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Systems and methods for continuous separation and conversion of carbonate-rich heavy oil deposits

A heavy oil ore and carbonate technology, which is applied in the petroleum industry and the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of solvent leakage and high energy consumption, and achieve the effects of accelerating the reaction process, simple operation, and reducing environmental pollution

Active Publication Date: 2018-05-15
浙江省宁波市威欧思能源科技发展有限公司
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  • Abstract
  • Description
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  • 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

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  • Systems and methods for continuous separation and conversion of carbonate-rich heavy oil deposits

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Effect test

Embodiment 1

[0037] A method for continuous separation and conversion of carbonate-rich heavy oil ore, the steps are as follows:

[0038] The oil sludge crushed by the crusher A (the carbonate content in the mineral is 33%, the maximum particle size is 5cm) is fed into the mixing-reactor B1 at a speed of 5kg / min, 50kg of oil sand ore, and the concentration of 2mol / L of hydrogen fluoride The mixture of acid and hydrochloric acid (mixed at a volume ratio of 1:1) is fully mixed at 35°C with a solid-to-liquid ratio of 1:3 (mass ratio), ultrasonicated, and reacted for a total of 40 minutes. Let stand for 5 minutes to take out the upper asphalt foam. Discharge the middle solution phase and the solid material at the bottom respectively; when the feeding of B1 is finished, feed to B2, B2 and B1 perform the same operation, switch in turn, such as figure 1 Shown. The recovery rate of the obtained asphalt foam is 99.7%, the residual solid sand and clay in the foam are less than 40% of the total mass of...

Embodiment 2

[0040] A method for continuous separation and conversion of carbonate-rich heavy oil ore, the steps are as follows:

[0041] The oil sand (the carbonate content in the mineral 10.2%, the maximum particle size is 0.5cm) crushed by the crusher A is fed into the mixing-reactor B1 at a speed of 15kg / min. 50kg of oil sand ore, and the concentration of 2mol / L The mixture of hydrofluoric acid and hydrochloric acid (mixed at a volume ratio of 1:1) is fully mixed at 35°C according to a solid-to-liquid ratio of 1:4 (mass ratio), ultrasonicated, reacted for a total of 40 minutes, and left for 5 minutes to take out the upper asphalt foam , And simultaneously discharge the middle solution phase and the solid substance at the bottom; when the feeding of B1 is finished, feed to B2, B2 and B1 perform the same operation, and so on, switch to B3, B4, B5 respectively, such as figure 1 Shown.

[0042] The recovery rate of the obtained asphalt foam is 99.5%, the metal ion concentration in the discharg...

Embodiment 3

[0044] A method for continuous separation and conversion of carbonate-rich heavy oil ore, the steps are as follows:

[0045] The sludge crushed by the crusher A (the carbonate content in the mineral is 83.4%, the maximum particle size is 0.5cm) is fed into the mixing-reactor B1 at a speed of 15kg / min, 50kg of oil sand ore, and formic acid with a concentration of 5 mol / L According to the solid-to-liquid ratio of 1:4 (mass ratio), mix thoroughly at 5℃, microwave, react for a total of 40 minutes, let stand for 5 minutes to take out the upper asphalt foam, and simultaneously discharge the middle solution phase and the bottom solid matter; when B1 After the end of the feeding, feed to B2, B2 and B1 perform the same operation, and so on, switch to B3, B4, B5 respectively, such as figure 1 Shown.

[0046] The recovery rate of the obtained asphalt foam is 99.5%, the metal ion concentration in the discharged solution exceeds 56g / kg, the residual solid sand and clay in the foam are less tha...

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Abstract

The present invention relates to a system and method for continuous separation and conversion of carbonate-rich heavy oil deposits. Heavy oil resources containing carbonate minerals, such as oil sands, oil shale, and landed oil sludge, can be used in certain situations. It is mixed with the configured solution and reacted, so as to achieve the goal of separating heavy oil from mineral particles. Multiple reactors and flotation devices are connected in parallel to realize continuous operation, and the separation process finally obtains crude heavy oil, aqueous solution rich in various metal ions, and minerals for building materials. This technology can not only effectively extract heavy oil from mines, but also recover minerals in heavy oil mines to a large extent. It saves energy greatly and realizes the purpose of energy-saving production of normal temperature extraction or recovery of heavy oil.

Description

Technical field [0001] The invention relates to a continuous separation system and method for separating heavy oil from carbonate-rich heavy oil, belonging to the technical field of chemical separation and reaction engineering, and specifically relates to a method for extracting and separating heavy oil by using an acid solution. Background technique [0002] Heavy oil (such as oil sands, oil shale, ground oil, sludge, etc.) is a complex mixture of heavy oil (or asphalt), 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 petroleum resources, and the existing technologically recoverable reserves are about 651 billion barrels, mainly distributed in Canada, Venezuela, the United States, Russia, Indonesia and China In other places, it is a kind of potential oil alternative energy. [0003] Oil sand mining can be div...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/04
CPCC10G1/04C10G1/045
Inventor 程婧李研张庭云
Owner 浙江省宁波市威欧思能源科技发展有限公司
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