Umgangatho oPhezulu waseTshayina ukususwa kwe-H2S kwimizi-mveliso yegesi yeNdalo

Inkcazo

I-Molecular sieve dehydration skid sisixhobo esiphambili sokucoca igesi yendalo okanye ukulungiswa kwegesi yendalo. I-molecular sieve yikristale ye-alkali yensimbi ye-aluminosilicate enesakhiwo sesakhelo kunye nesakhiwo esifanayo se-microporous. Xa igesi yokutya equkethe amanzi okulandelela idlula kwi-molecular sieve bed kwiqondo lokushisa, i-trace water kunye ne-mercaptan iyaxutywa, ngaloo ndlela inciphisa umthamo wamanzi kunye ne-mercaptan kwigesi yokutya, iqonda injongo yokuphelelwa ngamanzi kunye ne-desulfurization. inkqubo ye-adsorption ye-molecular sieve idla ngokuqhutyelwa kwiqondo lokushisa eliphantsi kunye noxinzelelo oluphezulu, ngelixa ukuvuselelwa kwe-desorption kuqhutyelwa kwiqondo lokushisa eliphezulu kunye noxinzelelo oluphantsi. Ngaphantsi kwesenzo sobushushu obuphezulu, igesi ecocekileyo kunye noxinzelelo oluphantsi lokuvuselela igesi, i-molecular sieve adsorbent ikhupha i-adsorbate kwi-micropore kwi-regeneration gas flow de isixa se-adsorbate kwi-adsorbent sifikelele kwinqanaba eliphantsi kakhulu, kwaye inamandla okufunxa amanzi kunye ne-mercaptan kwigesi yokutya, ukuqonda inkqubo yokuhlaziywa kwe-molecular kunye ne-recycling process.
Indlela ye-molecular sieve luhlobo lwendlela yokuphelelwa ngamanzi emzimbeni, ehlala isetyenziswa kwinkqubo yokwahlula i-condensation yobushushu obuphantsi, njenge-natural gas condensate (NGL) yokubuyisela kunye nenkqubo yokukhutshwa kwamanzi ekuveliseni i-liquefied natural gas (LNG). Ukongeza, i-molecular sieve dehydration iphinda isetyenziswe ekuveliseni igesi yendalo ecinezelweyo kumafutha emoto.

Ukukhutshwa kwe-molecular sieve dehydration ngokuqhelekileyo kusebenza kwezi zihlandlo zilandelayo:
a. Apho umbethe werhasi yendalo kufuneka ube ngaphantsi kwe -40 ℃.
b. Ilungele ulawulo lwe-hydrocarbon dew point yegesi yendalo enoxinzelelo oluphezulu.
c. Igesi yendalo iphelelwe ngamanzi kwaye ihlanjululwe ngexesha elifanayo.
d. Xa igesi yendalo equkethe i-H2S iphelelwe ngamanzi kwaye ichithwe kwi-glycol, iya kubangela ukukhutshwa kwegesi yokuvuselela.
e. Xa i-LPG kunye ne-NGL i-dehydration kufuneka isuse i-trace sulfide (H2S, CO, COS, CS2, mercaptan) ngexesha elifanayo.

Itshathi equkuqelayo

I-adsorbers yebhedi esisigxina isetyenziselwa ukuchithwa kwe-molecular sieve dehydration, ngoko ke iyunithi kufuneka ibe nee-adsorbers ezimbini, enye ikwinqanaba le-adsorption dehydration, enye ikwinqanaba lokuhlaziya kunye nokupholisa. Xa umthamo weyunithi umkhulu kakhulu, inkqubo ye-multi tower nayo inokulungiswa.
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