Colloidal nature of vacuum residue
Vacuum residues from Duri, Alaska North Slope, Ratawi, Oriente and Merey crude oils are observed to be colloidal dispersions of the asphaltenes (heptane insolubles) in the other molecules that make up the vacuum residue. It is suggested that molecules in the heptane-insoluble portion self-associate,...
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| Veröffentlicht in: | Fuel (Guildford) 1991-06, Vol.70 (6), p.779-782 |
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| container_title | Fuel (Guildford) |
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| creator | Storm, David A. Barresi, Ronald J. DeCanio, Stephen J. |
| description | Vacuum residues from Duri, Alaska North Slope, Ratawi, Oriente and Merey crude oils are observed to be colloidal dispersions of the asphaltenes (heptane insolubles) in the other molecules that make up the vacuum residue. It is suggested that molecules in the heptane-insoluble portion self-associate, and form solid-like particles that can be distinguished from the other molecules in vacuum residue by rheological measurements. Intrinsic viscosities are measured for these colloidal particles (7–9 at 93 °C). The differences in intrinsic viscosities for the various asphaltenes are small in spite of significant differences in their heteroatom content. This suggests that the heteroatoms are buried inside the colloidal particles, and therefore have only a small influence on the hydrodynamic disturbance caused by the particles in the suspending fluid. |
| doi_str_mv | 10.1016/0016-2361(91)90078-O |
| format | Article |
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It is suggested that molecules in the heptane-insoluble portion self-associate, and form solid-like particles that can be distinguished from the other molecules in vacuum residue by rheological measurements. Intrinsic viscosities are measured for these colloidal particles (7–9 at 93 °C). The differences in intrinsic viscosities for the various asphaltenes are small in spite of significant differences in their heteroatom content. This suggests that the heteroatoms are buried inside the colloidal particles, and therefore have only a small influence on the hydrodynamic disturbance caused by the particles in the suspending fluid.</description><identifier>ISSN: 0016-2361</identifier><identifier>EISSN: 1873-7153</identifier><identifier>DOI: 10.1016/0016-2361(91)90078-O</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; asphaltene ; colloidal particles ; Crude oil, natural gas and petroleum products ; Energy ; Exact sciences and technology ; Fuels ; Processing of crude oil and oils from shales and tar sands. Processes. Equipment. 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It is suggested that molecules in the heptane-insoluble portion self-associate, and form solid-like particles that can be distinguished from the other molecules in vacuum residue by rheological measurements. Intrinsic viscosities are measured for these colloidal particles (7–9 at 93 °C). The differences in intrinsic viscosities for the various asphaltenes are small in spite of significant differences in their heteroatom content. This suggests that the heteroatoms are buried inside the colloidal particles, and therefore have only a small influence on the hydrodynamic disturbance caused by the particles in the suspending fluid.</description><subject>Applied sciences</subject><subject>asphaltene</subject><subject>colloidal particles</subject><subject>Crude oil, natural gas and petroleum products</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Fuels</subject><subject>Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units</subject><subject>viscosity</subject><issn>0016-2361</issn><issn>1873-7153</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1991</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LxDAQxYMouK5-Aw9FUPRQTZpN07kIUvwHC3vRc4jJBCLZZk3aBb-9LbvoTRhmLr_3Zt4Qcs7oLaOsvqNjKytes2tgN0CpbMrVAZmxRvJSMsEPyewXOSYnOX_SCRKLGbloYwjRWx2KTvdDwiK6YqvNMKyLhNnbAU_JkdMh49l-zsn70-Nb-1IuV8-v7cOyNLwWfQkceCVAYgXopACoG-6YkbWl-sOiQQQmQBugQJ3BxnLk4z1y4YBpUdd8Tq52vpsUvwbMvVr7bDAE3WEcsqoEqwDoBC52oEkx54RObZJf6_StGFXTQ9SUVk1pFYw1ZVWrUXa599fZ6OCS7ozPf1qQDaVVM3L3Ow7HsFuPSWXjsTNofULTKxv9_4t-ABc8coc</recordid><startdate>19910601</startdate><enddate>19910601</enddate><creator>Storm, David A.</creator><creator>Barresi, Ronald J.</creator><creator>DeCanio, Stephen J.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>19910601</creationdate><title>Colloidal nature of vacuum residue</title><author>Storm, David A. ; Barresi, Ronald J. ; DeCanio, Stephen J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-93932597e29ef7599683f1c76d0abdecee9159ac9090fce8d3e336174f91a5663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1991</creationdate><topic>Applied sciences</topic><topic>asphaltene</topic><topic>colloidal particles</topic><topic>Crude oil, natural gas and petroleum products</topic><topic>Energy</topic><topic>Exact sciences and technology</topic><topic>Fuels</topic><topic>Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units</topic><topic>viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Storm, David A.</creatorcontrib><creatorcontrib>Barresi, Ronald J.</creatorcontrib><creatorcontrib>DeCanio, Stephen J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Fuel (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Storm, David A.</au><au>Barresi, Ronald J.</au><au>DeCanio, Stephen J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Colloidal nature of vacuum residue</atitle><jtitle>Fuel (Guildford)</jtitle><date>1991-06-01</date><risdate>1991</risdate><volume>70</volume><issue>6</issue><spage>779</spage><epage>782</epage><pages>779-782</pages><issn>0016-2361</issn><eissn>1873-7153</eissn><abstract>Vacuum residues from Duri, Alaska North Slope, Ratawi, Oriente and Merey crude oils are observed to be colloidal dispersions of the asphaltenes (heptane insolubles) in the other molecules that make up the vacuum residue. It is suggested that molecules in the heptane-insoluble portion self-associate, and form solid-like particles that can be distinguished from the other molecules in vacuum residue by rheological measurements. Intrinsic viscosities are measured for these colloidal particles (7–9 at 93 °C). The differences in intrinsic viscosities for the various asphaltenes are small in spite of significant differences in their heteroatom content. This suggests that the heteroatoms are buried inside the colloidal particles, and therefore have only a small influence on the hydrodynamic disturbance caused by the particles in the suspending fluid.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/0016-2361(91)90078-O</doi><tpages>4</tpages></addata></record> |
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| ispartof | Fuel (Guildford), 1991-06, Vol.70 (6), p.779-782 |
| issn | 0016-2361 1873-7153 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences asphaltene colloidal particles Crude oil, natural gas and petroleum products Energy Exact sciences and technology Fuels Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units viscosity |
| title | Colloidal nature of vacuum residue |
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