cryogenic ikuku nkewa nitrogen mmepụta, mgbali swing adsorption nitrogen mmepụta nwere ịrịba uru: adsorption nkewa na-rụrụ na ụlọ okpomọkụ, usoro dị mfe, ngwá bụ kọmpat, akara ukwu bụ obere, ọ dị mfe na-amalite na kwụsị, ọ. na-amalite ngwa ngwa, mmepụta gas na-adị ngwa ngwa (n'ozuzu banyere 30 nkeji), ike oriri dị ntakịrị, ọnụ ahịa ọrụ dị ala, ogo nke akpaaka dị elu, ọrụ na mmezi dị mma, ntinye skid dị mma, enweghị ntọala pụrụ iche. achọrọ, enwere ike idozi ịdị ọcha nitrogen ngwaahịa n'ime oke, na mmepụta nitrogen bụ ≤3000Nm3 / h. Ya mere, nrụgide swing adsorption nitrogen mmepụta kwesịrị ekwesị karịsịa maka ọrụ oge.

Agbanyeghị, ka ọ dị ugbu a, ndị mmekọ ụlọ na ndị mba ofesi nwere ike imepụta nitrogen na ịdị ọcha nke 99.9% (ya bụ, O2≤0.1%) site na iji teknụzụ mmepụta nitrogen PSA. Ụfọdụ ụlọ ọrụ nwere ike ịmepụta 99.99% nitrogen dị ọcha (O2≤0.01%). Ịdị ọcha dị elu ga-ekwe omume site n'echiche nke teknụzụ mmepụta nitrogen PSA, mana ọnụ ahịa mmepụta dị oke elu na ndị ọrụ agaghị anabata ya. Ya mere, iji PSA nitrogen mmepụta teknụzụ na-emepụta nitrogen dị ọcha ga-agbakwunyere ngwaọrụ nchacha nke ọkwa ọkwa.

Usoro nchacha nitrogen (ọnụọgụ ụlọ ọrụ)

(1) Usoro deoxygenation hydrogenation.

N'okpuru ọrụ nke onye na-eme ihe, ikuku oxygen fọdụrụ na nitrogen na-emeghachi omume na hydrogen agbakwunyere iji mepụta mmiri, usoro mmeghachi omume bụ: 2H2 + O2 = 2H2O. Mgbe ahụ, a na-ewepụ mmiri ahụ site na ihe na-ebuli elu nitrogen compressor, na nitrogen dị ọcha nke nwere isi ihe ndị a na-enweta site na ihicha: N2≥99.999%, O2≤5 × 10-6, H2≤1500× 10-6, H2O≤10.7×10-6. Ọnụ ego nke mmepụta nitrogen bụ ihe dịka 0.5 yuan / m3.

(2) Hydrogenation na usoro deoxygenation.

A na-ekewa usoro a ụzọ atọ: nke mbụ bụ hydrogenation na deoxygenation, nke abụọ bụ dehydrogenation, na nke atọ bụ iwepụ mmiri. A na-enweta nitrogen dị elu dị ọcha na ihe ndị a: N2 ≥ 99.999%, O2 ≤ 5 × 10-6, H2 ≤ 5 × 10-6, H2O ≤ 10.7 × 10-6. Ọnụ ego nke mmepụta nitrogen bụ ihe dịka 0.6 yuan / m3.

(3) Usoro ikuku nke carbon.

N'okpuru ọrụ nke ihe na-akwado carbon (n'ọnọdụ ụfọdụ), ikuku oxygen fọdụrụ na nitrogen nkịtị na-emeghachi omume na carbon nke ihe na-eme ka ọ na-emepụta onwe ya na-emepụta CO2. Usoro mmeghachi omume: C + O2 = CO2. Mgbe usoro nke wepụ CO2 na H2O na-esote, a na-enweta nitrogen dị ọcha nke nwere ihe ndị a: N2 ≥ 99.999%, O2 ≤ 5 × 10-6, CO2 ≤ 5 × 10-6, H2O ≤ 10.7 × 10-6. Ọnụ ego nke mmepụta nitrogen bụ ihe dịka 0.6 yuan / m3.

Nke atọ: nkewa nke membrane na nkewa ikuku nitrogen mmepụta

Nkewa membrane na nkewa ikuku nitrogen mmepụta bụkwa ngalaba ọhụrụ nke teknụzụ mmepụta nitrogen na-abụghị cryogenic. Ọ bụ usoro mmepụta nitrogen ọhụrụ nke malitere ngwa ngwa ná mba ọzọ na 1980s. A kwalitere ma tinye ya n'ọrụ na China n'afọ ndị na-adịbeghị anya.

Mmepụta nitrogen nkewa membrane na-eji ikuku dị ka akụrụngwa. N'okpuru nrụgide ụfọdụ, ọ na-eji ọnụọgụ dị iche iche nke ikuku oxygen na nitrogen dị na eriri eriri oghere iji kewaa oxygen na nitrogen iji mepụta nitrogen. E jiri ya tụnyere ụzọ mmepụta nitrogen abụọ dị n'elu, ọ nwere njirimara nke nhazi akụrụngwa dị mfe, obere olu, enweghị valvụ na-agbanwe, ọrụ dị mfe na mmezi, mmepụta gas ngwa ngwa (n'ime nkeji 3), yana ịgbasa ikike dị mfe karị.

Agbanyeghị, eriri eriri oghere nwere ihe siri ike chọrọ maka ịdị ọcha nke ikuku abịakọrọ. Akpụkpọ ahụ na-adịkarị mfe ịka nká na ọdịda, ọ na-esikwa ike ịrụzi ya. Ọ dị mkpa ka edochie akpụkpọ ahụ ọhụrụ.

Mmepụta nitrogen nkewa nke membrane dabara adaba maka ndị ọrụ obere na ndị na-ajụ ihe nwere ịdị ọcha nitrogen nke ≤98%, ma nwee oke ọrụ-ọnụahịa kacha mma n'oge a; Mgbe nitrogen dị ọcha chọrọ ka ọ dị elu karịa 98%, ọ bụ ihe dị ka 30% dị elu karịa ngwaọrụ mmepụta nitrogen nke nrụgide swing adsorption nke otu nkọwapụta. Ya mere, mgbe a na-emepụta nitrogen dị elu site na ijikọta membrane separation nitrogen mmepụta na nitrogen dị ọcha ngwaọrụ, ịdị ọcha nke nitrogen n'ozuzu bụ 98%, nke ga-eme ka ọnụ ahịa mmepụta na ụgwọ ọrụ nke ngwaọrụ dị ọcha.