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Front solvent oil hydrogenation reaction process and coal hydrogenation oil preparation reaction process combined method

A technology of hydrogenation reaction and combination method, which is applied in the petroleum industry, the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of low cracking conversion rate, unreported, small output, etc.

Inactive Publication Date: 2018-06-08
洛阳瑞华新能源技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] ④ The stable reaction process of hydrogenation solvent hydrogenation R20 is usually a process with a low cracking conversion rate. Conventional gaseous hydrocarbons such as CH 4 、C 2 、C 3 、C 4 The output is small
[0033] Method of the present invention has no report

Method used

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  • Front solvent oil hydrogenation reaction process and coal hydrogenation oil preparation reaction process combined method
  • Front solvent oil hydrogenation reaction process and coal hydrogenation oil preparation reaction process combined method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0259] The coal hydrogenation direct liquefaction process of 250 tons / hour raw coal powder adopts the combination method of the pre-solvent oil hydrogenation reaction process and the coal hydrogenation oil production reaction process of the present invention, and the operating conditions are as follows:

[0260] (1) In the oil-coal slurry preparation process M10, the hydrogen-donating solvent DS and coal powder SF are made into oil-coal slurry R10F according to a weight ratio of 1:1;

[0261] (2) In the reaction process R10 of coal hydrogenation to oil, the reaction temperature is 410-455°C, the reaction pressure is 18-20MPa, the gas-liquid volume ratio is 700-800NL / kg, and the amount of liquefaction catalyst added is 1.5% of the weight of dry coal powder ~2% by mass, ensuring that the gas phase hydrogen sulfide volume concentration in the reaction space is greater than 0.15%, and the solid concentration of the coal slurry is 45-50% by mass;

[0262] In the coal hydrogenation ...

Embodiment 2

[0278] Based on Example 1, in solvent oil hydrogenation reaction process R20, the processed hydrogen-donating hydrocarbon precursor R20F is 2 hydrogen-donating hydrocarbon precursor distillates R20F-A and distillate R20F-B, and 2 hydrogen-donating hydrocarbon precursors The boiling range and molecular structure of the two hydrocarbon streams are quite different. At this time, the asynchronous hydrogenation methods that can be used for the two hydrocarbon streams are selected from one or more of the following methods:

[0279] ①The distillate oil R20F-A is pre-hydrogenated and the pre-hydrogenated product is mixed with the distillate oil R20F-B and hydrogenated together;

[0280] ② Distillate oil R20F-A and distillate oil R20F-B are hydrogenated in parallel and the products obtained are mixed and separated together;

[0281] ③ Distillate oil R20F-A and distillate oil R20F-B are hydrogenated in parallel and the products obtained are mixed together and then hydrogenated again;

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Abstract

The invention discloses a front solvent oil hydrogenation reaction process and coal hydrogenation oil preparation reaction process combined method. Different from conventional rear online solvent oilhydrogenation reaction processes R20 using hot high-pressure separator gas, containing rich impurity components such as H2O, NH3, CO and HCL, of a coal hydrogenation oil preparation reaction product,a front solvent oil hydrogenation reaction process R20 uses new hydrogen with very low impurity concentration and / or recycling hydrogen, thereby substantially improving the gas phase composition; an R20 product R20P is separated into hot high-pressure separator gas R20P-V and hot high-pressure separator oil R20P-L, at least one part of hot high-pressure separator gas R20P-V is secondarily effectively utilized and enters a coal hydrogenation oil preparation reaction process R10, and the remaining hot high-pressure separator gas R20P-V is used as gas for hot high-pressure separator gas strippingor is mixed with a gas phase material flow based on R10P; in the process R20, low-boiling-point, high-separation-point and high-temperature separator oil and other hydrogen donor protoorganisms can be processed through mixing or combination, and the method is particularly suitable for an integrated high-pressure system comprising a large coal liquefaction process.

Description

technical field [0001] The present invention relates to the combination method of pre-solvent oil hydrogenation reaction process and coal hydrogenation oil production reaction process, and conventional post-type on-line solvent oil hydrogenation reaction process R20 uses impurity-rich components such as H 2 O, NH 3 , CO, and HCL coal hydrogenation to oil reaction products have different hot gas fractions. The pre-solvent oil hydrogenation reaction process R20 uses new hydrogen and or recycled hydrogen with extremely low impurity concentrations to greatly improve the gas phase composition. The R20 product R20P Separation into hot high-separation gas R20P-V and hot high-separation oil R20P-L, at least a part of hot high-separation gas R20P-V is used for secondary effective use in coal hydrogenation oil production reaction process R10, and the remaining hot high-separation gas is used for R20P-V It can be used as stripping gas of thermal high-separator or mixed with R10P-based g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/06C10G1/08
Inventor 何巨堂
Owner 洛阳瑞华新能源技术发展有限公司