Ndị na-emepụta ihe ọkụkụ dị elu nke China Obere LNG - ahaziri 50 × 104m3 / D eke gas liquefaction osisi - Rongteng

Okwu mmalite

Owuwu nke oru ngo 50 × 10⁴m³/ D eke gas liquefaction oru ngo na-akwado ụlọ ọrụ na otu 10000 m3 LNG zuru ike tank. Akụkụ usoro bụ isi na-agụnye ntinye gas pressurization, decarbonization unit, dehydration unit, mercury and heavy hydrocarbon mwepụ unit, liquefaction unit, refrigerant nchekwa, flash uzuoku pressurization, LNG tank ugbo na loading akụrụngwa.

Kedu ka ọgwụgwọ mbụ nke mmiri ara ehi si arụ ọrụ?

Mmiri nke nri ihe ọkụkụ na-abịa n'ụdị gaseous site na ọkpọkọ. Gas sitere na ala a na-amịpụta nwere ihe ndị na-adịghị ọcha, mmiri na mmiri ndị ọzọ metụtara ya, ya mere, tupu ịṅụ mmanya na-aba n'anya, gas kwesịrị ịgafe usoro ọgwụgwọ iji wepụ ihe ndị na-adịghị mma. The gas na-aga site a usoro nke arịa, compressors na ọkpọkọ ebe gas stepwise kewapụrụ arọ mmiri na adịghị ọcha.

Nke mbụ, a na-ewepụ mmiri na condensate, sochiri yamwepụ nke acid gas(carbon dioxide, CO2), hydrogen sulfide (H2S) na mercury (Hg). Ihe ndị a na-achọghị, n'ihi na ha nwere ike ime ka ice na-etolite n'oge mmanya na-egbu egbu na corrosion na pipeline na ndị na-ekpo ọkụ ọkụ LNG. A na-ekpochasị ngwakọta nke fọdụrụnụ, na ihe ndị ọzọ, dị arọ, gas gas na-ekewapụ na ngwakọta tupu mmiri mmiri emee. Enwere ike ịchekwa hydrocarbons wepụrụ ma ree ya iche. Gas nke fọdụrụ na-enwekarị methane na ụfọdụ ethane, nke a na-ebute na mmiri ọṅụṅụ.

Kedu ka liquefaction nke LNG si arụ ọrụ?

Iji ọkpọkọ ibufe gas abịakọrọ ogologo oge nwere ike ị na-eri ọnụ ma na-ewe oge, ma site n'ime ka ikuku dị jụụ ruo -162 Celsius, ọ na-aghọ ihe mmiri mmiri, olu ya na-ebelata ugboro 600. Nke a na-eme ka o kwe omume iji ụgbọ mmiri na-ebufe gas, a na-emekwa usoro a na ụlọ ọrụ LNG. Usoro nju oyi na LNG na-adabere na usoro ikuku refrigeration thermodynamic, ma na-ewere ọnọdụ na ndị na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ, nke na-amịkọrọ okpomọkụ site na gas. Enwere ike iji ọkụ ọkụ na BOG dị ka mmanụ ọkụ maka turbines ejiri maka mmepụta ike onsite.

Anyị tumadi kewapụrụ n'etiti abụọ isi ụdị nke liquefaction usoro: oge ​​gboo cascade usoro ebe dị iche iche refrigerants nke vaporize na dị iche iche okpomọkụ na-eji, na mbuaha refrigerant okirikiri ebe a na-aga n'ihu, otu ngwakọta nke refrigerants na mma. Kedu ụzọ ọ bụla, ngwaahịa njedebe bụ LNG, nke echekwara na tankị cryogenic na saịtị tupu ebupụ ya.