Gas eke a na-ewepụta nwere ụfọdụ gas acidic CO2, nke nwere ike ibute nsogbu dịka mbelata uru calorific na mmebi pipeline. Ya mere, a chọrọ ọgwụgwọ decarbonization tupu ebuga na ojiji nke pipeline.
Dịka usoro uru calorific gas sitere n'okike si dị na ọkọlọtọ mba (GB/T 11062-2014), enwere ike ịgbakọ na 10mol% CO2 ga-akpata mbelata nke ihe dị ka 9.80% na uru calorific methane kwa mita cubic. Mgbe CO2 na uzuoku mmiri na-adịkọ ma nwee nrụgide akụkụ karịrị 207kPa, ọ ga-akpata nnukwu nchara na akụrụngwa na paịpụ, a ga-emekwa ihe ndị ọzọ na-egbochi corrosion. Ya mere, gas sitere n'okike ga-ewepụ CO2 nke ọma tupu ebuga ya na paịpụ azụmahịa.
A na-eji usoro MDEA eme ihe iji wepụ CO2 na gas sitere n'okike.
Njirimara Physicochemical nke MDEA na ụkpụrụ decarburization
MDEA, aha sayensị bụ N -methyldiethanolamine, bụ mmiri mmiri na-enweghị agba ma ọ bụ odo odo ntakịrị.
Usoro molekụla: CH3N(CH2CH2OH)2,
Ebe esi mmiri: 246~249 ℃ /760mmhg; ike ndọda kpọmkwem: 1.0425g/ml (20 ℃);
Ebe oyi: -21 ℃ (ịdị ọcha 99%); viscosity: 101Cp (20 ℃);
Enwere ike iji mmiri, ethanol, ether, wdg gwakọta ya ngwa ngwa; alkaline na-adịghị ike n'ime mmiri; mmeghachi omume kemịkalụ ga-eme na acid carbon dioxide na hydrogen sulfide gas, na n'ọnọdụ nrụgide dị elu, carbon dioxide na hydrogen sulfide gas nwere elu. Yabụ usoro nnabata niile bụ usoro nnabata anụ ahụ na kemịkalụ.
Mmiri mmiri bara ụba nke MDEA mgbe ọ mịchara hydrogen sulfide na carbon dioxide, ọ na-abanye na tankị flash maka ikuku ọkụ, wee ziga ya na ụlọ elu mmeghari ohuru. A na-ekpo ọkụ ma gbazee mmiri bara ụba ahụ n'ala ụlọ elu ahụ iji wepụta carbon dioxide na hydrogen sulfide kpamkpam. N'otu oge ahụ, gas dị na ala ụlọ elu ahụ na-ebili iji mepụta mmetụta mwepụ nke abụọ na mmiri bara ụba dị n'elu ụlọ elu ahụ; yabụ usoro mmeghari ohuru niile bụkwa usoro mmeghari ohuru anụ ahụ na nke kemịkalụ. Mmeghachi omume kemịkalụ kpọmkwem bụ dịka ndị a:
R2R'N + H2S R2R'NH + HS (mmeghachi omume ozugbo)
R2R'N+CO2+ H2O R2R'NH +HCO3 (mmeghachi omume nwayọ)
Hengzhong bụ ọkachamara n'ịgwọ isi olulu gas, nhicha gas eke, mgbake LPG, Osisi LNG na ihe na-emepụta gas eke set.
Kpọtụrụ:
Sichuan Hengzhong Automation Equipment Co., Ltd.
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Weebụsaịtị: www.rtgastreat.com Email: info@rtgastreat.com
Adreesị: Nkebi nke 8, Nkebi nke 2 nke Ụzọ Tengfei, Mpaghara Shigao, Mpaghara Ọhụrụ Tianfu, obodo Meishan, Sichuan China 620564
Oge ozi: Disemba-03-2023