公开(公告)号：WO2015149181A1

公开(公告)日：2015-10-08

申请号：PCT/CA2015/050265

申请日：2015-04-02

Applicant: TOTAL E&P CANADA LTD.

Inventor： MOETAMED-SHARIATI, Saba ,  KARIMI, Shahrad ,  GARNER, William Nicholas ,  SARKAR, Amitava

IPC: C10G1/04 ,  B01D17/025 ,  B03B9/02

CPC classification number: B03B9/02 ,  B01D21/0036 ,  B01D21/267 ,  B01D2221/04 ,  B03D2203/006 ,  C10G1/04

Abstract: Froth settling vessels (FSU) taught herein utilize a classifier feedwell to pre-classify a solvent diluted feedstream into a less dense bitumen and solvent overflow and a more dense water, solids and asphaltene agglomerate underflow. The overflow and underflow are discharged into the FSU at axially spaced apart locations, forming a substantially non-turbulent interface therebetween. The majority of the bitumen and solvent in the overflow rises to the top, following discharge above the interface, and the majority of the dense components fall to the bottom, following discharge below the interface. Minor amounts of less dense components in the underflow and more dense components in the overflow rise and fall substantially unimpeded through the interface. The FSU can be operated at flux rates exceeding conventional FSU as the risk of breakthrough is minimized as a result of the pre-classification and discharge to discrete locations within the FSU.

Abstract translation: 本文教导的泡沫沉降容器（FSU）利用分级器供料口将溶剂稀释的进料流预分类成不太致密的沥青和溶剂溢流以及更致密的水，固体和沥青质附聚物下溢。 溢流和下溢在轴向间隔开的位置被排放到FSU中，在它们之间形成基本上非湍流的界面。 沥青中的大部分沥青和溶剂在接口上方排放后上升到顶部，并且大多数致密组分在接口下面放电后下降到底部。 下溢中较少密度较低的组分和溢流中更致密的组分通过界面基本上无阻碍地上升和下降。 FSU可以以超过常规FSU的通量速率运行，因为预分类和排放到FSU内的离散位置的结果，突破的风险最小化。