Okwu mmalite
Mmiri mmiri mmiri, nke a na-akpọ LNG n'oge na-adịghị anya, na-eme ka gas dị n'ime ya ghọọ mmiri mmiri site na ime ka ikuku gas dị jụụ n'okpuru nrụgide nkịtị ruo -162 ℃. Eke gas liquefaction nwere ike dị ukwuu ịzọpụta nchekwa na njem ohere, na nwere uru nke nnukwu calorific uru, elu arụmọrụ, na-eme ka itule nke obodo ibu iwu ụkpụrụ, na-eme ka gburugburu ebe obibi nchebe, ibelata obodo mmetọ na na.
Liquefaction bụ isi nke mmepụta LNG na ihe ọkụkụ na-ebuli elu LNG. Ka ọ dị ugbu a, usoro mmịnye gas nke tozuru okè na-agụnye usoro mmiri mmiri na-ekpo ọkụ, usoro mmiri mmiri jụrụ oyi na usoro mmiri mmiri na expander.
Cascade eke gas liquefaction Usoro na-eji dị iche iche esi esi nke refrigerant n'okpuru nkịtị mgbali iji belata refrigeration okpomọkụ nzọụkwụ site nzọụkwụ iji nweta nzube nke eke gas liquefaction.
Mixed refrigerant cycle (MRC) bụ usoro nke a na-eji ihe karịrị ụdị ise nke multi-component refrigerants agwakọta, dị ka C1 ~ C5 Hydrocarbons na N2, dị ka mmiri na-arụ ọrụ iji condense, kpochapu na gbasaa nzọụkwụ site nzọụkwụ iji nweta ike refrigeration na. ọkwa okpomọkụ dị iche iche, wee jiri nwayọọ nwayọọ mee ka ikuku dị n'ime ya dị jụụ. Ngwakọta ngwakọta refrigerant liquefaction usoro na-ekewa n'ime ọtụtụ ụdị dị iche iche nke refrigeration okirikiri.
The liquefaction usoro na expander na-ezo aka usoro nke eke gas liquefaction site na iji elu mgbali refrigerant na-aghọta reverse Claude okirikiri refrigeration na adiabatic mgbasawanye nke turbo expander.
Atụmatụ usoro a gụnyere: nri gas nrụgide na-achịkwa na metering unit, eke gas ọcha unit na eke gas liquefaction unit, refrigerant nchekwa usoro, refrigerant ikesa usoro mkpakọ, LNG nchekwa na loading unit.
Nhazi oke
Iji chepụta LNG Plant Skid, anyị chọrọ oke ndị a.
1) Ọnọdụ ntọala nke imepụta ihe ọkụkụ:
Na-eri nri gas eruba
Nye nrụgide gas
Na-eri nri gas okpomọkụ
Ọdịnaya mmiri efu nke gas nri
2) Ngwakọta gas nri zuru ezu (mole%)
3) Nkọwapụta ngwaahịa:
Gas eke nwere mmiri mmiri:
Nrụgide ọpụpụ
Okpomọkụ dị jụụ n'okpuru nrụgide ọpụpụ
Ọdịnaya nitrogen kacha elu
Ọdịnaya carbon dioxide kacha
