Device and method for processing crude oil
First Claim
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1. An apparatus comprising:
- a processing tank having a water drainage port provided at the bottom thereof;
a membrane that is installed in the processing tank and selectively allows the oil content in a crude oil to pass therethrough;
wherein said membrane is installed movably in the processing tank and a driving means which moves said membrane is provided;
a means which pressurizes the crude oil; and
a removal pipe for removing dehydrated oil that has passed through said membrane.
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Abstract
A crude oil processing method is provided wherein a membrane module is immersed in the crude oil contained in a processing tank and the crude oil is pressurized or driven by gravity for gravitational filtration, thereby to pass through the membrane, with the dehydrated oil that has passed being taken out through an oil collecting pipe. According to this method, a high degree of separation and removal of water content from the crude oil can be carried out regardless of the properties of the crude oil, and muddy matter can also be separated and removed.
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Citations
29 Claims
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1. An apparatus comprising:
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a processing tank having a water drainage port provided at the bottom thereof;
a membrane that is installed in the processing tank and selectively allows the oil content in a crude oil to pass therethrough;
wherein said membrane is installed movably in the processing tank and a driving means which moves said membrane is provided;
a means which pressurizes the crude oil; and
a removal pipe for removing dehydrated oil that has passed through said membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 27)
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13. An apparatus comprising:
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a processing tank having a water drainage port provided at the bottom thereof;
a membrane that is installed in the processing tank and selectively allows the oil content in a crude oil to pass therethrough;
wherein said membrane is installed movable in the processing tank and a driving means which moves said membrane is provided; and
a removal pipe that communicates on one end thereof with a passage of the dehydrated oil that has passed said membrane and opens on the other end thereof at a position lower than the crude oil surface in the processing tank. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method comprising immersing a membrane module in crude oil contained in a processing tank, pressurizing the crude oil to pass through the membrane, moving said membrane in said processing tank, and removing the dehydrated oil that has passed therethrough through an oil collecting pipe.
- 28. A method comprising immersing a membrane module in crude oil contained in a processing tank, conducting gravitational filtration to make the crude oil pass through said membrane, moving said membrane in said processing tank, and removing the dehydrated oil obtained in the gravitational filtration through an oil collecting pipe.
Specification