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Separating and exploiting method and system for processing carbonate mineral substance containing heavy oil resources

Active Publication Date: 2016-10-12
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, an important problem faced by this technology is: a large amount of waste liquid is generated during the production process, and the waste liquid is rich in calcium salts, iron salts and other substances

Method used

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  • Separating and exploiting method and system for processing carbonate mineral substance containing heavy oil resources

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A separate mining method and system for processing heavy oil resources containing carbonate minerals, the operation steps are as follows:

[0059] (1) 15kg of oil sand (carbonate content 42%, maximum particle size 0.5cm) pulverized by pulverizer A is sent to mixing-reactor B and hydrobromic acid with a pH of 1 according to the solid-to-liquid ratio of 1:30 (mass ratio) were mixed thoroughly at room temperature and reacted for 1 hour.

[0060] (2) After the obtained asphalt foam is degassed by C, 0.5 times the mass of heptane is added to carry out solid-liquid separation (first-order sedimentation and first-order centrifugation D), and the moisture content in the upper oil phase clear liquid obtained after separation is less than 3.5%, and the solid content is less than 1.5% %, into E for separation and recovery of solvent, while obtaining asphalt oil product 14, the asphalt oil recovery rate is 79.3%, and the asphaltene content in the asphalt oil is less than 10%.

[0...

Embodiment 2

[0066] A separate mining method and system for processing heavy oil resources containing carbonate minerals, the operation steps are as follows:

[0067] ⑴ 15kg of oil sand (carbonate content 61%, maximum particle size 5cm) pulverized by pulverizer A is sent to mixing-reactor B with hydrobromic acid with a concentration of 2 mol / liter according to the solid-to-liquid ratio of 1:3 (Mass ratio) Mix well at room temperature and react for 120 minutes.

[0068] (2) After the degassing operation of the obtained bitumen foam, 5 times the mass of heptane is added to carry out solid-liquid separation (first-stage sedimentation and third-stage centrifugation D). %, into E for separation and recovery of the solvent, while obtaining asphalt oil product 14, the asphalt oil recovery rate is 85.2%, and the asphaltene content in the asphalt oil is less than 5%.

[0069] (3) The emulsion and solid precipitate obtained from the solid-liquid separation device D are sent to the pickling reaction...

Embodiment 3

[0074] A separate mining method and system for processing heavy oil resources containing carbonate minerals, the operation steps are as follows:

[0075] (1) 15kg of oil sludge pulverized by pulverizer A (carbonate content 56%, maximum particle size 1.5cm) is sent to mixing-reactor B with formic acid with a concentration of 3 mol / liter according to the solid-liquid ratio of 1:3 ( mass ratio) were fully mixed at room temperature, and reacted for 120 minutes.

[0076] (2) After the obtained asphalt foam is degassed by C, 3 times the mass of pentane is added to carry out solid-liquid separation (two-stage sedimentation and three-stage suspension D). 1.5%, enter E for separation, solvent recovery, and simultaneously obtain asphalt oil product 14, the asphalt oil recovery rate is 82.5%, and the asphaltene content in the asphalt oil is less than 3.5%.

[0077] (3) The emulsion and solid precipitate obtained from the solid-liquid separation device D are sent to the pickling reaction d...

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Abstract

The invention relates to a separating and exploiting method for processing carbonate mineral substance containing heavy oil resources. The method is characterized by comprising the steps that the carbonate mineral substance containing heavy oil resources such as oil sand, oil shale and oily sludge are mixed with a prepared solution and a chemical additive for reacting under the certain condition, mineral substances in heavy oil deposit are dissolved, and then the purpose of separating heavy oil from mineral particles is achieved; the separated heavy oil is subjected to subsequent processing treatment to further remove entrained water and solid particles, and a clean heavy oil product is obtained; waste liquid and mineral substance precipitates which are generated in the previous process are recycled separately, and then harmless discharge is finally achieved. Therefore, not only is the heavy oil extracted out from the oil deposit effectively, but also energy sources are greatly saved, and the energy-saving and emission-reducing production purposes of normal-temperature extracting or heavy oil recycling are achieved.

Description

technical field [0001] The invention relates to a method and system for separating and exploiting heavy oil resources containing carbonate minerals, belonging to the technical field of chemical separation and reaction engineering, and specifically relates to crushing, reaction, sedimentation, filtration, distillation, crystallization 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 processing capacity, 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 oil. [0003] Oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/04
CPCC10G1/04
Inventor 隋红何林李鑫钢许长春丛山杨汉斌
Owner TIANJIN UNIV
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