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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Zhenhao Duan</dc:contributor>
  <dc:contributor>Chen Zhu</dc:contributor>
  <dc:contributor>I.-M. Chou</dc:contributor>
  <dc:creator>Jiawen Hu</dc:creator>
  <dc:date>2007</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Evaluation of CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;sequestration in formation brine or in seawater needs highly accurate experimental data or models of pressure&amp;ndash;volume&amp;ndash;temperature-composition (&lt;/span&gt;&lt;i&gt;PVTx&lt;/i&gt;&lt;span&gt;) properties for the CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;ndash;H&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;O and CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;ndash;H&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;O&amp;ndash;NaCl systems. This paper presents a comprehensive review of the experimental&amp;nbsp;&lt;/span&gt;&lt;i&gt;PVTx&lt;/i&gt;&lt;span&gt;&amp;nbsp;properties and the thermodynamic models of these two systems. The following conclusions are drawn from the review: (1) About two-thirds of experimental data are consistent with each other, where the uncertainty in liquid volumes is within 0.5%, and that in gas volumes within 2%. However, this accuracy is not sufficient for assessing CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;sequestration. Among the data sets for liquids, only a few are available for accurate modeling of CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;sequestration. These data have an error of about 0.1% on average, roughly covering from 273 to 642&amp;nbsp;K and from 1 to 35&amp;nbsp;MPa; (2) There is a shortage of volumetric data of saturated vapor phase. (3) There are only a few data sets for the ternary liquids, and they are inconsistent with each other, where only a couple of data sets can be used to test a predictive density model for CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;sequestration; (4) Although there are a few models with accuracy close to that of experiments, none of them is accurate enough for CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;sequestration modeling, which normally needs an accuracy of density better than 0.1%. Some calculations are made available on&amp;nbsp;&lt;/span&gt;&lt;span id="" class="interref" data-locatortype="url" data-locatorkey="http://www.geochem-model.org"&gt;&lt;a class="cExLink" href="http://www.geochem-model.org/" target="externObjLink" data-url="/science/RedirectURL?_method=externObjLink&amp;amp;_locator=url&amp;amp;_cdi=271727&amp;amp;_issn=00092541&amp;amp;_origin=article&amp;amp;_zone=art_page&amp;amp;_targetURL=http%253A%252F%252Fwww.geochem-model.org" data-itrprs="Y"&gt;www.geochem-model.org&lt;/a&gt;&lt;/span&gt;&lt;span&gt;.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/j.chemgeo.2006.11.011</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>PVTx properties of the CO&lt;sub&gt;2&lt;/sub&gt;-H&lt;sub&gt;2&lt;/sub&gt;O and CO&lt;sub&gt;2&lt;/sub&gt;-H&lt;sub&gt;2&lt;/sub&gt;O-NaCl systems below 647 K: assessment of experimental data and thermodynamic models</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>