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Fluidized bed hydrogenation method

A technology of ebullating bed and hydrogenation catalyst, which is applied in chemical instruments and methods, organic compound/hydride/coordination complex catalyst, hydrocarbon oil treatment, etc. It can solve the problems of short operation period and poor adaptability of fixed bed technology to raw materials, etc. problems, to achieve the effects of easy vulcanization, low price, and improved hydrogenation activity and stability

Active Publication Date: 2015-05-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fixed bed technology has poor adaptability to raw materials and short operation period. Under the current trend of further deterioration of crude oil, it is difficult to continue to adapt to the needs of large-scale and long-term production processes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Catalyst preparation

[0040] 1. Preparation of Catalyst S-1

[0041] Weigh 1000g of ferric oxyhydroxide filter cake prepared by wet air oxidation, which contains 400g of ferric oxyhydroxide, add 80g of citric acid dissolved in 1000mL of water to it and stir to make it evenly mixed, the modification treatment time is 1h, and then filtered to obtain Modified filter cake.

[0042] Take by weighing 115g modified filter cake (wherein containing iron oxyhydroxide 40g, citric acid 8g) and 70g macroporous alumina (specific surface area 230m 2 / g, pore volume 0.91mL / g, average pore diameter 16nm), and 5g polyethylene glycol were mixed evenly and then formed into balls. mm sample as catalyst S-1.

[0043] 2. Preparation of Catalyst S-2

[0044] Other conditions are the same as S-1, except that the weight of alumina is 140g, and 15g of polyethylene glycol is prepared to obtain catalyst S-2.

[0045] 3. Preparation of Catalyst S-3

[0046] Weigh 1000g of ferric oxyhydroxide ...

Embodiment 2

[0050] Select catalyst S-3, when the reaction temperature is 420°C, the reaction pressure is 15MPa and the space velocity is 0.5h -1 Under the conditions of normal operation for 1000h, samples were taken and analyzed at different times, and the hydrogenation activity of the catalyst at different times was shown in Table 4.

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Abstract

The invention discloses a fluidized bed hydrogenation method. According to the invention, raw oil and hydrogen gas contact a fluidized bed hydrogenation catalyst, such that a hydrogenation reaction is carried out, and a reaction product is obtained. The fluidized bed hydrogenation catalyst comprises the components of ferric oxyhydroxide, macroporous alumina, organic polycarboxylic acid and a binding agent. The fluidized bed hydrogenation catalyst comprises, with the weight of the catalyst as a standard, 10-50% of ferric oxyhydroxide, 30-80% of macroporous alumina, and 1-20% of the binding agent. The content of organic polycarboxylic acid is 0.05-0.40g / g of ferric oxyhydroxide. According to the catalyst adopted by the invention, cheap ferric oxyhydroxide is adopted as an active metal component, such that the cost is low. The catalyst also has relatively high hydrogenation activity and stability.

Description

technical field [0001] The invention relates to a fluidized bed hydrogenation treatment process, which is suitable for the fluidized bed hydrogenation treatment method of heavy oil or residual oil. Background technique [0002] In recent years, crude oil has become increasingly heavy, while the market demand for middle distillate products has continued to grow, and the demand for residual oil fuel has gradually decreased. Therefore, low-value residual oil has been transformed into light oil products with higher added value (gasoline and middle distillate oil) ) is the target pursued by major refineries. Residual oil hydrogenation technology can not only remove impurities, but also produce light distillate, and increase the hydrogen content of the product, so the value of the product is high. At the same time, it can reduce refinery emissions and improve the environmental performance of products, so residue hydrogenation technology has developed rapidly. [0003] According ...

Claims

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Application Information

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IPC IPC(8): C10G49/02C10G49/16B01J31/28
Inventor 朱慧红孙素华刘杰金浩杨光彭绍忠蒋立敬
Owner CHINA PETROLEUM & CHEM CORP
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