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Hydrogenation reaction system and hydrotreatment method

A hydrogenation reaction and hydrogenation treatment technology, which is applied in the fields of hydrogenation treatment process, hydrocarbon oil treatment, petroleum industry, etc., and can solve problems such as poor flexibility

Active Publication Date: 2013-05-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the device is less flexible

Method used

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  • Hydrogenation reaction system and hydrotreatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Test device: electric heating sleeve reactor. The inner diameter of the sleeve is 12.5mm. The reactor ring / sleeve area ratio was 3:1. Independent double gas-liquid separator. 300ml of catalyst 481-2B (commercial hydrorefining catalyst developed and produced by Sinopec Fushun Petrochemical Research Institute) is loaded in the reactor ring and the sleeve, and the catalysts in the ring and the sleeve are of the same height.

[0023] Raw materials: No. 60 paraffin wax: melting point 61.4°C, color, Saybolt No. <-16, light stability No. 9, oil content 1.0% (by mass). Cut into two fractions by flash evaporation under reduced pressure. Among them, the light distillate accounts for 2 / 3 (volume), and the heavy distillate accounts for 1 / 3 (volume).

[0024] After the catalyst is vulcanized according to the start-up procedure, the reaction temperature is raised to 270° C. and the hydrogen partial pressure is 6.0 MPa.

[0025] First inject 200ml / h of light distillate into the u...

Embodiment 2

[0030] Test device: electric heating sleeve reactor. The inner diameter of the sleeve is 10mm. The reactor ring / sleeve area ratio was 5:1. Independent double high pressure separator. A diesel hydrotreating catalyst (W-Mo-Ni catalyst (WO 3 22%, MoO 3 9%, NiO 4.5%, specific surface area 150 m 2 / g, pore volume 0.31mL / g) 300ml, the catalyst inside the ring and the sleeve are of the same height.

[0031] Raw material: Straight-run diesel fraction. Property D20=0.86, distillation range 200-385℃, sulfur 14300μg / g, nitrogen 198μg / g, total aromatics 32% (volume), cetane number 56.

[0032] This raw material is cut into two fractions, so that the light and heavy fractions account for 80% and 20% of the volume respectively. Hydrogenation is carried out under the conditions of 350°C and hydrogen partial pressure of 6.0MPa.

[0033]Wherein the upper part of the reactor is injected with light distillate 240ml / h. The hydrogen injection rate is 120L / h. After the product is discha...

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Abstract

The invention relates to a hydrogenation reaction system and a hydrotreatment method. The hydrogenation reaction system comprises a reactor and a gas-liquid separator, wherein the reactor has an inner sleeve, the top of an outer cylindrical shell of the reactor is provided with a material inlet, the bottom of the outer cylindrical shell of the reactor is provided with a material outlet, the upper end of the inner sleeve of the reactor is open-ended, the lower end of the inner sleeve is provided with a material inlet and outlet which is communicated with equipment out of the reactor through a pipeline, the central part of the gas-liquid separator is provided with a post-hydrogenation reaction material inlet, the top of the gas-liquid separator is provided with a gas phase outlet, and a liquid phase outlet is arranged at the bottom of the gas-liquid separator. In the hydrotreatment method, the hydrogenation reaction system is used. According to the invention, light and heavy materials can be respectively subjected to hydrogenation when the quality of raw materials is poor, and combined hydrogenation of the raw materials can be realized when the quality of the raw materials is good so as to improve treatment capacity; treatment capacity and flexibility of equipment are improved by enhancing adaptability of the hydrogenation reaction system to raw materials from different sources.

Description

technical field [0001] The invention relates to a hydrogenation reaction system and a hydrogenation treatment method, in particular to a fixed-bed hydrogenation reaction system and a hydrogenation treatment method. Background technique [0002] In the fixed-bed hydrogenation reaction, the reaction material passes through the catalyst bed of the hydrogenation reactor and reacts with the catalyst to form a hydrogenation reaction product. If the properties of the reaction materials are different, the applicable hydrogenation reaction process conditions are also different. Especially the hydrogenation reaction of wide fraction of petroleum, because it is a multi-component complex system, when it is hydrogenated in the same reactor, its process conditions are suitable for some components, but not suitable for other components. Therefore, in general, multiple reactors need to be installed, the equipment cost is high, and the operation is relatively complicated. If one reactor is...

Claims

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Application Information

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IPC IPC(8): C10G67/00
Inventor 袁平飞王士新李殿昭
Owner CHINA PETROLEUM & CHEM CORP
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