| 摘要 |
<p>A process for the transportation of viscous crude oils utilizes an emulsifier-containing oil-in-water emulsion having at least 10-15% water which is subsequently separated again into crude oil and water. The emulsifier is a carboxymethylated ethoxylate of the formula R-(O-CH2-CH2)n-O-CH2-COOM wherein R is a linear or branched aliphatic residue of 6-20 carbon atoms, or an alkyl- or dialkylaromatic residue of 5-16 carbon atoms per alkyl group, n is 1-40 and M is an alkali or alkaline earth metal ion, or ammonium.</p> |
