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Magnetic scraper loop reactor for coal direct liquefaction and coal direct liquefaction method thereof

A loop reactor and direct coal liquefaction technology, which is applied in the preparation of liquid hydrocarbon mixtures and the petroleum industry, can solve problems such as long-term stable operation, harsh operating conditions, and wear of circulating pumps, and achieve novel and unique structures and high working atmosphere. The effect of improving and improving the hydrogen supply performance

Inactive Publication Date: 2007-09-19
CHINA COAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The forced circulation suspended bed reactor mainly relies on an external circulating pump to achieve the purpose of circulating and fully mixing the reaction materials. Since the circulating pump operates under high temperature and high pressure, the operating conditions are harsh, and the cost and risk of maintaining stable operation are high. Due to The solid content of the processed material is high, the circulation pump wears seriously, and it is difficult to run stably for a long time

Method used

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  • Magnetic scraper loop reactor for coal direct liquefaction and coal direct liquefaction method thereof
  • Magnetic scraper loop reactor for coal direct liquefaction and coal direct liquefaction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] For the gas-liquid system, atmospheric pressure air is used as the gas medium, and the liquid phase medium is distilled water-Span system. Its density and viscosity are basically consistent with the properties of oil-coal slurry under actual reaction conditions. The experimental reactors are bubbling bed liquefaction reaction. reactor and magnetic scraper loop reactor. Among them, the inner diameter of the outer cylinder of the bubbling bed liquefaction reactor is 0.07m, the total height of the reactor is 2.0m, the reactor has a flat bottom, no central tube, the distributor is an empty tube with an inner diameter of 6mm, and the outlet plane of the distributor is flush with the bottom surface. The outer diameter of the magnetic scraper loop reactor is 0.07m, the inner diameter of the central tube is 0.045m, the wall thickness is 5mm, the total height of the reactor is 2.0m, the reactor has a flat bottom, the height of the central tube is 1.8m, and the height from the bot...

Embodiment 2

[0027] For the gas-liquid system, atmospheric pressure air is used as the gas medium, and the liquid phase medium is distilled water-Span system. Its density and viscosity are basically consistent with the properties of oil-coal slurry under actual reaction conditions. The experimental reactors are bubbling bed liquefaction reaction. reactor and magnetic scraper loop reactor. Among them, the inner diameter of the outer cylinder of the bubbling bed liquefaction reactor is 0.07m, and the total height of the reactor is 2.0m. flush. Add a small amount of viscous oil that is easy to adhere to the inner wall of the outer cylinder into the liquid phase system.

[0028] The diameter of the outer cylinder 1 of the circulation reactor with a magnetic scraper (as shown in Figure 1) is 0.07m, the inner diameter of the center pipe 4 is 0.045m, the wall thickness is 5mm, the total height of the reactor is 2.0m, the reactor is flat bottom, and the height of the center pipe is 1.8m , the heig...

Embodiment 3

[0031] In the experiment, the liquefaction results of a young bituminous coal in the same first-stage countercurrent reactor and second-stage magnetic scraper loop reactor and online hydrogenation reactor connected in series as in Example 1 were compared with a young bituminous coal in two The liquefaction results of the traditional coal liquefaction process with four bubbling bed reactors in series are listed in Table 1.

[0032] countercurrent reactor

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Abstract

The related loop reactor for coal direct liquefaction comprises: an outside cylinder, a central tube, a gas distributor, a plurality of magnetic scrapers arranged equally between the cylinder and tube, a magnetic draw device, and a device frame. This invention improves material loop speed and turbulence strength to avoid coking and raise heat / mass transfer efficiency for wide application.

Description

technical field [0001] The invention relates to the field of coal direct liquefaction, in particular to a coal direct liquefaction magnetic scraper circulation reactor and a coal direct liquefaction method thereof. Background technique [0002] The world's three basic energy sources come from solid fossil fuels coal, oil and natural gas. Coal is the most abundant solid fossil fuel in the world. It is distributed in countries all over the world, such as China, North America, Australia, South Africa, Russia, Europe, etc. There are a lot of storage and mining. However, people have always used solid raw coal as fuel and rarely processed it. Refining, the main reason is that coal is solid, unlike oil and natural gas, which are not easy to process, refine and transport; raw coal contains a lot of impurities such as sulfur and nitrogen, and when it is used as fuel in the form of raw coal, it will produce a lot of harmful gases and impurities, polluting the environment , causing la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/06
Inventor 毛在砂李克健禹耕之霍卫东杨超史士东张广积李文博
Owner CHINA COAL RES INST
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