Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Demetallization agent for hy drocarbon oil and its operation method

A technology of demetallization agent and hydrocarbon oil, applied in the metal field, can solve the problems of inability to meet the oil refining process, unfavorable industrialization, and low removal efficiency.

Inactive Publication Date: 2005-03-02
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned decalcification technology has a certain effect on the removal of calcium in crude oil, but the removal efficiency is not high, especially for crude oil with high calcium content, such as large amount of demetallization agent, high cost, which is not conducive to industrialization or The removal efficiency is low, so it cannot meet the requirements of the refining process, especially the requirements of catalytic cracking and heavy oil hydrogenation process.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The compound demetallization agent prepared in the laboratory consists of A: 10% formic acid, 10% acetic acid, 25% propionic acid; B: 40% maleic acid; C: 0.1% polyacrylamide; D: 1% 2-mercaptobenzo Thiazole; the remainder is deionized water.

[0022] The crude oil used in the experiment is heavy oil from the ninth district of Karamay, containing 240ppm calcium. The demulsifier FC9301 and demetallizer are made into an aqueous solution, the amount of demulsifier added is 50ppm, and the water injection rate is 10%. Then stir and mix with crude oil in the agitator to fully contact the oil and water, pour the oil-water mixture into the conical glass tank, put the conical tank into the DP-II electric desalter, the electric field gradient of the desalter is 200v / cm, and the temperature is 80°C. Time 1 hour. After the oil and water are separated, take the de-oiled oil sample and use the plasma emission spectrometer to measure the calcium content. Table 1 is the experimental r...

Embodiment 2

[0026] The compound demetallization agent prepared in the laboratory consists of A: 30% formic acid, 30% acetic acid, 10% butyric acid; B: 20% maleic acid; C: 0.2% polyacrylamide; D: 0.5% HPAA; ionized water.

[0027] The oil used in the experiment is the mixed oil (82.8ppm calcium) mixed with Beijiang crude oil (calcium content: 112.3ppm) and southern Xinjiang crude oil (calcium content 14ppm) at a ratio of 7:3. The experimental method is the same as in Example 1. The demulsifier is NS-9906, and the dosage is 50ppm. Table 2 is the experimental results.

[0028] Table 2

[0029] Dose / Calcium Ratio

Embodiment 3

[0031] The compound demetallization agent prepared in the laboratory consists of A: 30% propionic acid, 30% formic acid, 20% acetic acid; B: 10% succinic acid; C: 0.1% polyacrylamide; D: 0.5% hydroxyethylene di Phosphonic acid; remainder is deionized water.

[0032] The oil used in the experiment is Beijiang crude oil (calcium-containing: 112.3ppm), and the experiment method is the same as in Example 2. The demulsifier is NS-9906, and the dosage is 50ppm. The experimental results are shown in Table 3.

[0033] table 3

[0034] Dose / Calcium Ratio

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

A demetalating agent for hydrocarbon oil contains one mor mixture of more than two of formic acid, acetic acid, propionic acid and butanoic acid, one or mixture of butanedioic acid and fumaric acid or maleic acid, polyacrylamide, one or mixture of more than two of S-carboxyethyl thiosuccinic acid, 2-mercaptobenzothiazole, hydroxyethylidene biphosphonic acid and 2-hydroxyphosphion acetic acid, and water.

Description

technical field [0001] The invention relates to a method for removing metals such as calcium and magnesium from hydrocarbon oils such as crude oil, heavy hydrocarbon residue oil or solvent deasphalted oil. technical background [0002] In recent years, with the development of oil extraction technology, many heavy crude oils have been extracted. The content of metals in these crude oils, especially some alkaline earth metals such as Ca and Mg, has greatly increased, and people have paid more and more attention to their influence on crude oil processing. Studies have shown that the increase of Ca content in raw oil will significantly reduce the molecular sieve and matrix area of ​​the catalyst, which will directly affect the activity of the catalyst. In recent years, some refineries refining high-Ca crude oil have been poisoned and deactivated by catalytic cracking agents, which not only greatly reduces the yield of light oil, but also affects the quality of downstream residu...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C10G17/02C10G21/16
Inventor 徐振洪傅晓萍谭丽李本高吴晓东
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com