公开(公告)号：US3675671A

公开(公告)日：1972-07-11

申请号：US3675671D

申请日：1970-12-28

Applicant: TEXACO INC

Inventor： SWEENEY WILLIAM M ,  ALEXANDER DAVID LEE

IPC: C10L1/14 ,  C10L1/197 ,  F17D1/16

CPC classification number: C10L1/1973 ,  C10L1/143 ,  F17D1/16 ,  Y10T137/0391

Abstract: An improved process for the transportation of waxy crude oils through pipelines, in particular North African crudes, which comprises introducing into the pipeline a low-pour point, lowsulfur crude oil blend comprising about 70 to about 90 percent by volume of a high-pour point, low-sulfur, waxy crude, and about 30 to about 10 percent by volume of a low-wax, low-pour crude, together with an effective pour depressant amount of an oilsoluble ethylene-vinyl fatty acid ester copolymer. The pipeline flow characteristics of the blend of the crudes are distinctly superior to the high-pour point, low-sulfur, waxy crude forming the major portion of the blend or the high-pour point, waxy crude with the same pour point depressant. In another aspect, this invention relates to the composition comprising the blended crudes together with the oil-soluble copolymer and to a process for preparing such compositions.

Abstract translation: 一种用于通过管道，特别是北非原油运输蜡质原油的改进方法，其包括向管道中引入低倾点低硫原油混合物，其包含约70至约90体积％ 倾点，低硫，蜡质原油和约30至约10体积％的低蜡，低倾倒原油，以及有效的倾倒量的油溶性乙烯 - 乙烯基脂肪酸酯共聚物。 原油混合物的管道流动特性明显优于形成混合物主要部分的高倾点，低硫，蜡质原油或高倾点，具有相同倾点下降剂的蜡质原油。 另一方面，本发明涉及包含混合原油以及油溶性共聚物的组合物以及制备这种组合物的方法。