Te Kounga Nui o Haina LNG Plant Factory - 0.7~3.5 MMSCFD Kaihoko i te tauine iti LNG tukanga tipu LNG tipu liquefaction ranei - Rongteng

Te whakataurite me te kowhiringa o te hangarau tukanga

Ko te tukanga o te hau maori liquefaction ngā pretreatment (pure) o te hau mata, liquefaction (LNG liquefaction tipu ranei), refrigerant tohanga kōpeketanga, rokiroki hua, utanga me te pūnaha pŭpŭ tauturu, me ētahi atu te tukanga matua ngā purenga o te hau mata me te liquefaction o hau para.

Te kowhiringa o te tukanga purenga hau maori

Ka rite ki te hau mata, me tino purea te hau maori i mua i te liquefaction.Ko te tango i te hau waikawa, te wai me nga poke i roto i te hau whangai, penei i te H2S, CO2, H2O, Hg me te hauwai kakara, kia kore ai e aukati me te pirau o nga taputapu me nga pipeline na te mīti i te iti te pāmahana. Ripanga 5.1-1 ka whakarārangihia nga paerewa kai o mua o te hau. tipu.

Te nuinga o nga mea poke o te hau whangai LNG

E ai ki nga raraunga o te hau whangai, ko te ihirangi wai i roto i te hau whangai ka nui ake i te paerewa me te purea.

A) Te kowhiringa o te tukanga whakamaaramatanga

Ko te H2S me te CO2 kei roto i te hau maori e kiia ana ko te hau waikawa. Ko to ratau oranga ka pakaru te whakarewa me te whakapoke i te taiao.I tua atu, mehemea he nui rawa te ihirangi CO2, ka iti te uara calorific o te hau o te taiao.

He tikanga whakauru wairewa, tikanga whakauru tinana, tikanga whakangao-whakaheke me te tikanga molecular sieve adsorption mo te tango i te hau waikawa mai i te hau maori.I tenei wa, ko te tikanga whakangao whakarewa kei te tino mohiotia me te whakamahia whanui. Ka tauhohe te whakarewa ki nga waahanga waikawa (te nuinga o te CO2) i roto i te hau whangai ki te hanga pūhui. Ka taea e te wai nui o te hau waikawa te mimiti me te tuku i te hau waikawa i raro i te ahua o te whakanui ake i te pāmahana me te whakaiti i te pehanga, kia mohio ai ki te whakahou me te whakamahi o te whakarewa.

I runga i te kohi kaha, te tauine maimoatanga, te haumi me te utu mahi, ko te tikanga wai MDEA amine te tikanga tino pai, na reira ka tohua te tikanga wai amine MDEA mo te whakaheke i tenei kaupapa.

B) Te kowhiringa o te tukanga whakamaroketanga

Ko te tikanga whakamaroke hau maaori ko te whakamaroketanga o te pāmahana iti, te whakamaroke whakamaroke totoka me te whakauru whakarewa. Ko te wehenga mīti te nuinga whakamahia ki te karo hydrate o hau māori ka he iti te pāmahana, engari he iti tona pāmahana iti whakaaetia, e kore e taea te whakatutuki i nga whakaritenga o te liquefaction hau māori; Ko te whakaurunga whakarewa te nuinga o te waa ko te waikawa kukū (te nuinga o te waikawa phosphoric me etahi atu waikawa waro), te glycol (te triethylene glycol e whakamahia ana), me etahi atu, engari he iti te hohonu o te whakamaroketanga o enei tikanga, e kore e taea te whakamahi i roto i te waahanga cryogenic; Ko nga tikanga whakamaroke whakamaroke totoka ko te tikanga silica gel, tikanga molecular sieve me te whakakotahitanga o nga tikanga e rua.

Ko te whakahekenga o te hau me te matewai me tango i te tikanga whakauru totoka. Na te mea he kaha te tatari molecular adsorption selectivity, teitei āhuatanga adsorption i raro i te iti o te wai kohu wai pehanga wāhanga, a ka taea te tango atu hau waikawa toenga i te wa ano, whakamahia 4A tatari rāpoi hei adsorbent dehydration i roto i tenei kaupapa.

C) Te kowhiringa o te mahi tango i te mercury

I tenei wa, e rua nga ahuatanga o te tango i nga mahi tangohanga: te HGSIV molecular sieve adsorption tikanga o te kamupene UOP i roto i te United States me te tauhohenga matū i waenga i te mercury me te whanariki ma te whakamahi i te whanariki impregnated activated carbon ki te whakaputa i te mercury sulfide, ka uru ki runga i te waro whakahohe. Ko te mea o mua he utu nui, he pai hoki mo te kaupapa me te nui o te mercury; he iti te utu o muri, he pai hoki mo te waa me te iti o te ihirangi mercury.

I tetahi taha, ko te utu mahi o te HGSIV molecular sieve he tino tiketike; i tetahi atu ringa, he iti noa iho te ihirangi mercury i roto i te hau whangai o tenei waahanga. Na reira, te whakamahi o te whanariki impregnated whakahohe waro tukanga tango mēkuri, he wheako angitu te kamupene.