Ndị na-emepụta ihe ọkụkụ nke China Cryogenic LNG dị elu - 67 ~ 134 TPD skid na-ebunye otu gas liquefaction eke - Rongteng

Nyochaa sistemụ

The nri eke eke gas na-abanye eke gas pretreatment usoro mgbe filtration, nkewa, nrụgide ụkpụrụ na metering. Mgbe CO₂, Hg na H₂O na-ewepụ, ọ na-abanye na liquefaction oyi igbe, nke na-mma, liquefied na nitrogen wepụrụ na efere fin okpomọkụ Exchanger, wee laghachi na oyi igbe na-anọgide na jụrụ, undercooling, throttling na-egbu maramara na flash tank. Usoro mmiri dị iche iche na-abanye na tank nchekwa LNG dị ka ngwaahịa LNG.

Isi usoro na ụzọ teknụzụ nke unit bụ:

Jiri MDEA wepụ carbon dioxide;

A na-eji sieve molecular wepụ mmiri mmiri;

Mwepụ nke mercury site na sọlfọ na-arụ ọrụ carbon;

Jiri ihe nzacha ihe nzacha nkenke wee yochaa sieve molecular na uzuzu carbon arụ ọrụ

Mwepụ nitrogen site na nkwụsị okpomọkụ dị ala;

A na-anabata usoro nju oyi nke MRC (ngwakọta refrigerant) iji mee ka ikuku ikuku niile dị ọcha.

Usoro usoro gụnyere:

Mita na nkewa nke raw gas;

Usoro ọgwụgwọ (gụnyere decarburization, mwepụ mercury, akpịrị ịkpọ nkụ na iwepụ uzuzu);

MR proportioning usoro na MR mkpakọ mgbasa usoro;

LNG usoro mmiri mmiri;

Sistemụ nchekwa na ntinye LNG.

Sistemụ mgbake bog

Nri gas filtration nkewa na nrụgide na-achịkwa unit

The nri eke gas si upstream aga site pipeline na a mgbali nke 5.0 ~ 6.0MpaG abanye nri gas inlet filter separator mgbe nrụgide na-achịkwa, na-abanye na ala usoro mgbe nkewa na metering.

Akụrụngwa bụ isi bụ nri gas filter separator, flowmeter, onye na-ahụ maka nrụgide, wdg.

2) Mepụta parameters

Ike nhazi: 20×10⁴Nm³/ ụbọchị

Oke mgbanwe: 50% ~ 110%

Usoro ọgwụgwọ mbụ

Ngalaba deacidification nri gas

1) Nkọwa usoro

Ihe oriri gas sitere na elu na-abanye na ngalaba gas deacidification, nke na-eji ngwọta MDEA wepụ gas acid dị ka CO.₂na H₂S na nri gas.

Gas na-esi n'okike na-abanye n'akụkụ ala nke onye na-agbapụta ihe (ụlọ elu na-ekpo ọkụ) ma na-agafe ihe na-ekpuchi ya site na ala ruo n'elu; Ngwọta MDEA a na-emezigharị nke ọma (ihe ngwọta dabere) na-esi n'akụkụ elu nke onye na-ekpuchi ihe na-agafe ma na-agafe n'elu na ala. A na-akpọtụrụ ihe ngwọta MDEA na-atụgharị na gas na-ekpo ọkụ na ihe ntinye, CO₂na gas na-etinye uche ma na-abanye na mmiri mmiri mmiri, na ihe ndị na-adịghị ahụkebe na-esi n'elu nke ihe mkpuchi ahụ pụta ma banye na decarbonization gas cooler na separator. The gas si decarbonization gas separator abanye na ndepụta gas mercury mwepụ unit, na condensate na-aga na flash tank.

Ihe omuma nke CO₂na mesoo eke gas bụ ihe na-erughị 50ppmv.

Ọnụ ego nke MDEA Solution absorbing Co., Ltd₂a na-akpọ ngwọta bara ọgaranya, nke a na-ezigara na ụlọ elu ọkụ, na gas na-egbuke egbuke nke ịda mbà n'obi na-ezigara na usoro mmanụ ọkụ. Mgbe mgbanwe okpomọkụ dị n'etiti mmiri ọkụ bara ụba na ihe ngwọta (mmiri mmiri na-adabere na ya) na-esi na ala nke ụlọ elu na-emegharị ahụ, bulie okpomọkụ ruo ~ 98 ℃ ruo n'akụkụ elu nke ụlọ elu ahụ, ma na-eme ihe na-ekpo ọkụ n'ime ụlọ elu na-emegharị ahụ ruo mgbe ogo dị ala nke mmiri mmiri na-adabere na index.

Mmiri mmiri na-adịghị ahụkebe sitere na ụlọ elu nrụpụta ọhụrụ na-agafe n'ime igwe na-ekpo ọkụ na-ekpo ọkụ na nke dara ogbenye na ngwa nju oyi. A na-eme ka mmiri dị nro dị jụụ ruo ~ 40 ℃, na-agbanye ya site na mgbapụta mmiri mmiri na-adabere na ya wee banye n'akụkụ elu nke ụlọ elu absorption.

Mmiri na-emepụta ihe na n'elu ụlọ elu regeneration na-abanye na acid gas separator site na onye na-ekpo ọkụ acid gas, gas sitere na gas gas separator na-ezigara na usoro ikuku gas gas, na condensate na-ezigara na flash separator mgbe a na-agbanye ya site na mgbapụta mgbake.

A na-ekpo ọkụ na-ekpo ọkụ nke reboiler nke ụlọ elu regeneration site na mmanụ na-ebufe ọkụ.

Akụrụngwa akụrụngwa nke ngalaba a bụ ụlọ elu absorption na ụlọ nrụpụta ọhụrụ.