100MMSCFD skid yochotsa mpweya wachilengedwe yokhala ndi njira yothetsera MDEA

Sichuan Hengzhong Clean Energy Equipment Co., Ltd., idabadwa mu 2012 ndipo titha kupereka mayankho ndi phukusi la zida zothandizira zida zochizira mutu wa chitsime, zida zoziziritsira mpweya wachilengedwe, phukusi lobwezeretsa sulfure, Kuchotsa LPG ndi chipangizo chobwezeretsa NGL, Chomera chothira madzi a LNG, gawo lopangira haidrojeni, phukusi lotulutsa heliamu, ma seti opanga mpweya.

Chitsulo choyeretsera mpweya chimakhala ndi machitidwe atatu: njira yoyendetsera, njira yowongolera zida ndi njira yogwiritsira ntchito. Malinga ndi magwero osiyanasiyana a mpweya, imatha kusinthidwa.

Malinga ndi momwe gasi alili, timagwiritsa ntchito njira yabwino kwambiri komanso njira yotsika mtengo kwambiri kuti tikwaniritse zosowa zosiyanasiyana za makasitomala. Zipangizo zokwezedwa ndi skid zimapangitsa kuti mayendedwe ndi kuyika zikhale zosavuta.

1. Njira yayikulu yogwiritsira ntchito yankho la MDEA kuchotsa CO2 ndi H2S:

Zachilengedwe zochokera kumtunda zimalowa mu chipangizo chochotsera asidi, chomwe chimagwiritsa ntchito njira ya MDEA kuchotsa mpweya wa asidi monga CO2\H2S kuchokera mu mpweya wosaphika.

Mpweya wachilengedwe umalowa mu absorber kuchokera pansi ndikuyenda mmwamba. Yankho la MDEA lokonzedwanso mokwanira (lopanda mphamvu) limalowa mu absorber kuchokera pamwamba ndikuyenda pansi. Mafunde otsutsana a yankho la MDEA ndi mpweya wachilengedwe amakhudza mokwanira absorber, kuyamwa CO2 ndi H2S mu mpweya ndikuzisamutsa ku gawo lamadzimadzi. Zigawo zosayamwa zimatengedwa kuchokera pamwamba pa absorber ndikulowa mu choziziritsira cha mpweya chochotsa asidi ndi cholekanitsa. Mpweya wotuluka mu cholekanitsa cha mpweya chochotsa asidi umalowa mu unit yoziziritsira mpweya wodyetsa, ndipo condensate imatumizidwa ku thanki ya flash.

TKuchuluka kwa CO2 mu mpweya wachilengedwe wokonzedwa ndi kochepera 50 PPM, ndipo kuchuluka kwa H2S ndi kochepera 4 PPM.

Yankho la MDEA lomwe limayamwa CO2 ndi H2S, lotchedwa madzi olemera, limatumizidwa ku flash tower, komwe kuthamanga kumachepa ndipo mpweya wachilengedwe womwe umatuluka umatumizidwa ku makina otulutsira mpweya. Madzi olemera omwe amayatsidwawo amasinthanitsa kutentha ndi yankho (madzi ofooka) lomwe limatuluka pansi pa nsanja yobwezeretsanso. Kenako kutentha kumakwezedwa kufika ~203 °F ndikutumizidwa kumtunda kwa nsanja yobwezeretsanso, komwe kumachotsedwa ndikubwezeretsedwa mpaka madzi ofooka atafika pamlingo womwe mukufuna.

Madzi osalimba ochokera ku nsanja yobwezeretsanso amadutsa mu chosinthira kutentha chamadzimadzi cholemera kwambiri ndi choziziritsira madzi chosalimba, chimaziziritsidwa kufika pa 113 °F, ndipo chimapanikizidwa ndi pampu yamadzimadzi osalimba asanalowe kumtunda kwa nsanja yoyamwitsa.

Mpweya wotuluka kuchokera pamwamba pa nsanja yokonzanso umadutsa mu choziziritsira mpweya wa asidi ndikulowa mu cholekanitsa mpweya wa asidi. Mpweya wotuluka mu cholekanitsa mpweya wa asidi umatumizidwa ku dongosolo lotulutsa mpweya wa asidi, ndipo condensate imabwerera ku thanki ya MDEA buffer.

Gwero la kutentha la reboiler ya nsanja yokonzanso limatenthedwa ndi mafuta otentha.

Zipangizo zazikulu zogwirira ntchito za chipangizochi ndi nsanja yoyamwitsa ndi nsanja yokonzanso.

Magawo a kapangidwe：

Kutha kugwira ntchito: 100MMSCFD

Mapangidwe a kuchuluka kwa CO2 mu mpweya wosaphika: 5% (mol %)

Kuchuluka kwa H2S mu mpweya wosaphika ndi 8ppmv

Kuthamanga kwa ntchito ya nsanja yoyamwa: 986.1psig

Kutentha kwa ntchito ya nsanja yoyamwa: 104 ℉ ~ 140 ℉

Kuthamanga kwa ntchito ya nsanja yokonzanso: 4.351psig ~ 7.252psig

Kutentha kwa ntchito ya nsanja yokonzanso: 203 ℉ ~257 ℉

Gwero la kutentha kosinthika: Kutentha kwa mafuta ofunda

Kuchuluka kwa CO2 mu mpweya wopanda asidi ≤50PPM

kuchuluka kwa mpweya mu mpweya wopanda asidi ≤4PPM

3) Kuchuluka kwa ntchito

50% ~ 110%

2. Dongosolo lowongolera zida

Pofuna kuyang'anira bwino njira yopangira zida zonse, ndikuwonetsetsa kuti zikugwira ntchito bwino komanso kuti zikhale zosavuta kugwiritsa ntchito komanso kukonza, makina owongolera zida amaphatikizapo:

Dongosolo lolamulira logawidwa (DCS)

Dongosolo la Zida Zachitetezo (SIS)

Dongosolo Lodziwira Moto ndi Gasi (FGS)

Televizioni yotsekedwa (CCTV)

Dongosolo losanthula

3. Dongosolo lamagetsi

Dongosololi limaphatikizapo makamaka: chipangizo choyezera mpweya, chipangizo cha nayitrogeni, chipangizo choyezera mafuta otenthetsera, chipangizo cha madzi osungunuka mchere ndi chipangizo choziziritsira madzi ozungulira.