13 ~ 67 TPD Skid mai hawa LNG shuka skid

Liquefaction na iskar gas, wanda a takaice ake kira LNG, yana tattara iskar gas zuwa ruwa ta hanyar sanyaya iskar gas ɗin a ƙarƙashin matsi na al'ada zuwa -162 ℃. Ruwan iskar iskar gas na iya adana sararin ajiya da sufuri, kuma yana da fa'idodi na babban darajar calorific, babban aiki, mai dacewa da daidaiton ka'idojin ɗaukar kaya na birni, mai dacewa da kariyar muhalli, rage gurɓataccen birni da sauransu.

Tsarin tsari ya haɗa da: ciyarwar iskar gas mai daidaitawa da na'ura mai aunawa,naúrar tsarkake iskar gasda na'ura mai ba da iskar gas, tsarin ajiya mai sanyi, tsarin matsawa na refrigerant, ajiyar LNG da na'ura mai kaya.

Iskar iskar gas da ke shiga tashar ta farko ta wuce ta hanyar sarrafa matsa lamba da na'ura mai aunawa, wanda ke gane ka'idojin matsa lamba da ma'aunin iskar gas mai shigowa; Gas ɗin yana shiga sashin tsabtace iskar gas, inda iskar gas ɗin ke ƙarƙashin cirewar CO2, cirewar H2S da jiyya na bushewa. Ana ba da shawarar tsarin MDEA don lalatawa da cirewar H2S, tsarin cire ruwa na kwayoyin halitta tare da hasumiya uku KO TEG tsarin bushewa ana ba da shawarar don bushewa; Kuma ana ba da shawarar yin amfani da BOG da aka gano da kuma matsawa don sabunta iskar gas;

Tsaftataccen iskar gas a cikin sashin sarrafa iskar gas, gauraye refrigerant (Tsarin liquefaction MRC) ana ba da shawarar don ruwan iskar gas; LNG mai liquefied ana adana shi a cikin tankin ajiya, kuma ana ba da shawarar yanayin yanayi da tsarin ajiya mai ƙarancin zafi don ajiyar LNG. Ɗaya daga cikin tankin ajiya mai ƙarancin yanayi yana sanye da compressor BG, kuma ana amfani da kwampreso na BOG don matsawa BOG kafin shigar da busarwar kwayoyin halitta Regeneration, dangane da famfon cryogenic don cimma shigarwa.

Liquefied Natural gas (LNG) iskar gas ne, galibi methane, wanda aka sanyaya shi zuwa nau'in ruwa don sauƙi da amincin ajiya da sufuri. Yana ɗaukar kusan 1/600th ƙarar iskar gas a cikin yanayin gaseous.

Muna samar da Tsirrai na Ruwan Gas a cikin ƙaramin (mini) da ƙaramin sikelin. Ƙarfin tsire-tsire ya rufe daga 13 zuwa fiye da 200 Ton / rana na samar da LNG (18,000 zuwa 300,000 Nm).³/d).

Cikakken injin liquefaction na LNG ya haɗa da tsarin uku: tsarin tsari, tsarin sarrafa kayan aiki da tsarin amfani. Dangane da hanyoyin iska daban-daban, ana iya canza shi.

Dangane da ainihin halin da ake ciki na tushen iskar gas, muna ɗaukar tsari mafi kyau da kuma tsarin tattalin arziki don saduwa da bukatun abokan ciniki daban-daban. Kayan aikin skid da aka ɗora yana sa sufuri da shigarwa ya fi dacewa.

1. Tsarin tsari

Ana matsar da iskar gas ɗin abinci bayan tacewa, rabuwa, ƙa'idodin matsa lamba da ƙididdigewa, sa'an nan kuma shiga tsarin pretreatment na iskar gas. Bayan cire CO₂, H₂S, Hg, H₂ O da manyan hydrocarbons, yana shiga cikin akwati mai sanyi. Sa'an nan kuma a sanyaya a cikin farantin fin zafi Exchanger, denitrified bayan liquefaction, na gaba subcooled, throttled da flashed zuwa flash tank, da kuma na karshe, da rabuwa ruwa lokaci shiga cikin LNG tank tank matsayin LNG kayayyakin.

Taswirar kwararar skid mai hawa LNG Plant kamar haka:

Tsarin tsari na Cryogenic Plant LNG ya haɗa da:

• ● Feed gas tacewa, rabuwa, matsa lamba ka'idar da metering naúrar;

• ● Ciyar da matsi na iskar gas

• ● Sashin magani (ciki har dadeacidification,rashin ruwada kuma kawar da ruwa mai nauyi, mercury da kura;

• ● MR proportioning unit da MR compression cycle unit;

• ● LNG naúrar liquefaction (ciki har da sashin denitrification);

1.1 Fasalolin tsarin tsari

1.1.1 Ciyar da iskar gas pretreatment

Hanyar hanyar ciyar da iskar iskar gas tana da halaye masu zuwa:

• ●Deacidification tare da maganin MDEAyana da fa'ida na ƙananan kumfa, ƙarancin lalacewa da ƙarancin amine.

• ●Kwayoyin sieve adsorptionana amfani da shi don bushewa mai zurfi, kuma har yanzu yana da fa'ida mai yawa ko da a ƙarƙashin ƙarancin ƙarancin tururi na ruwa.

• ● Yin amfani da sulfur-impregnated carbon kunnawa don cire mercury yana da arha a farashi. Mercury yana amsawa tare da sulfur akan sulfur mai kunna carbon da aka kunna don samar da mercury sulfide, wanda aka tallata akan carbon da aka kunna don cimma manufar kawar da mercury.

• ● Madaidaicin abubuwan tacewa na iya tace gwangwadon kwayoyin halitta da kunna ƙurar carbon da ke ƙasa da 5μm.

1.1.2 Liquefaction da refrigeration naúrar

Hanyar da aka zaɓa na shayarwa da naúrar refrigeration shine MRC (mixed refrigerant) refrigeration sake zagayowar, wanda shine ƙarancin kuzari. Wannan hanya tana da mafi ƙarancin amfani da makamashi a cikin hanyoyin da ake amfani da su na firji, wanda ke sa farashin samfur ya zama gasa a kasuwa. Naúrar daidaita firij ɗin tana da ɗan ƙwaƙƙwaran mai zaman kanta daga naúrar matsawa mai yawo. A lokacin aiki, naúrar daidaitawa tana sake cika refrigerant zuwa naúrar matsawa, yana riƙe da ingantaccen yanayin aiki na sashin matsawa mai kewayawa; Bayan an rufe naúrar, naúrar da ake daidaitawa zata iya adana firijin daga ɓangaren matsa lamba na naúrar matsawa ba tare da fitar da na'urar ba. Wannan ba zai iya ajiye firji kawai ba, har ma yana rage lokacin farawa na gaba.

Duk bawuloli a cikin akwatin sanyi suna waldasu, kuma babu haɗin flange a cikin akwatin sanyi don rage yuwuwar ɗigogi a cikin akwatin sanyi.

1.2 Babban kayan aiki na kowane Raka'a

2. Tsarin sarrafa kayan aiki

Don sa ido sosai kan tsarin samar da cikakken tsarin kayan aiki, da kuma tabbatar da ingantaccen aiki da aiki mai dacewa da kiyayewa, tsarin sarrafa kayan aikin ya ƙunshi:

Tsarin sarrafawa Rarraba (DCS)

Tsarin Kayan Aiki (SIS)

Ƙararrawar Wuta da Tsarin Gano Gas (FGS)

Gidan Talabijin na Rufe (CCTV)

Tsarin nazari

Kuma kayan aiki masu inganci (flowmeter, analyzer, thermometer, matsa lamba gage) waɗanda suka dace da buƙatun tsari. Wannan tsarin yana ba da cikakkiyar tsari, ƙaddamarwa da ayyuka na saka idanu, gami da sayan bayanan tsari, rufaffiyar madauki, matsayi na saka idanu na kayan aiki, haɗawar ƙararrawa da sabis, sarrafa bayanai na ainihin lokaci da nuni, sabis na haɓakawa, nunin hoto, sabis ɗin rahoton rikodin aiki da sauran ayyuka. Lokacin da akwai gaggawa a cikin sashin samarwa ko tsarin FGS ya aika da siginar ƙararrawa, SIS ta aika da siginar kulle-kullen kariya don kare kayan aikin da ke wurin, kuma tsarin FGS yana sanar da ma'aikatan kashe gobara na gida a lokaci guda.

3. Tsarin amfani

Wannan tsarin ya ƙunshi: naúrar iska na kayan aiki, naúrar nitrogen, rukunin mai na canja wurin zafi, rukunin ruwa da aka ƙera da sashin ruwa mai sanyaya.