Check patentability & draft patents in minutes with Patsnap Eureka AI!
Non-polyether type demulsifying agent and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A demulsifier, non-polyether technology, applied in the field of non-polyether demulsifier and its preparation, can solve the problem that acrylate polymers cannot achieve the demulsification effect
Active Publication Date: 2008-05-21
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, it has been proved by experiments that the acrylic polymer synthesized according to this method cannot achieve the demulsification effect described in the patent
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0044] Reaction components:
[0045](A) emulsifying agent: sodium dodecylbenzenesulfonate 0.06 gram; Dissolve with 75 grams of water;
[0046] (B) Initiator 1: 0.06 grams of ammonium persulfate; Dissolved with 1.5 grams of water;
[0047] (C) Hydrophobic monomer: 16.5 grams of methyl methacrylate, 9 grams of butyl acrylate; chain transfer agent: 0.4 grams of n-butyl β-mercaptoacrylate; the three are mixed and divided into 4 equal parts;
[0048] (D) Hydrophilic monomer: 3.0 grams of methacrylic acid, 1.5 grams of acrylic acid; chain transfer agent: 0.05 grams of n-butyl β-mercaptoacrylate; the three are mixed and divided into 3 equal parts;
[0049] (E) Initiator 2: 0.024 grams of tert-butyl hydroperoxide and 0.006 grams of sodium metabisulfite, 0.006 grams of ascorbic acid; dissolve with 3.0 grams of water;
[0050] (F) Terminator: 0.024 g of hydroquinone; dissolved in 1.5 g of water.
[0051] Steps:
[0052] (1) To install the instrument, put the four-neck bottle on the ...
Embodiment 2～6
[0059] Using the same emulsion polymerization method as in Example 1, adding hydrophilic monomers and hydrophobic monomers alternately and continuously to the emulsion step by step, changing the type and weight ratio of the monomers to prepare No. 2 to No. 6 non-polyether demulsifiers. Milk effect (oil and gas industry standard SY / T5281-2000) is shown in Table 2.
[0062] Raw material ratio and demulsification effect of Table 22-6 demulsifier
[0063]
[0064] In Table 2:
[0065] AA Acrylic OMAc Octyl Methacrylate
[0066] MAA Methacrylic acid EA C ethyl acrylate
[0067] MMA C Methyl methacrylate BuA C Butyl acrylate
[0068] DA C lauryl acrylate
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
Login to View More
Abstract
Disclosed are a novel non-polyether demulsifier for oil field crude oil demulsification and preparation thereof. The demulsifier disclosed is prepared by adding hydrophilic monomers and hydrophobic monomers alternately and continuously for multiple steps as following: mixing alkyl-acrylate and methyl acrylate as raw material at a certain ratio to prepare a hydrophobic monomer mixture, mixing methyl acrylate and acrylic acid as raw material at a certain ratio to prepare hydrophilic monomer mixture, dripping said hydrophobic monomer mixture and said hydrophilic monomer mixture into stable micelle solution continuously and alternately at certain temperature to prepare the product of non-polyether demulsifier, In which the ratio of monomer methacrylate ester is 30-60% of the total weight, the ratio of monomer acrylic ester is 15-40% of the total weight, the ratio of methacrylic acid is 5-30% of the total weight, the ratio of monomer acroleic acid is 5-30% of the total weight. The non-polyether demulsifier disclosed has excellent hydrophilicity and lipophilicity, and a good demulsification effect.
Description
technical field [0001] The invention relates to a non-polyether demulsifier and a preparation method thereof. Background technique [0002] At present, most of my country's oil production uses water flooding, and the produced crude oil contains a lot of water and exists in the form of emulsion. Water content in crude oil emulsion will increase the load on pumps, pipelines and storage tanks. Therefore, it is necessary to demulsify crude oil production fluid. The discovery and use of demulsifiers has a history of 100 years, and several generations of demulsifiers have been developed, such as the first generation of low molecular alcohol, cationic and anionic surfactants, mainly ethylene oxide and propylene oxide Non-ionic second-generation demulsifiers with relatively low molecular weight of block copolymers, third-generation demulsifiers of polyether and polyethylene polyamine polymers with monoalcohols, diols, and polyols as initiators, It has played a great role in oil-wa...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More