A new type of oil shale dry distillation refining method and device

An oil shale and dry distillation technology, which is applied in the field of oil shale dry distillation and oil refining, can solve the problems of slow development, oil shale utilization rate of less than 85%, and no oil shale dry distillation furnace.

Inactive Publication Date: 2011-12-28
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1) The oil shale carbonization furnace has not been organically combined with the circulating fluidized bed technology, and the semi-coke after carbonization has not been effectively used for combustion and power generation;
[0007] 2) For massive shale retort technology, wet coke is used to extract coke, and semi-coke is difficult to be further utilized, and because gas is used as heat carrier, retort gas is diluted, the condensation recovery system is huge, and the calorific value of gas is low, so it is difficult to further Comprehensive utilization
And for massive shale dry distillation technology, the utilization rate of oil shale is less than 85%;
[0008] 3) For granular shale dry distillation technology, shale ash is used as the heat carrier, and one part of semi-coke is mixed with three parts of shale ash, so that the calorifi...

Method used

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  • A new type of oil shale dry distillation refining method and device
  • A new type of oil shale dry distillation refining method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0055] This embodiment provides a kind of oil shale dry distillation refinery unit, its structure is as follows figure 1 shown.

[0056] The oil shale dry distillation refinery unit includes a crusher 1, a screening machine 2, a riser fluidized dryer 3, a settling chamber 4, a first cyclone 5, a dry distillation section, a waste heat boiler 6, a circulating fluidized bed boiler 10, a filter Device 11, first heat exchanger 13, fractionation tower 12, second cyclone 21, collection container 17, screw feeder 18, slag cooler 19, gas generator set 20; wherein,

[0057] The riser fluidized dryer 3 is provided with a first inlet, a second inlet and an outlet;

[0058] Settling chamber 4 is provided with an inlet, a first outlet and a second outlet;

[0059] The first cyclone 5 is provided with an inlet, a first outlet and a second outlet;

[0060] The retort section includes a hopper 8, a distributor 9 and a retort chamber 14, and is provided with a first outlet and a second outle...

Embodiment 2

[0075] This embodiment provides an oil shale dry distillation refining method, which is carried out by using the oil shale dry distillation refinery device provided in Example 1, including the following steps:

[0076] The oil shale is input into the crusher 1 for crushing, and then the oil shale particles with a particle size below 15 mm are screened out by the sieving machine 2 as the oil shale raw material, and input into the riser fluidized dryer 3;

[0077] In the riser fluidized dryer 3, the oil shale particles are dried with hot flue gas at 200-400°C from the waste heat boiler 6;

[0078] The hot flue gas brings the dried oil shale particles into the settling chamber 4 to settle down, and the dust-containing flue gas enters the first cyclone 5 for secondary separation to separate the dust from the flue gas;

[0079] The dust separated from the flue gas is mixed with the settled oil shale particles in the settling chamber 4 into the hopper 8 of the retort section, and th...

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Abstract

The invention relates to a novel oil shale dry distillation and oil refining method and a novel oil shale dry distillation and oil refining device. Firstly, the invention provides the oil shale dry distillation and oil refining method. In the method, oil shale particles with granularity less than 15mm are used as raw materials; and high temperature flue gas generated by burning semicoke and/or dry distillation gas is utilized to indirectly heat the oil shale particles so as to realize dry distillation of oil shale. The invention also provides the novel oil shale dry distillation and oil refining device for the oil shale dry distillation and oil refining method. Due to the adoption of the oil shale dry distillation and oil refining method and the oil shale dry distillation and oil refiningdevice, which are provided by the invention, high shale oil yield can be obtained, recycling of various products can also be realized, the burning utilization effect of the semicoke is high, and the utilization rate of the oil shale can reach 100 percent. The oil shale dry distillation and oil refining method and the oil shale dry distillation and oil refining device are not only beneficial for improving the economic benefits, but also are beneficial for protecting the environment.

Description

technical field [0001] The invention relates to an oil shale carbonization refining method and device, belonging to the technical field of petroleum processing. Background technique [0002] Oil shale, also known as kerogen shale, is a sedimentary rock containing organic matter (usually about 15%-50%), generally belonging to sapropel peat with high mineral content, and is a solid fossil fuel with low calorific value, and its color is light gray to dark brown. The organic matter contained in oil shale is a polymer insoluble in organic solvents, called kerogen or kerogen. The inorganic minerals of oil shale mainly include quartz, kaolin, clay, mica, carbonate rock and pyrite. The content of inorganic minerals in oil shale usually accounts for about 50%-85%, which is higher than its organic content. Oil shale is an important raw material for "artificial petroleum", that is, "synthetic liquid fuel (synfuel). Retort gas and shale semi-coke. Shale oil is used as fuel oil and ...

Claims

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Application Information

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IPC IPC(8): C10B53/06C10B57/10C10B47/00C10B57/00
Inventor 李术元何继来唐勋王勇马跃
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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