A kind of oil hydrogenation catalyst preparation and catalyst and application

A technology for oil hydrogenation and catalyst, applied in the direction of organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, chemical instrument and method, etc., can solve the problem that the selectivity and yield of target products are reduced and the probability is increased , the probability of cracking at the insertion end, etc., to achieve the effect of improving freezing point, high isomer selectivity, and increasing diesel content

Active Publication Date: 2019-12-10
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] 4. Molecular sieve micropores with suitable depth: The hydroisomerization of linear alkanes is mainly carried out at the molecular sieve micropore openings. If the molecular sieve micropore channels are too deep, the probability of linear alkanes completely or mostly inserting into the micropore channels increases. The desorption is hindered, which increases the probability of cracking at the insertion end, which makes it easy to generate small molecular hydrocarbons, which reduces the selectivity and yield of the target product

Method used

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  • A kind of oil hydrogenation catalyst preparation and catalyst and application
  • A kind of oil hydrogenation catalyst preparation and catalyst and application

Examples

Experimental program
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Effect test

Embodiment 1

[0070] Take 120 g of the original powder of SAPO-11 molecular sieve containing the template agent, calcinate it in an air atmosphere of 550 ° C for 24 hours, and obtain 100 g of SAPO-11 molecular sieve with the template agent completely removed; take 30 g of pseudo-boehmite (alumina hydrate) with it Mix well, add 80g 5wt% HNO 3 The solution, kneaded, formed with an extruder, dried naturally, dried at 120 °C for 4 hours, and calcined at 550 °C for 12 hours to obtain a carrier precursor; 100 mL of furfuryl alcohol and 100 mL of ethanol were mixed at 25 °C and stirred well, and 1 g of oxalic acid was added to it. , after complete dissolution, a monomer solution was obtained; 50g of the carrier precursor was mixed with 50g of the monomer solution, placed at 25°C for 6h, filtered to obtain the carrier precursor for adsorbing the monomer solution, and dried at 120°C for 0.5h (while drying, The polymer monomer furfuryl alcohol adsorbed by the carrier precursor spontaneously undergoes...

Embodiment 2

[0072] Take 120 g of the original powder of SAPO-11 molecular sieve containing the template agent, calcinate it in an air atmosphere of 550 ° C for 24 hours, and obtain 100 g of SAPO-11 molecular sieve with the template agent completely removed; take 30 g of pseudo-boehmite (alumina hydrate) with it Mix well, add 80g 5wt% HNO 3 The solution, kneaded, formed with an extruder, dried naturally, dried at 120 °C for 4 hours, and calcined at 550 °C for 12 hours to obtain a carrier precursor; 100 mL of furfural and 100 mL of ethanol were mixed at 25 °C and stirred well, and 1 g of oxalic acid was added to it. , after complete dissolution, a monomer solution was obtained; 50g of the carrier precursor was mixed with 50g of the monomer solution, placed at 25°C for 6h, filtered to obtain the carrier precursor for adsorbing the monomer solution, and dried at 120°C for 0.5h (while drying, The polymer monomer furfural adsorbed by the carrier precursor spontaneously undergoes a polycondensat...

Embodiment 3

[0074] Take 120g of the original powder of SAPO-11 molecular sieve containing the template agent, calcinate it in an air atmosphere of 550 ° C for 24h, to obtain 100g of SAPO-11 molecular sieve with the template agent completely removed; take 20g of pseudo-boehmite (alumina hydrate) with it Mix well, add 80g 5wt% HNO 3 The solution, kneaded, formed with an extruder, dried naturally, dried at 120 °C for 4 hours, and calcined at 550 °C for 12 hours to obtain a carrier precursor; 100 mL of furfural and 50 mL of ethanol were mixed at 25 °C and stirred well, and 5 mL of concentrated After the hydrochloric acid was completely dissolved, a monomer solution was obtained; 50 g of the carrier precursor was mixed with 50 g of the monomer solution, placed at 25 °C for 6 h, filtered to obtain the carrier precursor for adsorbing the monomer solution, and dried at 120 °C for 0.5 h (while drying , the polymer monomer furfural adsorbed by the carrier precursor spontaneously undergoes a polycon...

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Abstract

The invention relates to a method for preparing a catalyst for hydrogenation of fats and oils to prepare liquid fuels. The specific preparation steps are as follows: first, the roasted SAPO‑11 molecular sieve and the precursor of the amorphous oxide are mixed, extruded, shaped and roasted to form a carrier precursor; the monomer molecules of the polymer are filled in the carrier precursor Then carry out temperature rise treatment to obtain a carrier in which the acid sites of the molecular sieve are partially covered and the pores are partially blocked; the metal active component is loaded on the carrier, and the target catalyst is obtained after drying and reduction. Compared with the catalyst prepared in the prior art, the catalyst prepared by the method of the invention has higher isoparaffin selectivity and yield in the process of oil hydrogenation to liquid fuel.

Description

technical field [0001] The invention belongs to the field of molecular sieve catalysts, in particular to a grease hydrogenation catalyst based on SAPO-11 molecular sieve and a preparation method thereof. Background technique [0002] With the continuous development of the economy and society, the reduction of one-time energy such as oil and coal has brought about the problem of energy shortage. The prices of crude oil and coal have been rising in recent years, which also has an impact on the price of motor fuel. In addition, since petroleum and coal are both carbon-containing resources and contain elements such as nitrogen and sulfur, carbon dioxide and toxic gases that are harmful to the environment are inevitably generated during their conversion and the use of their products. Based on this, and also due to political and economic factors, some countries have introduced relevant policies to restrict the use of fossil energy products. For example, the European Union introdu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/28C10G3/00
CPCB01J31/28C10G3/49C10G2300/1014C10G2300/1018C10G2300/70Y02P30/20
Inventor 王从新田志坚曲炜马怀军李鹏王琳韩健强
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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