<body><script type="text/javascript"> function setAttributeOnload(object, attribute, val) { if(window.addEventListener) { window.addEventListener('load', function(){ object[attribute] = val; }, false); } else { window.attachEvent('onload', function(){ object[attribute] = val; }); } } </script> <div id="navbar-iframe-container"></div> <script type="text/javascript" src="https://apis.google.com/js/platform.js"></script> <script type="text/javascript"> gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() { if (gapi.iframes && gapi.iframes.getContext) { gapi.iframes.getContext().openChild({ url: 'https://www.blogger.com/navbar.g?targetBlogID\x3d8968604820003269863\x26blogName\x3dChemical+%26+Process+Technology\x26publishMode\x3dPUBLISH_MODE_BLOGSPOT\x26navbarType\x3dBLUE\x26layoutType\x3dCLASSIC\x26searchRoot\x3dhttps://webwormcpt.blogspot.com/search\x26blogLocale\x3den\x26v\x3d2\x26homepageUrl\x3dhttp://webwormcpt.blogspot.com/\x26vt\x3d6505904876529004088', where: document.getElementById("navbar-iframe-container"), id: "navbar-iframe", messageHandlersFilter: gapi.iframes.CROSS_ORIGIN_IFRAMES_FILTER, messageHandlers: { 'blogger-ping': function() {} } }); } }); </script>

Chemical Process Technology

Continue to learn tips, knowledge and experience about Chemical Process Technology...

Enter your email address:


CLOSE WINDOW


 

Chemical & Process Technology

A place to share knowledge, lesson learnt...

Tuesday, May 4, 2010

Methyldiethanolamine (MDEA), and Diethanolamine (DEA) have been used for CO2 & H2S removal in Gas sweetening unit. DEA is non-selective to CO2 and H2S. However, irreversible reactions of DEA with CO forming corrosive degradation products & increase corrosiveness. MDEA is highly selective to H2S with low corrosiveness. What is performance of mixtures of DEA and MDEA solutions in CO2 and H2S removal ?






In the present paper, the use of amine mixtures employing methyldiethanolamine (MDEA), and diethanolamine (DEA) have been investigated for a variety of cases using a ASPEN HYSYS process simulation. The simulation results show that, 
  • 40%MDEA with 10% DEA, 30% MDEA with 10 % DEA and 40% MDEA with 5% DEA were the best result in the absorption processes of CO2 from the natural gas.
  • 30%MDEA with 10% DEA, 40%MDEA with 5 % DEA and 40%MDEA with 10 % DEA were the best result in the absorption processes of H2S from the natural gas comparing with other mixing amines.
  • 20% MDEA with 10% DEA, 30% MDEA with 10 % DEA and the 40% MDEA with 10 % DEA have the lowers amount of H2S in the sweet gas comparing with different percent of DEA without mixing.
  • The temperature of rich amine decrease with increase the circulation rate in all different percent of mixing amines and different percent of MDEA without mixing.
  • The reboiler temperature was constant in the 20% MDEA with 10 % DEA and in the 30%MDEA, 40%MDEA and in the 50%MDEA, otherwise the reboiler temperature increase with increase the circulation rate in all different percent of mixing amines.
Download

Related Topics

Labels: , ,

posted by Webworm, 9:46 AM

0 Comments:

Post a Comment

Let us know your opinion !!! You can use some HTML tags, such as  <b>, <i>, <a>

Subscribe to Post Comments [Atom]

Home:

<< Home