Low temperaure catalyst for producing intermediate fraction oil with heavy alkane and its preparation method

A technology for middle distillates and heavy alkanes, applied in catalyst activation/preparation, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as high reaction temperature, high hydrothermal treatment temperature, high temperature resistance of high temperature furnace, etc., to achieve Good combustion performance, improved yield, high activity effect

Inactive Publication Date: 2003-01-08
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] EP0028938A1 discloses a medium-oil type hydrocracking catalyst for crude oil processing, which is characterized by the use of Yili Y-type zeolite, and its preparation process includes SiO 2 /Al 2 o 3 The molar ratio is 4.5-9, and the specific surface area is 350m 2 /g of raw material zeolite, hydrothermal treatment at 0.2-10 atmospheres, 725-870

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] (1) Take 500g of NaY zeolite (produced by Wenzhou Catalyst Factory) and add it to 2L of 2M NH 4 NO 3 In the solution, stir at 90℃, exchange ion for 2 hours, exchange 5 times, then filter, wash to neutrality, and dry to obtain NH 4 Y zeolite;

[0027] (2) Ni(NO 3 ) 2 ·6H 2 174 grams of O was prepared into a 0.6mol / L solution, and ammonia was added dropwise to PH=11.

[0028] (3) NH 4 300 grams of Y zeolite was immersed in the above solution, stirred uniformly, and placed for more than 12 hours to obtain Y zeolite impregnated with hydrogenated metal;

[0029] (4) Drying the Y zeolite impregnated with hydrogenated metal at 90°C for 6 hours, and calcining at 400°C for 5 hours;

[0030] (5) Dissolve 45 g of phosphotungstic acid in 210 g of water, immerse the substance obtained in (4) in it, stir evenly, place it for more than 12 hours, and dry at 90°C for 6 hours to obtain substance A;

[0031] (6) Mix 500 grams of alumina with substance A uniformly, add nitri...

Example Embodiment

[0035] Example 2

[0036] (1) Take 500g of NaY zeolite (produced by Wenzhou Catalyst Factory) and add it to 2L of 2M NH 4 NO 3 In the solution, stir at 90°C and exchange ion for 2 hours for a total of 5 exchanges, then filter, wash until neutral, and dry.

[0037] (2) Ni(NO 3 ) 2 ·6H 2 291 g of O was prepared as a 0.8mol / L solution, and ammonia was added dropwise to form a dark blue transparent nickel-ammonia solution, pH=13.

[0038] (3) NH 4 250 grams of Y zeolite was immersed in the above solution, stirred evenly, and left for more than 12 hours.

[0039] (4) Drying at 100°C for 5 hours, and baking at 300°C for 6 hours.

[0040] (5) Dissolve 95 g of phosphotungstic acid in 450 g of water, immerse the substance obtained in (4) in it, stir evenly, and leave for more than 12 hours.

[0041] (6) Drying at 100°C for 5 hours.

[0042] (7) Mix 450 grams of alumina with the substance obtained in (6) uniformly, add nitric acid solution, and roll it for a sufficient time to form a paste,...

Example Embodiment

[0046] Example 3

[0047] (1) Take 500g of NaY zeolite (produced by Wenzhou Catalyst Factory) and add it to 2L of 2M NH 4 NO 3 In the solution, stir at 90°C and exchange ion for 2 hours for a total of 6 exchanges, then filter, wash to neutrality, and dry.

[0048] (2) Ni(NO 3 ) 2 ·6H 2 213 grams of O was prepared as a 0.67mol / L solution, and ammonia water was added dropwise to form a dark blue transparent nickel-ammonia solution, pH=12.

[0049] (3) NH 4 225 grams of Y zeolite was immersed in the above solution, stirred evenly, and left for more than 12 hours.

[0050] (4) Drying at 110°C for 4 hours, and baking at 500°C for 4 hours.

[0051] (5) Dissolve 145 g of phosphotungstic acid in 600 g of water, immerse the substance obtained in (4) in it, stir evenly, and leave for more than 12 hours.

[0052] (6) Drying at 110°C for 4 hours.

[0053] (7) Mix 400 grams of alumina with the substance obtained in (6) uniformly, add nitric acid solution, and roll it for sufficient time to for...

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Abstract

There is a kind of low temperature catalyst of mid distillate in producing heavy alkenes, its weight percentage composing is Y zeolite 20%-40%, phosphor-tungsten mixed multi-acid or silicon-tungsten mixed multi-acid 5%-20%, nickel oxide 5-10%, alumina 40-60%. The surface of catalyst 250-450m2/g, hole capacity 0.45-0.70 ml/g, TPD acidity 0.8-1.9 mmol/g. The catalyst in the invention has strong low-temperature reaction active and mid-oil selectivity to heavy alkenes, it applies to process of hydrogenation cracking which creates mid-distillate.

Description

[0001] Field: [0002] The invention belongs to a hydrocracking catalyst, in particular to a catalyst for processing heavy alkanes and producing middle distillates. Background technique: [0003] In recent years, in the face of the huge liquid fuel market brought about by economic growth and the depletion of oil resources, the deep processing of heavy alkanes in crude oil has become an important research topic. At the same time, with the maturity of coal / natural gas indirect liquefaction technology, especially the SMDS (Shell Middle Distillate Synthesis) process developed by Shell Company and the Synthol fluidized Fischer-Tropsch synthesis reactor developed by South Africa Sasol Company have achieved industrial-scale production, making coal / natural gas indirect liquefaction Liquefaction technology has become one of the most attractive approaches for liquid fuels in the post-petroleum industry era. However, the research on the deep processing of waxes produced by Fischer-Tropsc...

Claims

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Application Information

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IPC IPC(8): B01J29/08B01J37/00C10G47/02C10G57/02
Inventor 孙予罕任杰李到
Owner SYNFUELS CHINA TECH CO LTD
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