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Method for directly producing liquid hydrocarbon in coal oil-gas reservoir

A technology for oil and gas reservoirs and liquid hydrocarbons, which can be used in the preparation of liquid hydrocarbon mixtures, petroleum industry, cracking, etc., and can solve problems such as low yield of liquid hydrocarbons.

Active Publication Date: 2009-12-09
仲兴行(上海)商务服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method yields very low liquid hydrocarbons

Method used

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  • Method for directly producing liquid hydrocarbon in coal oil-gas reservoir
  • Method for directly producing liquid hydrocarbon in coal oil-gas reservoir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Pulverize raw coal A to coal powder with a particle size of 100-400 mesh, and 6 # Fuel oil is added to the mixer at a weight ratio of 0.51:1, and the oil-coal slurry is obtained after dissolving at 150°C for 12 hours. After the oil-coal slurry enters the heating furnace and is heated to 490°C, it enters the coke tower for coking reaction, and the coke generated by the reaction is deposited. In the coke tower, the coke oil gas enters the fractionation tower to be fractionated into gas and liquid hydrocarbons. The operating conditions and material balance are listed in Table 3.

[0043] As can be seen from Table 3, the yield of liquid hydrocarbons reached 48.5% by weight.

Embodiment 2

[0045] Raw coal B is pulverized into coal powder with a particle size of 100-400 mesh, and super heavy oil is added to the mixer at a weight ratio of 1.94:1, and the oil-coal slurry is obtained after dissolving at 285°C for 64 hours. The oil-coal slurry enters the heating furnace and is heated to After 510°C, it enters the coke tower for coking reaction, the coke generated by the reaction is deposited in the coke tower, and the coked oil gas enters the fractionation tower to be fractionated into gas and liquid hydrocarbons. The operating conditions and material balance are listed in Table 3.

[0046] As can be seen from Table 3, the yield of liquid hydrocarbons reached 33.3% by weight.

Embodiment 3

[0048] Crush the raw coal C into coal powder with a particle size of 100-400 mesh, and put the vacuum residue into the mixer at a weight ratio of 1.0:1, dissolve at 200°C for 24 hours to obtain an oil-coal slurry, and the oil-coal slurry enters the heating furnace for heating After reaching 500°C, it enters the coke tower for coking reaction, the coke generated by the reaction is deposited in the coke tower, and the coked oil gas enters the fractionation tower to be fractionated into gas and liquid hydrocarbons. The operating conditions and material balance are listed in Table 3.

[0049] As can be seen from Table 3, the yield of liquid hydrocarbons reached 42.0% by weight.

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Abstract

The invention relates to a method for directly producing liquid hydrocarbon in a coal oil-gas reservoir. Oil-coal-slurry is obtained by mixing coal and oil and enters a coking device for coking reaction under 480-510 DEG C so as to obtain coke, the liquid hydrocarbon and gases. Compared with the direct liquidation and the indirect liquidation of coal, the method has lower equipment investment and operation cost without consuming hydrogen and using catalyst and can obtain the liquid hydrocarbon with higher yield.

Description

technical field [0001] The invention belongs to a method for non-catalytic thermal cracking of coal in the absence of hydrogen, more specifically, a method for producing liquid hydrocarbons through coking of coal. Background technique [0002] As early as the beginning of the last century, some foreign scholars discovered the phenomenon and evidence of coal-derived oil, and people began extensive research on coal-derived oil. This research developed along two directions, namely, direct liquefaction and indirect liquefaction of coal. [0003] The direct liquefaction of coal first started in Germany and has a history of nearly a hundred years. In the 1920s, the world's first industrial-scale direct coal liquefaction plant was built. During World War II, another 11 sets of direct liquefaction production units were put into production, and the operating pressure at that time was as high as 70MPa. The 1960s was a period of great development of oil and natural gas, and the high-c...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10G9/00
Inventor 金军苏树林王好平侯创业牛嘉玉杨元一
Owner 仲兴行(上海)商务服务有限公司
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