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Method for separating heavy oil ore containing rich carbonate

A heavy oil mine and separation method technology, applied in the field of crushing, flotation, transportation, separation of heavy oil, and reaction, can solve the problems of solvent leakage and high energy consumption, and achieve convenient separation, accelerated reaction process, and improved The effect of extraction efficiency

Active Publication Date: 2016-09-07
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, they are all accompanied by their own shortcomings, such as the problem of solvent recovery in the residual sand solid after solvent extraction and the environmental problem of solvent leakage, the problem of high energy consumption in the thermal cracking process, the stability and scale of microbial fermentation , all of these make the above-mentioned technologies encounter various resistances in the process of industrialization, which eventually lead to their failure to achieve large-scale use in industry

Method used

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  • Method for separating heavy oil ore containing rich carbonate
  • Method for separating heavy oil ore containing rich carbonate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A separation method rich in carbonate heavy oil, the steps are as follows:

[0052] 5kg of oil sand (carbonate content 45%, maximum particle size 5cm) pulverized by pulverizer A is sent to the mixing reaction device B and sulfuric acid with a pH of 1 according to the solid-liquid ratio of 1:30 (mass ratio) at room temperature , fully stirred and mixed and reacted for 1 hour, and stood for 20 minutes to take out the upper layer of asphalt foam.

[0053] The extraction rate of the obtained asphalt foam is up to 99.5%, the solid sand and clay remaining in the foam are less than 50% of the total foam mass, the water content is less than 15% of the total foam mass, the total concentration of metal ions in the solution exceeds 1g / kg, and the solid precipitate About 0.55kg.

Embodiment 2

[0055] A separation method rich in carbonate heavy oil, the steps are as follows:

[0056] 5 kg of oil sand (carbonate content 10%, maximum particle size 0.5 cm) pulverized by pulverizer A is sent into mixing-reactor B and phosphoric acid with a concentration of 2 mol / liter is 1:3 according to the solid-liquid ratio ( mass ratio) at 55°C, fully mixed, ultrasonically reacted for 120 minutes, and stood still for 2 minutes to take out the upper layer of asphalt foam.

[0057] The extraction rate of the obtained asphalt foam reaches 99.7%, the residual solid sand and clay in the foam are less than 25% of the total mass of the foam, the water content is less than 35% of the total mass of the foam, the total concentration of metal ions in the solution exceeds 0.8g / 100ml, and the solid precipitates The weight is about 1.9kg.

Embodiment 3

[0059] A separation method rich in carbonate heavy oil, the steps are as follows:

[0060] 5kg of Indonesian oil sand (carbonate content 52%, maximum particle size 10cm) pulverized by pulverizer A is sent into mixing-reactor B and sulfuric acid with a concentration of 5 mol / liter is 1:2 according to the solid-liquid ratio ( mass ratio) at 95°C, fully mixed, stirred, reacted for 60 minutes, and stood still for 20 minutes to take out the upper layer of asphalt foam.

[0061] The asphalt extraction rate of the obtained asphalt foam is up to 99.5%, the solid sand and clay remaining in the foam are less than 55% of the total mass of the foam, the water content is less than 25% of the total mass of the foam, the total concentration of metal ions in the solution exceeds 5g / 100ml, and the solid precipitates The weight is about 1.75kg.

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Abstract

The invention relates to a method for separating heavy oil ore containing rich carbonate. Heavy oil resources, such as oil sand, oil shale and oily sludge, containing carbonate mineral substances are mixed with a prepared solution and a chemical additive under certain conditions, a reaction occurs, carbonate in the heavy oil ore is converted, and thus the target of separating heavy oil and mineral particles is achieved; a crude heavy oil product, an aqueous solution containing various rich metal ions and mineral substances used for building materials are obtained in the end of the separating process. By means of the technology, heavy oil can be effectively extracted from ore, and mineral substances such as metal ions in heavy oil ore can be recycled to a great extent; energy resources are greatly saved, and the purpose of energy-saving production of heavy oil normal-temperature extracting or recycling is achieved.

Description

technical field [0001] The invention relates to a separation method for separating heavy oil from carbonate-rich heavy oil ore, belongs to the technical field of chemical separation and reaction engineering, and specifically relates to crushing, reaction, transportation, flotation and other methods. Background technique [0002] Heavy oil deposits (such as oil sands, oil shale, ground oil, oil sludge, etc.) are a complex mixture of heavy oil (or bitumen), sand, clay and a small amount of water. Because of its huge reserves, it has gradually become a reserve oil resource. Taking oil sands as an example, its proven reserves account for about one-third of the total existing oil resources, and the technically recoverable reserves are about 651 billion barrels, mainly distributed in Canada, Venezuela, the United States, Russia, Indonesia and China It is a potential alternative energy source for petroleum. [0003] Oil sand mining can be divided into open-pit mining and in-situ ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/04C10G1/00
CPCC10G1/002C10G1/04C10G1/045C10G2300/10
Inventor 李鑫钢何林隋红
Owner TIANJIN UNIV
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