Chemical comprehensive treatment method of fatlute containing polymers

A technology for polymerizing oily sludge and oily sludge, applied in chemical instruments and methods, sludge treatment, oxidized water/sewage treatment, etc., can solve the problems of long treatment time, large volume, heavy equipment, etc., and achieve the effect of efficient recovery

Active Publication Date: 2015-11-25
CHINA NAT OFFSHORE OIL CORP +1
View PDF12 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment is heavy, bulky, and takes a long time to process. Therefore, the oilfield oilfield sludge treatment method is not suitable for offshore platforms. It is urgent to develop new techn

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Chemical comprehensive treatment method of fatlute containing polymers
  • Chemical comprehensive treatment method of fatlute containing polymers

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Example 1. Method for separating crude oil from polymer-containing sludge

[0050] 1. Weigh 150ml of water, 0.2g of petroleum sodium sulfonate (the average molecular weight of the distillate used in petroleum sodium sulfonate is 280-400), 0.1g of sodium pyrophosphate and 0.2g of EDTA-2Na, add 200g of poly-sludge sample in a beaker (such as figure 1 a) shown in), and then put the beaker containing the poly-sludge in a constant temperature water bath to raise the temperature to 80°C and stir. At the same time, weigh 3g sodium ferrate, 2.5g ammonium persulfate-triethanolamine (dosing ammonium perpersulfate and triethanolamine according to the mass ratio of 20-40:1), add them to 80ml water, stir well, and then put them within 10min Add it to the above flask, stir and react for 7h at 80°C.

[0051] 2. Take out the sample system processed in step 1, pour it into a sedimentation beaker, add 0.03g of organosiloxane modified polyoxyethylene-polyoxypropylene ether demulsifier (through...

Example Embodiment

[0054] Example 2. Method for separating crude oil from polymer-containing sludge

[0055] 1. Weigh 200g sample containing polysludge and 0.16g sodium nonyldodecylbenzene sulfonate into a three-necked flask, add 150ml of water, and place it in a constant temperature water bath to raise the temperature to 60°C. At the same time, weigh 3g class Fenton reagent (H 2 O 2 (30% aqueous solution) and manganese acetate in a mass ratio of 40:1), 1g sodium persulfate-ferrous acetate redox reagent system (ammonium persulfate-triethanolamine (ammonium perpersulfate and triethanolamine according to the mass ratio of 20 ~40:1, respectively add) 0.15g sodium tartrate in 80ml water, stir evenly, then add the above mixture to the flask containing poly-sludge within 30min, and stir and react at 60℃ for 5h.

[0056] 2. Take out the above-mentioned sample that has been reacted for 5 hours at 60°C in step 1), pour it into a sedimentation beaker, add 0.025g organosiloxane modified polyoxyethylene-polyoxyp...

Example Embodiment

[0059] Example 3 Method for separating crude oil from polymer-containing sludge

[0060] 1. Weigh 200g of poly-sludge sample into a three-necked flask, add 150ml of water, and place it in a constant temperature water bath to raise the temperature to 40°C. Weigh 2g of sodium perborate, 1g of calcium peroxide, 0.2g of sodium pyrophosphate, 0.3g of sodium petroleum sulfonate, 0.1g of xylene in 50g of water, stir well, and then add the above mixture to the flask containing polysludge within 10 minutes In the medium, soaking for 2h, and then heating to 55°C for 7h.

[0061] 2. Take out the above-mentioned sample reacted at 55℃ for 7h in step 1, pour it into a sedimentation beaker, add 0.03g organosiloxane modified polyoxyethylene-polyoxypropylene ether demulsifier (through methyl hydrogen silicone oil (polymerization) It is prepared by hydrosilylation reaction with allyl-terminated polyoxyethylene-polyoxypropylene block polyether, which contains 0.8% Si-H bond. The block moles of polyo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a chemical comprehensive treatment method of fatlute containing polymers. According to the first scheme, the method includes the following steps that 1, deconstruction agents, deflocculant and oil displacement agents are added to the fatlute containing the polymers, mixing and deconstruction reactions are conducted, the fatlute is deconstructed, and the oil is separated from sludge; 2, water clarfying agents are added to a treated system, and the treated system with the water clarfying agents stands so as to make oil be separated from water. According to the second scheme, the method includes the following steps that 1, deconstruction agents and deflocculant are added to the fatlut, a deconstruction reaction is conducted, and deconstructed fatlut is obtained; 2, oil displacement agents are added to the deconstructed fatlute, oil displacement is conducted, and oil is separated from sludge; 3, water clarfying agents are added to the treated system obtained in the step 2, and the treated system with the water clarfying agents stands so as to make oil be separated from water. According to the chemical comprehensive treatment method, the fatlute structure in the fatlute containing the polymers is destroyed by treating the fatlute containing the polymers, the fatlute containing the polymers is decomposed, efficient recycling of oil is achieved, and the chemical comprehensive treatment method is suitable for treatment of the fatlute containing the polymers on an offshore platform and reusing of oil in the fatlute containing the polymers.

Description

technical field [0001] The invention relates to a chemical comprehensive treatment method for oil sludge containing poly, and belongs to the technical field of oil sludge treatment and crude oil recovery. Background technique [0002] Polymer flooding EOR technology has become one of the important technologies for increasing reserves and production in oilfields. However, compared with water flooding, residual polymers in the produced fluid increase the strength of the oil-water interface film, and the difficulty of producing produced fluid treatment is greatly increased. Especially the polymer-containing sewage will produce viscous polymer-containing oil sludge after treatment, which will have a certain impact on the ground treatment process. Onshore oilfields typically dewater sludge by filter press or centrifuge, followed by drying. However, the equipment is heavy, bulky, and takes a long time to process. Therefore, the oilfield oilfield sludge treatment method is not su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F11/00C02F11/14C02F1/72C02F1/40C02F101/32
Inventor 王秀军靖波翟磊檀国荣张健
Owner CHINA NAT OFFSHORE OIL CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap