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A device and method for generating electricity using oilfield-specific polyacrylamide solution

A polyacrylamide and electric method technology is applied in the field of resource utilization and energy recovery of petroleum extraction wastewater, which can solve the problems of increasing treatment cost, high emulsification degree, large suspended matter, etc., and achieves energy saving, production Electric fast effect

Active Publication Date: 2018-01-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the extensive use of polymer flooding technology in oil extraction, although the oil recovery rate has been stabilized, it has greatly increased the difficulty of producing water treatment, because the sewage containing polymer has high viscosity, high emulsification degree, and difficult oil-water separation. characteristics, and due to the problem of large suspended solids due to high viscosity, etc., the processing cost is virtually increased, so how to reduce the cost under the condition of meeting the processing standard becomes a key issue

Method used

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  • A device and method for generating electricity using oilfield-specific polyacrylamide solution
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  • A device and method for generating electricity using oilfield-specific polyacrylamide solution

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specific Embodiment approach 1

[0026] Specific implementation mode one: combine figure 1 Describe this embodiment mode, a kind of device that utilizes oil field special-purpose polyacrylamide solution to generate electricity of this embodiment mode, it is composed of cathode chamber 1, anode chamber 2, proton exchange membrane 3, titanium wire brush 4, reference electrode 5, outer It consists of a resistor 6, two water outlets 7, two feed ports 8, a wire 9, a cavity 10 and an aeration head 11;

[0027] The inner cavity of the cavity 10 is divided into a cathode chamber 1 and an anode chamber 2 by a proton exchange membrane 3 vertically arranged in the middle, and the two ends of the proton exchange membrane 3 run through the upper top and the lower bottom of the cavity 10, and It is located outside the cavity 10; titanium wire brushes 4 are respectively arranged in the cathode chamber 1 and the anode chamber 2, and one end of the two titanium wire brushes 4 respectively penetrates the upper top of the cavit...

specific Embodiment approach 2

[0029] Specific implementation mode two: combination figure 1 This embodiment is described. The first difference between this embodiment and the specific embodiment is that the wire connected to the reference electrode 5 runs through the top of the anode chamber 2 and is sealed by a rubber plug. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0030] Specific implementation mode three: combination figure 1 This embodiment is described. The difference between this embodiment and the first embodiment is that the cathode chamber 1 and the anode chamber 2 have the same volume. Other compositions and connection methods are the same as those in Embodiment 1.

[0031] Specific implementation mode four: combination figure 1 Describe this embodiment, a method for generating electricity by using a polyacrylamide solution dedicated to oilfields, the method is carried out by using the device described in Embodiment 1, and the specific operations are as follows:

[0032] 1. Inoculate the titanium wire brush 4 in the anode chamber 2 and the titanium wire brush 4 in the cathode chamber 1 with activated sludge that has the ability to degrade refining wastewater, and then add acetonitrile refining sludge to the anode chamber 2 and cathode chamber 1 respectively. For waste water, the anode chamber 2 is sealed for 24 hours, and the ...

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Abstract

The invention provides a device and method for producing electricity by utilizing a polyacrylamide solution specially used for an oil field and relates to a device and method for producing electricity. The device provided by the invention is composed of a cathode chamber, an anode chamber, a proton exchange membrane, a titanium wire brush, a reference electrode, an external resistor, two water outlets, two feeding holes, a conducting wire, a cavity and an aerator. The method provided by the invention comprises the following steps: adding a polyacrylamide solution into two reaction chambers, respectively adding a certain amount of domesticated activated sludge into the reaction chambers as starting microorganisms, and starting and running at room temperature, so that electric current can be produced. Microbial florae used in the method provided by the invention are from activated sludge which is domesticated with the polyacrylamide solution for a long time, reaction is started by virtue of the method, and the advantages of quick electricity production and maintenance of the whole relatively stable system are achieved; meanwhile, the method is carried out at normal temperature and heating does not need to be carried out, so that energy is saved, the device and the method which are provided by the invention have a broad application prospect, and important theoretical reference and practice are provided for recycling and energy utilization of oilfield sewage.

Description

technical field [0001] The invention relates to the field of resource utilization and energy recovery of petroleum production waste water. A method and device for generating electricity by using polyacrylamide commonly used in chemically driven oil recovery has been developed. Harmful new technologies. Background technique [0002] With the extensive use of polymer flooding technology in oil extraction, although the oil recovery rate has been stabilized, it has greatly increased the difficulty of producing water treatment, because the sewage containing polymer has high viscosity, high emulsification degree, and difficult oil-water separation. characteristics, and due to the problem of large suspended solids due to high viscosity, etc., the processing cost is virtually increased, so how to reduce the cost while meeting the processing standards has become a key issue. [0003] At present, when the existing water treatment technology has entered a bottleneck period, a new way ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/00C02F3/30C02F3/34H01M8/16
CPCC02F3/005C02F3/301C02F3/341C02F2101/18C02F2103/365C02F2201/009C02F2305/06H01M8/16Y02E60/50Y02P70/50
Inventor 魏利魏东李春颖魏超
Owner HARBIN INST OF TECH
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