Zaɓin tsarin shaye-shayen iskar gas na halitta don masana'antar LNG
Zuwa yanzu, akwai manyan hanyoyin samar da ruwa guda uku a fannin samar da iskar gas: tsarin zagayowar sanyaya iskar gas, tsarin zagayowar sanyaya iskar gas mai hade da kuma tsarin zagayowar sanyaya iskar gas mai fadadawa.
A) Tsarin zagayowar sanyaya cascade
Zagayen sanyaya iskar gas mai matakai uku ne na sake sanyaya iskar gas, wanda ke da matakai uku na sake sanyaya iskar gas kamar propane (ko propylene), ethane (ko ethylene), methane (ko nitrogen) (zafin da ke tururi shine - 100 °F, - 121 °F, - 256 °F, bi da bi). Sayar da iskar gas mai matakai yana bawa iskar gas damar musanya zafi da masu sanyaya iskar gas masu dacewa a cikin matakan zafi da yawa, ta haka yana sanyaya ta kuma yana fitar da ruwa.
B) Tsarin zagayowar sanyaya gauraye
The zagayen sanyaya firiji mai gauraye tsari ne wanda ke amfani da cakuda N 2 da kuma C 1 zuwa C 5 hydrocarbons a matsayin mai zagayawa a cikin firiji.
C) Tsarin zagayowar sanyaya faɗaɗa
Zagayen sanyaya na fadada yana nufin sanyayawar zagayen Crowder inda mai sanyaya mai matsin lamba ke faɗaɗa ta hanyar amfani da na'urar faɗaɗa turbo don cimma ruwa mai yawa na iskar gas. Yayin da iskar ke faɗaɗawa kuma tana sanyaya a cikin na'urar faɗaɗawa, yana iya fitar da aiki, wanda za a iya amfani da shi don tuƙa damfara a cikin aikin.
Dangane da na'urorin sanyaya iska daban-daban, za a iya raba zagayowar sanyaya iska zuwa: zagayowar sanyaya iskar nitrogen, zagayowar sanyaya iskar nitrogen-methane, zagayowar sanyaya iskar gas ta halitta.
D) Kwatanta hanyoyin fasaha da tattalin arziki na matakai uku
An saita yawan amfani da makamashin zagayowar sanyaya cascade a matsayin 1, an lissafa kwatancen zagayowar sanyaya daban-daban a cikin Tebur 5.1-2, kuma an kwatanta halayen zagayowar sanyaya daban-daban a cikin Tebur 5.1-3.
Tebur 5.1-2 Kwatanta Ingancin Zagaye-zagayen Na'urorin Sanyaya Na'urori
| Tsarin sanyaya | Amfani da Makamashi Mai Dangantaka da Sanyaya Cascade |
| zagayen sanyi na cascade | 1.00 |
| zagayen sanyaya firiji mai gauraye | 1.15 |
| R22 Pre-sanyaya N 2 -CH 4 Faɗaɗa Zagayen Firji | 1.35 |
Tebur 5.1-3 Kwatanta halaye daban-daban na zagayowar sanyaya
| fihirisa | sanyaya cascade | firiji mai gauraya | Faɗaɗa firiji |
| inganci | mai girma | tsakiya | Ƙasa |
| Rikici | mai girma | tsakiya | tsakiya |
| Babban kayan aikin motsi | Matse-matse guda 3 | 1 matsewa | mai faɗaɗawa + mai damfara |
| nau'in musayar zafi | ƙarshen farantin | Finishin farantin ko bututun rauni | ƙarshen farantin |
| yankin musayar zafi | babba | babba | Ƙarami |
| daidaitawa | mai girma | tsakiya | tsakiya |
| tushen firiji | Ana buƙatar firiji guda 3 | Ana buƙatar na'urorin sanyaya 3 zuwa 6, kuma ana iya fitar da na'urar sanyaya ƙwai kai tsaye daga iskar gas ɗin da aka samar. | Ana buƙatar na'urar sanyaya iska guda ɗaya kawai: Nitrogen, wanda za'a iya fitar da shi daga iska. |
| zuba jari | mai girma | tsakiya | Matsakaici mai tsayi |
Dangane da auna abubuwa kamar saka hannun jari, amfani da makamashi da aiki da kulawa, tsarin shaye-shayen wannan na'urar ya rungumi tsarin sanyaya firiji mai hade.
Rongteng ya ƙware a fannin kula da rijiyoyin iskar gas, tsarkake iskar gas, dawo da LPG, shukar LNG da kuma na halitta saitin janareta mai iskar gas.
Tuntuɓi:
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