Li-hydrocarbon tse nkhang hamonate ke motheo oa mefuta e mengata e fapaneng ea lihlahisoa, tse bohlokoa ka ho fetisisa tse sebelisoang ho hlahisa lidae, polyurethanes le likhoele tsa maiketsetso.Indasteri ea Petrochemical ke indasteri e felletseng haholo, empa ethylene ke sehlahisoa sa bohlokoa haholo, hape ke lihlahisoa tsa mantlha tsa olefin.Tlhahiso ea selemo le selemo ea ethylene ka 2012 e ne e ka ba lithane tse limilione tse 143.Ho tloha khale, phepelo le tšebeliso ea ethylene e ne e busoa ke United States e holileng moruong, Europe Bophirima le Japane.Ho tloha ka 2009 kapa 2010, leha ho le joalo, boemo bo fetohile, ha tlhahiso le tšebeliso e fetoha ho ea Bochabela bo Hare le Asia.Haufinyane tjena ketso e matla ea khase ea shale ea Amerika e khutlisitse botsitso ba moruo 'me e bakile keketseho e kholo ea matla a macha a tlhahiso Amerika Leboea.

Hangata Ngls e na le ethane, propane, butane, isobutene le pentane.Tse ling tsa tsona li loketse indasteri ea petrochemical.Ngls e kile ea bonoa e le sehlahisoa se ekelitsoeng ka boleng bo tlase se Chesang haufi le seliba.Leha ho le joalo, morao tjena, batho ba ile ba qetella ba hlokometse ka botlalo bohlokoa ba eona e le thepa e tala ea petrochemical.Ke phetoho ena e matlafalitseng ho hlaphoheloa Amerika Leboea, haholo indastering ea petrochemical ea Amerika.

Bohlokoa ba ho hlaphoheloa ha indasteri ea petrochemical bakeng sa mmaraka oa li-valve ke bofe?

Ho hlaphoheloa indastering ea petrochemical ea US ke litaba tse monate bakeng sa barekisi ba thepa ea thepa, ho kenyeletsoa li-valve.Ho na le menyetla ea khoebo karolong e 'ngoe le e 'ngoe ea ntlafatso ea meralo ea motlakase.

Tšebeliso e tsoelang pele ea khase ea shale e ruileng ka khase ea tlhaho ea condensate (NGLs) e lebisitse ho buloeng ha merero e mengata ea ho cheka, ho fella ka tlhokahalo ea mefuta e mengata ea li-valve tsa hantle Ho kenyelletsa heke, globe, choke, cheke, bolo le li-valve tse ling.Ho na le li-rigs tse ka bang 1,700 tse sebetsang United States - tse ngata haholo ho feta lefats'e lohle li kopantsoe - tlhokahalo ea li-valve tsa hantle e matla ebile e tla ba matla.

Ngls bakeng sa tlhahiso ea petrochemical e hloka marang-rang a inehetseng a lipeipi ho li isa libakeng tsa tlhahiso, joalo ka likarolo tse qhekellang kapa limela tsa petrochemical.Phaephe e tsamaisanang le eona e fane ka 'maraka ho valve ea liphaephe, haholo-holo mocha o phallang ka ho feletseng' me "e ka tsamaisa lifaha li hloekile" valve ea bolo, tlhokahalo e kholo ea valve ea heke.'Me li-actuator tsena li-valve li hloka ho kopanngoa le tsona li fana ka monyetla o motle oa khoebo bakeng sa mmaraka oa lisebelisoa.

Petrochemical Plants ke lisebelisoa tse ikemetseng le tse rarahaneng haholo.Phello ea selemo le selemo ea semela se secha sa petrochemical e ka ba lithane tse limilione tse 1-2.Theko ea semela e ipapisitse le boholo ba eona le sebaka sa eona, empa e tla ba ka har'a lidolara tse limilione tse likete tse 3 ho isa ho tse 4.Theko ea li-valve ka semela e ka ba $35 milione.Le hoja ho tsebahala hore limela tse ncha li fana ka menyetla ea khoebo e ruileng ka ho fetisisa le e pharaletseng ka ho fetisisa bakeng sa indasteri ea li-valve, katoloso ea limela le ho khutlisa lisebelisoa ho amohela lisebelisoa tse ncha tsa tlhahiso le tsona ke tsa bohlokoa, haholo-holo 'marakeng oa US.Hoo e ka bang mefuta eohle ea li-valve e sebelisoa, ho kenyelletsa le li-valve tsa lebelo le phahameng tse sebelisoang lifemeng ho sireletsa li-compressor.