| 摘要 |
<p>The object of the invention is a process for the transportation of heavy oil whereby an oil-in-water emulsion containing an emulsifier, with at least 10-15% of water is transported and subsequently separated again into crude oil and water. The emulsifier employed is a carboxymethylated oxalkylate of the formula R-(OCH2-CH2)n-oCH2COOM and ether sulfate of the formula R'-(OCH2-CH2)m-SO3M' in which R and also R' mean a saturated or unsaturated linear or branched aliphatic radical with 8 to 20 carbon atoms, an alkyl aromatic radical with 4 to 16 carbon atoms, an alkyl aromatic radical with 4 to 16 carbon atoms or a di- or tri-alkyl aromatic radical with a total of 5 to 20 and 7 to 24 carbon atoms respectively in the alkyl groups, m means 1 to 40, n means 1 to 40 and M and M' mean an alkali or alkaline-earth metal ion or ammonium.</p> |
