Hydrofining catalyst for Fischer-Tropsch oil and preparation method thereof

A hydrofining and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as uneconomical, high value-added hydrogen consumption, and reduced yield of target products

Active Publication Date: 2014-08-06
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Decarboxylation / decarbonylation reactions have the advantage of lower hydrogen consumption compared to hydrodeoxygenation reactions that generate water, but due to the 2 loss of one carbon atom in the form of
In addition, the decarboxylation / decarbonylation reaction produces carbon oxides, and its subsequent reactions, such as methanation, consume more hydrogen. These subsequent reactions do not have high added value but lead to increased hydrogen consumption, which is not economically cost-effective

Method used

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  • Hydrofining catalyst for Fischer-Tropsch oil and preparation method thereof
  • Hydrofining catalyst for Fischer-Tropsch oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] (1) Weigh 16 grams of magnesium nitrate (Mg(NO 3 ) 2 ˙6H 2 O) Add an appropriate amount of deionized water to prepare a magnesium-containing aqueous solution, and soak into 100 g of Al prepared by the method A above 2 O 3 On the porous carrier Z, the immersion time is 2 hours, after immersion, it is dried overnight, and dried at 120°C for 4 hours, and then calcined at 500°C for 4 hours to obtain Al containing MgO 2 O 3 Porous support Z-1.

[0108] (2) Weigh 2.43 grams of phosphoric acid with a purity of 85% and add it to an appropriate amount of deionized water, and then add 20 grams of molybdenum trioxide and 4.36 grams of basic nickel carbonate (NiCO 3 ˙2Ni(OH) 2 ˙4H 2 O), heat to a slight boiling, and continue heating until the precipitate is completely dissolved, soak it to 75.91 g of the above Al 2 O 3 On the porous carrier Z-1, immerse at room temperature for 2 hours, dry, and calcinate at 500°C for 4 hours to obtain Al 2 O 3 Porous carrier supports MgO, MoO 3 , P 2 O 5...

Embodiment 2

[0110] (1) Repeat the process of step (1) in Example 1;

[0111] (2) Weigh 2.43 grams of phosphoric acid with a purity of 85% and add it to an appropriate amount of deionized water, and then add 20 grams of molybdenum trioxide and 3.15 grams of basic nickel carbonate (NiCO 3 ˙2Ni(OH) 2 ˙4H 2 O), heat to a slight boiling, and continue to heat until the precipitate is completely dissolved, soak it to 76.63 grams of the above Al 2 O 3 On the porous carrier Z-1, immerse at room temperature for 2 hours, dry, and calcinate at 500°C for 4 hours to obtain Al 2 O 3 Porous carrier supports MgO, MoO 3 , P 2 O 5 And NiO catalyst C-2;

Embodiment 3

[0113] (1) Repeat the process of step (1) in Example 1;

[0114] (2) Weigh 2.43 grams of phosphoric acid with a purity of 85% and add it to an appropriate amount of deionized water, and then add 20 grams of molybdenum trioxide and 1.94 grams of basic nickel carbonate (NiCO 3 ˙2Ni(OH) 2 ˙4H 2 O), heat to a slight boiling, and continue heating until the precipitate is completely dissolved, soak it to 77.35 grams of the above Al 2 O 3 On the porous carrier Z-1, immerse at room temperature for 2 hours, dry, and calcinate at 500°C for 4 hours to obtain Al 2 O 3 Porous carrier supports MgO, MoO 3 , P 2 O 5 And NiO catalyst C-3.

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Abstract

The invention discloses a hydrofining catalyst for Fischer-Tropsch oil and a preparation method thereof. The catalyst comprises, by weight, 10 to 40 parts of catalyst active components--(M1)AOB and (M2)COD, 0.05 to 10 parts of a catalyst assistant--(M3)EOF and 0 to 40 parts of a carrier modifier--(M4)GOH, with the balance being a porous carrier--Al2O3, wherein M1 is at least one group-VIII element, M2 is at least one group-VIB element, M3 is at least one group-IA element and/or a group-IIA element, M4 is Ce, Zr, Ti and/or Si, and the atomic ratio (mol ratio) of M1/(M1+M2) is greater than 0.05 but less than 0.30. The catalyst provided by the invention can maintain high olefin saturation and hydrodeoxygenation activity and restrict formation of oxycarbide by restricting decarboxylation and/or decarbonylation, so problems caused by formation of oxycarbide are restricted and hydrodeoxygenation selectivity is optimized.

Description

Technical field [0001] The invention relates to a Fischer-Tropsch oil hydrorefining catalyst and a preparation method thereof, in particular to a Fischer-Tropsch oil hydrogenation which has higher olefin saturation and hydrodeoxygenation activity and can limit decarboxylation and / or decarbonylation reactions Refined catalyst and its preparation method. Background technique [0002] Fischer-Tropsch synthetic oil has the characteristics of extremely low content of non-ideal components such as sulfur and nitrogen, low content of naphthenic and aromatic hydrocarbons, and the main composition of chain hydrocarbons. Therefore, the synthetic oil obtained by using Fischer-Tropsch synthesis technology is quite different from conventional mineral oil in terms of hydrocarbon composition and main properties. [0003] Generally, in Fischer-Tropsch synthetic oil, the lighter the distillate, the higher the content of olefins and oxides in the oil, and the lower the content of alkanes. The Fisch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/19B01J27/188C10G45/08
Inventor 李丽金环年胡云剑马辉
Owner CHNA ENERGY INVESTMENT CORP LTD
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