Thepa ea fisik'hemik'hale ea MDEA le molao-motheo oa ho tlosa khasebakeng sa khase ea tlhaho
MDEA, lebitso la saense N -methyldiethanolamine, ke mokelikeli o se nang 'mala kapa o mosehla hanyane o nang le viscous.
Foromo ea limolek'hule: CH3N(CH2CH2OH)2,
Boemo ba ho belisa: 246~249 ℃ /760mmhg; matla a khoheli a itseng: 1.0425g/ml (20 ℃);
Sebaka sa ho hoama: -21 ℃ (bohloeki ba 99%); viscosity: 101Cp (20 ℃);
E ka kopanngoa habonolo le metsi, ethanol, ether, jj.; alkaline e fokolang ka metsing; karabelo ea lik'hemik'hale e tla etsahala ka har'a asiti ea carbon dioxide le khase ea hydrogen sulfide, 'me khatellong e phahameng, khase ea carbon dioxide le khase ea hydrogen sulfide li phahame. Kahoo ts'ebetso eohle ea ho monya ke ts'ebetso ea 'mele le ea lik'hemik'hale.
Mokelikeli o ruileng oa MDEA ka mor'a ho monya hydrogen sulfide le carbon dioxide o kena ka tankeng ea flash bakeng sa mouoane oa flash ea vacuum, ebe o romeloa toreng ea tsosoloso. Mokelikeli o ruileng oa futhumatsoa le ho bola botlaaseng ba tora ho lokolla carbon dioxide ka botlalo le hydrogen sulfide. Ka nako e ts'oanang, khase e botlaaseng ba tora ea nyoloha ho etsa phello ea bobeli ea ho hlobola mokelikeli o ruileng botlaaseng ba tora.; kahoo ts'ebetso eohle ea tsosoloso le eona ke ts'ebetso ea tsosoloso ea 'mele le ea lik'hemik'hale. Karabelo e ikhethileng ea lik'hemik'hale ke e latelang:
R2R'N + H2S R2R'NH +HS (karabelo ea hang-hang)
R2R'N+CO2+ H2O R2R'NH +HCO3 (karabelo e liehang)
Ho monya le ho tsosolosamolao-motheo oa ho tlosa khasebakeng sa khase ea tlhaho
Kamora hore khase ea phepelo e kene moeling oa betri, litšila le marotholi a khase a tlosoa ke sehahi sa sefe, 'me se kena toreng ea ho monya ho tloha tlase. Ka toreng, se kopana le tharollo ea MDEA e fafalitsoeng ho tloha holimo. Tharollo ea metsi ea MDEA (tharollo ea amine lean) e monya hydrogen sulfide le carbon dioxide khaseng ea tlhaho, e le hore hydrogen sulfide le carbon dioxide khaseng ea phepelo li tlosoe ho fihlela litlhoko tsa tekheniki tsa mong'a eona. Khase e hloekisitsoeng e romelloa ka ntle ho moeli ka sehahi sa khase ea sehlahisoa kamora ho tloha holimo ho tora ea ho monya.
Tlas'a taolo ea valve e laolang boemo ba mokelikeli, boemo ba mokelikeli bo ka tlase ho tora ea ho monya bo fetisetsa amine e ruileng ho ea tanka ea flash. Amine e ruileng e tsoang tlase ho tora ea ho monya e kena ka tanka ea flash. Bongata ba li-hydrocarbon tse monyelitsoeng ka har'a amine e ruileng li tlosoa ho ea mohatong oa khase ea flash. Tlas'a taolo ea valve e laolang khatello, mouoane oa flash o khutlisetsoa tsamaisong ea khase ea mafura. Mokelikeli o ruileng oa amine o romeloa ho exchanger ea mocheso oa amine e se nang mafura/e ruileng. Amine e chesang e se nang mafura e tsoang tora ea ho nchafatsa e futhumatsa amine e ruileng ho tsoa tanka ea flash, ebe amine e ruileng e kena tora ea ho nchafatsa amine.
Mouoane o hlahisoang ke reboiler e ka tlase ho tora ea tsosoloso ea amine o kopana le tharollo e ruileng ea amine e khahlanong le motlakase, o tlosa khase ea asiti ho eona, kahoo o phethela tsosoloso ea amine e ruileng. Tlas'a taolo ea valve e laolang boemo ba mokelikeli e ka tlase ho tora ea tsosoloso ea amine, tharollo ea amine e chesang e tšesaane e tšolohela ho exchanger ea mocheso ea amine e tšesaane/e ruileng. Pompo ea booster ea amine e tšesaane e hatella amine e ka tankeng ea buffer ea amine ka 1.0mpa ebe e e romela tora ea ho monya. Valve e laolang phallo e kentsoe holim'a phaephe ea amine e tšesaane ho ea tora ea ho monya, eo ka eona amine e tšesaane e kenang tora ea ho monya e laoloang.
