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A slurry treatment method for oil sand

A treatment method and technology for oil sands, which are used in the petroleum industry, the preparation of liquid hydrocarbon mixtures, special forms of dry distillation, etc., can solve the problems of polluting the surrounding environment, unfeasible, and high viscosity of oil sands, and achieve flexible and convenient transportation methods. , The conveying method has no dust and the effect of improving the reaction efficiency

Active Publication Date: 2020-09-01
DALIAN AIWEI ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, due to the high viscosity of oil sands, traditional mechanical crushing methods or grinding methods have not been able to break them into tiny particles for dry distillation processing
If the method of heating and pulverization is adopted, due to the extremely fine ash particles of the oil sand and the high sulfur content in the asphalt, it is easy to generate dust pollution and odor during the heating process, polluting the surrounding environment, so it is not feasible

Method used

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  • A slurry treatment method for oil sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1 The oil sand ore is sent to the agitator after primary separation, and solvent oil is added at a mass ratio of 1:4 (oil / sand), and the oil mortar is heated to 130°C during the stirring process, and the obtained oil mortar passes through a mechanical sieve The dregs were separated, and the oil mortar from which the dregs were removed was sent to a pulverizer for further grinding and homogenization to obtain an oil mortar at a temperature of 110°C. See Table 1 for its specific properties.

Embodiment 2

[0016] Example 2 The oil sand ore is sent to the agitator after primary separation, and solvent oil is added at a mass ratio of 2:3 (oil / sand), and the oil mortar is heated to 150°C during the stirring process, and the obtained oil mortar passes through a mechanical sieve The dregs were separated, and the oil mortar from which the dregs were removed was sent to a pulverizer for further grinding and homogenization to obtain an oil mortar at a temperature of 130°C. See Table 1 for its specific properties.

Embodiment 3

[0017] Example 3 The oil sand ore is sent to the agitator after primary separation, and solvent oil is added at a mass ratio of 1:1 (oil / sand), and the oil mortar is heated to 200°C during the stirring process, and the obtained oil mortar passes through a mechanical sieve The dregs were separated, and the oil mortar from which the dregs were removed was sent to a pulverizer for further grinding and homogenization to obtain an oil mortar at a temperature of 180°C. See Table 1 for its specific properties.

[0018] Table 1 Properties of oil mortar

[0019]

[0020] *Note: 20°C refers to the state when the 110°C oil mortar prepared according to the example is naturally cooled to room temperature

[0021] It can be seen from Table 1 that with the addition of solvent oil in different proportions, the prepared oil mortar has different states. From the perspective of fluidity and easy transportation, the most suitable oil / sand ratio is 1:1~1:4. If there is too little oil, the oil ...

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Abstract

An oil sand slurrying treatment method: subjecting oil sand ore to primary sorting and sending to a mixer, and adding 10%-80% of solvent oil; heating during the mixing process, separating the slag and stone of the obtained oil sand slurry by means of mechanical sieving, and sending to a pulveriser for further grinding and homogenisation. The obtained liquid state material solves the problem that oil sand easily bonds into blocks, and can also be pumped through a pipeline; the transportation method is flexible and convenient, does not raise dust, and does not pollute the environment, and pipeline transportation is more conducive to thermal insulation, reducing system heat loss. During the slurrying process, the oil sand particle size decreases to a micron level, accelerating the subsequent pyrolysis and dry distillation reaction speed and increasing reaction efficiency, such that the subsequent pyrolysis and dry distillation of the oil sand is no longer limited to traditional fixed bed or moving bed processing formats; more advanced and mature processing formats such as fluidised beds can be used, providing more possibilities for the processing and utilisation of oil sand resources.

Description

technical field [0001] The invention relates to the field of petrochemical industry and unconventional energy, in particular to a pulping treatment method of oil sand. Background technique [0002] Oil sand, also known as asphalt sand and tar sand, is a mixture of asphalt, water, sand and clay, in which asphalt content is 10-90%, sand and clay and other minerals account for 10-90%, and the rest is water. Oil sand bitumen with high density, high viscosity, high carbon-hydrogen ratio and high metal content is an unconventional oil resource, and its reserves are very rich, accounting for about 30% of the world's oil reserves. With the shortage of crude oil resources and the rising price, refining bitumen from oil sands as a supplement to petroleum has broad market prospects and huge economic benefits. The world's oil sand resources are mainly distributed in Canada, Venezuela, the United States, Russia and other countries and regions. The properties of oil sands in various regi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10G1/04C10B53/06
CPCC10B53/06C10G1/00C10G1/045
Inventor 卫建智
Owner DALIAN AIWEI ENERGY CO LTD