公开(公告)号：US20140238903A1

公开(公告)日：2014-08-28

申请号：US14347467

申请日：2012-10-29

Applicant: INDIAN OIL CORPORATION LTD.

Inventor： Devotta Irudayaraj ,  Naduhatty Selai Raman ,  Brijesh Kumar ,  Santanam Rajagopal

IPC: C10G21/28

CPC classification number: C10G21/28 ,  C10G21/003 ,  C10G21/30 ,  C10G2300/206 ,  C10G2300/4006 ,  C10G2300/4056 ,  C10G2300/44 ,  C10G2400/10

Abstract: The invention concerns with improved and more flexible deasphalting process for production of lube oil base stock as well as feed stock for secondary processes depending on requirement from heavy residual hydrocarbon oil containing saturates, aromatics, resins and asphaltenes etc by contacting the oil with a solvent comprising of hydrocarbon containing two to six carbon atoms, preferably LPG having C3-C4 hydrocarbons and mixture thereof at predetermined deasphalting conditions wherein the yield of deasphalted oil including its quality is controlled by varying the deasphalting conditions including the operating temperature. The yield variations of 15 to 60 wt % is achieved by swinging the temperature by about 10-20° C. within the operative temperature range of 70-130° C. keeping the rest of the operating conditions including solvent to feed ratio same. The LPG solvent can be recovered using supercritical mode of operation using technology known in the art and recycled.

Abstract translation: 本发明涉及用于生产润滑油基础原料的改进和更灵活的脱沥青方法，以及根据来自含有饱和烃，芳族化合物，树脂和沥青质等的重残余烃油的要求，通过使油与包含 的含有2至6个碳原子的烃，优选具有C 3 -C 4烃的LPG及其混合物在预定的脱沥青条件下，其中包括其质量的脱沥青油的产率通过改变包括操作温度在内的脱沥青条件来控制。 通过在70-130℃的操作温度范围内将温度摆动约10-20℃来实现15至60重量％的产率变化，保持其余的操作条件包括溶剂与进料比相同。 可以使用超临界操作模式使用本领域已知的技术回收LPG溶剂。

公开(公告)号：US09828555B2

公开(公告)日：2017-11-28

申请号：US14347467

申请日：2012-10-29

Applicant: INDIAN OIL CORPORATION LTD.

Inventor： Devotta Irudayaraj ,  Naduhatty Selai Raman ,  Brijesh Kumar ,  Santanam Rajagopal

IPC: C10G21/30 ,  C10G21/00 ,  C10G21/28

CPC classification number: C10G21/28 ,  C10G21/003 ,  C10G21/30 ,  C10G2300/206 ,  C10G2300/4006 ,  C10G2300/4056 ,  C10G2300/44 ,  C10G2400/10

Abstract: The invention concerns with improved and more flexible deasphalting process for production of lube oil base stock as well as feed stock for secondary processes depending on requirement from heavy residual hydrocarbon oil containing saturates, aromatics, resins and asphaltenes etc by contacting the oil with a solvent comprising of hydrocarbon containing two to six carbon atoms, preferably LPG having C3-C4 hydrocarbons and mixture thereof at predetermined deasphalting conditions wherein the yield of deasphalted oil including its quality is controlled by varying the deasphalting conditions including the operating temperature. The yield variations of 15 to 60 wt % is achieved by swinging the temperature by about 10-20° C. within the operative temperature range of 70-130° C. keeping the rest of the operating conditions including solvent to feed ratio same. The LPG solvent can be recovered using supercritical mode of operation using technology known in the art and recycled.