专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

CA2350001A1 STAGED SETTLING PROCESS FOR REMOVING WATER AND SOLIDS FROM OIL SAND EXTRACTION FROTH 未知
公开(公告)号：CA2350001A1
公开(公告)日：2002-12-11
申请号：CA2350001
申请日：2001-06-11
申请人： LORENTZ JAMES , DOUGAN PATRICK , MAYR COREY , CYMERMAN GEORGE , TRAN TAM
发明人： LORENTZ JAMES , DOUGAN PATRICK , MAYR COREY , CYMERMAN GEORGE , TRAN TAM
IPC分类号： B01D21/00 , B03B9/02 , B03B13/00 , C10G1/04
摘要： Diluent-diluted bitumen froth containing bitumen and diluent hydrocarbons, water, sand and fines (collectively "dilfroth") is fed into a gravity settler ('splitter') and temporarily retained to produce a bottom layer of tails comprising sand and middlings, a rag layer of discrete three-dimensional structures, each comprising hydrocarbons contained in a skin of fines, and a top layer of hydrocarbons containing small droplets of water and fines ('raw dilbit'). The flux in the splitter is less than 6 m3/h of dilfroth fed per m 2 of horizontal cross-sectional rag area. The in-coming dilfroth is fed directly into the splitter middlings. Demulsifier is added to the overflow stream of raw dilbit and the mixture is subjected to prolonged settling in a polisher tank, to produce polished dilbit containing less than 1.0% water and 0.3% solids. The splitter underflow tails, containing less than 15% bitumen, is mixed with diluent to raise the diluent/bitumen ratio to 4 to 10 and is gravity settled in a scrubber. Scrubber overflow, mostly diluent containing residual bitumen stripped from the tails, is recycled to the splitter. In concept, the sand i s first separated from the bitumen in the stripper. The substantially sand-free bitumen can then feasibly be treated with chemical and prolonged settling in the polisher to reduce water and fines contents to low levels. Bitumen lost in the splitter tails is recovered in the scrubber using a high concentration o f 31 diluent. The scrubber overflow of bitumen and diluent is recycled to the stripper to conserve diluent. 32

2. 发明专利

CA2350001C STAGED SETTLING PROCESS FOR REMOVING WATER AND SOLIDS FROM OIL SAND EXTRACTION FROTH 未知
公开(公告)号：CA2350001C
公开(公告)日：2007-10-30
申请号：CA2350001
申请日：2001-06-11
申请人： LORENTZ JAMES , MAYR COREY , TRAN TAM , CYMERMAN GEORGE , DOUGAN PATRICK
发明人： LORENTZ JAMES , MAYR COREY , TRAN TAM , CYMERMAN GEORGE , DOUGAN PATRICK
IPC分类号： B03B9/02 , B01D21/00 , B03B13/00 , C10G1/04
摘要： Diluent-diluted bitumen froth containing bitumen and naphtha diluent hydrocarbons, water, sand and fines, (collectively "dilfroth"), is fed into a vapor-tight gravity settler ('splitter') and temporarily retained to therein produce a bottom layer of tails comprising sand and middlings, a rag layer of discre te three-dimensional structures, each comprising hydrocarbons contained in a skin of fines, and a top layer of hydrocarbons containing small droplets of water and fines ('raw dilbit'). The flux in the splitter is less than 6 m3/h of dilfroth fed per m2 of horizontal cross-sectional rag area. The in-coming dilfroth is fed directly into the splitter middlings. Demulsifier is added t o the overflow stream of raw dilbit and the mixture is subjected to prolonged settling in a vapor-tight polisher tank, to produce polished dilbit containing less than 1.0 wt. % water and 0.3 wt. % solids. The splitter underflow tails, containi ng less than 15 wt. % bitumen, is mixed with additional diluent to raise the diluent/bitumen ratio to 4:1 to 10:1 and is gravity settled in a vapor-tight scrubber. Scrubber overflow, mostly diluent containing residual bitumen stripped from the tails, is recycled to the splitter. In concept, the sand i s first separated from the bitumen in the stripper. The substantially sand-free bitumen can then feasibly be treated with chemical demulsifier and subjected to prolonged settling in the polisher to reduce water and fines contents to low levels. Bitumen lost with the splitter tails is recovered in the scrubber using a high concentration of diluent. The scrubber overflow of bitumen and diluent is recycled to the stripper to conserve diluent.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式