Composite water treatment agent for thickened oil thermal recovery boiler and preparation method thereof

A water treatment agent and heavy oil thermal recovery technology, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc., can solve the problem of excessive iron content in steam and condensate, corrosion of thermal system, etc. problems, to achieve significant social benefits and broad application prospects

Inactive Publication Date: 2013-10-02
PETROCHINA CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is still not enough, because corrosion may still occur in the boiler system at high temperature and medium pressure due to the concentration of oxygen in the boiler. Therefore, it needs to be completely removed by

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
  • Composite water treatment agent for thickened oil thermal recovery boiler and preparation method thereof
  • Composite water treatment agent for thickened oil thermal recovery boiler and preparation method thereof
  • Composite water treatment agent for thickened oil thermal recovery boiler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a kind of composite water treatment agent for heavy oil thermal recovery boiler, with the total weight of the composite water treatment agent being 1000 parts by weight, it includes the following components:

[0023]

[0024] The composite water treatment agent for the heavy oil thermal recovery boiler is prepared according to the following steps:

[0025] Add water to the reaction kettle, and then add diethylenetriaminepentamethylenephosphonic acid, sodium polyacrylate, maleic acid acrylic acid copolymer, 2-hydroxyphosphonoacetic acid, acetone oxime while stirring. React for 30-40 minutes under normal pressure to obtain a composite water treatment agent for heavy oil thermal recovery boilers.

[0026] Technical effect test:

[0027] Add the composite water treatment agent for heavy oil thermal recovery boilers provided in this example to the boiler water supply of Qi 40. The dosage of the composite water treatment agent for heavy oil therma...

Embodiment 2

[0049] This embodiment provides a kind of composite water treatment agent for heavy oil thermal recovery boiler, with the total weight of the composite water treatment agent being 1000 parts by weight, it includes the following components:

[0050]

[0051] The composite water treatment agent for the heavy oil thermal recovery boiler is prepared according to the following steps:

[0052] Add water to the reaction kettle, and then add diethylenetriaminepentamethylenephosphonic acid, sodium polyacrylate, maleic acid acrylic acid copolymer, 2-hydroxyphosphonoacetic acid, acetone oxime while stirring. React for 30-40 minutes under normal pressure to obtain a composite water treatment agent for heavy oil thermal recovery boilers.

[0053] Technical effect test:

[0054] Add the composite water treatment agent for heavy oil thermal recovery boilers provided in this example to the boiler water supply in Xiaowa Oilfield. The dosage of the composite water treatment agent for heavy ...

Embodiment 3

[0059] This embodiment provides a kind of composite water treatment agent for heavy oil thermal recovery boiler, with the total weight of the composite water treatment agent being 1000 parts by weight, it includes the following components:

[0060]

[0061] The composite water treatment agent for the heavy oil thermal recovery boiler is prepared according to the following steps:

[0062] Add water to the reaction kettle, and then add diethylenetriaminepentamethylenephosphonic acid, sodium polyacrylate, maleic acid acrylic acid copolymer, 2-hydroxyphosphonoacetic acid, acetone oxime while stirring. React for 30-40 minutes under normal pressure to obtain a composite water treatment agent for heavy oil thermal recovery boilers.

[0063] Technical effect test:

[0064] Add the composite water treatment agent for heavy oil thermal recovery boilers provided in this example to the boiler water supply of Jin 45, and the dosage of the composite water treatment agent for heavy oil t...

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 relates to a composite water treatment agent for a thickened oil thermal recovery boiler and a preparation method thereof. The composite water treatment agent for the thickened oil thermal recovery boiler comprises the following components according to weight percentage: 10%-25% of DTPMP (diethylene triamine penta methylene phosphonic acid), 10%-15% of sodium polyacrylate, 10%-12% of maleic acid acrylic copolymer, 5%-10% of 2-hydroxyphosphonoacetic acid, 5%-10% of acetone oxime, and the balance of water. The preparation method of the composite water treatment agent for the thickened oil thermal recovery boiler comprises the following steps of adding water into a reaction kettle, then stirring and simultaneously adding the DTPMP, the sodium polyacrylate, the maleic acid acrylic copolymer, the 2-hydroxyphosphonoacetic acid and the acetone oxime, then reacting for 30-40 minutes, and obtaining the composite water treatment agent for the thickened oil thermal recovery boiler. According to the composite water treatment agent for the thickened oil thermal recovery boiler, problems of corrosion and scaling of a steam drive thermal recovery are solved, and the requirement on production on site is met.

Description

technical field [0001] The invention relates to a composite water treatment agent for heavy oil thermal recovery boilers and a preparation method thereof, belonging to the technical field of preparation of water treatment agents. Background technique [0002] In the process of boiler water treatment, the main problems that are prone to occur in boiler equipment and pipelines are: corrosion, scaling, sediment, and boiler water entrainment. [0003] Evaporation from the boiler can lead to concentration of impurities. The deposition of scale in boilers on heat exchange surfaces, or the deposition of suspended matter on metal surfaces, becomes hard and sticky. The high temperatures in the boiler break down some minerals and cause others to become less soluble. [0004] When the boiler feed water contains iron, iron scale will be formed on the metal heating surface. Due to the potential difference between the metal surface and the iron scale deposits, it will cause localized co...

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): C02F5/10C02F5/14
Inventor 张洪君王浩郑猛张西子闫峰郭韬何强亢思丹张秋丽刘丽
Owner PETROCHINA CO LTD
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