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Preparation method of catalyst for deep hydrogenation treatment of high-nitrogen distillate oil

A deep hydrogenation and catalyst technology, which is applied in the direction of molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems affecting the oxidation stability of diesel oil and cannot meet the requirements of ultra-deep hydrotreating of distillate oil, and achieve the goal of preparing The effect of simple method

Inactive Publication Date: 2012-02-08
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned catalysts modify the carrier, and have higher hydrogenation activity for general low-nitrogen and high-sulfur distillate oils, but for high-nitrogen distillate oils (N content > 1500 μg / g) generally obtained from marine crude oil processing, they cannot meet the requirements for distillate oils. Requirements for ultra-deep hydrofining
When the above catalysts hydrotreat high-nitrogen distillate oil, harsh hydrogenation conditions are required to reduce the sulfur content in the resulting oil to a low level, but the nitrogen in the resulting oil remains at a relatively high level, which affects the performance of diesel oil. Oxidation stability

Method used

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  • Preparation method of catalyst for deep hydrogenation treatment of high-nitrogen distillate oil
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  • Preparation method of catalyst for deep hydrogenation treatment of high-nitrogen distillate oil

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Experimental program
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Effect test

Embodiment 1

[0034] Take by weighing 180 grams (by weight on a dry basis) of macroporous hydrated alumina (product of Shandong Aluminum Industry Company, wherein the gibbsite content is 80% by weight) prepared by the aluminum sulfate-carbon dioxide precipitation method, and 20 grams (by weight on a dry basis) By weight) HY zeolite (produced by Catalyst Factory of Nankai University, SiO 2 / Al 2 o 3 The mol ratio is 4.8, and the crystallinity is 78%), 100 grams of 30% silica sol (Qingdao Ocean Chemical Co., Ltd., brand JN-30), mix well, add extrusion aid (squat powder) 5.0 grams respectively, viscous 3.0 milliliters of binder (nitric acid (chemically pure)) and 180 milliliters of water were extruded into a cylindrical strip with an outer diameter of 1.6 mm, dried at 120°C for 12 hours, and calcined at 500°C for 3 hours to obtain the catalyst carrier Z1.

Embodiment 2

[0036] Take by weighing 40 grams (by weight on a dry basis) of the hydrated alumina (trade name SB powder, German Condea company product, wherein gibbsite content 85% by weight) and 130 grams of the hydrated aluminum oxide prepared by the hydrolysis method of alkoxy aluminum and 130 grams of Example 1 The same macroporous hydrated alumina, and 30 grams (by weight on a dry basis) HY zeolite (produced by Nankai University Catalyst Factory, SiO 2 / Al 2 o 3 The molar ratio is 4.8, and the crystallinity is 78%), 120 grams of 30% silica sol (Qingdao Ocean Chemical Co., Ltd., trade mark JN-30), mix well, add extrusion aid (seed green powder) 5.0 grams, binding agent respectively (Nitric acid (chemically pure)) 2.0 milliliters and 120 milliliters of water, extruded into a cylindrical strip with an outer diameter of 1.6 mm, dried at 120°C for 12 hours, and calcined at 500°C for 4 hours to obtain the catalyst carrier Z2.

Embodiment 3

[0038] Take by weighing 160 grams (by weight on a dry basis) with macroporous hydrated alumina (Wenzhou Jingjing Alumina Factory, brand 420, wherein the gibbsite content is 75% by weight), and 40 grams (by weight on a dry basis) of HUSY Zeolite (produced by Zhoucun Catalyst Factory, SiO 2 / Al 2 o 3The molar ratio is 5.0, and the crystallinity is 68%), 120 grams of 30% silica sol (Qingdao Ocean Chemical Co., Ltd., brand JN-30), mix uniformly, add 5.0 grams of extrusion aid (sweet green powder), binder (Nitric acid (chemically pure)) 2.0 ml and 120 ml of water, extruded into clover strips with a diameter of 1.6 mm, dried at 120° C. for 12 hours, and calcined at 500° C. for 4 hours to obtain the catalyst carrier Z3.

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Abstract

The invention is a preparation method of a catalyst for deep hydrogenation treatment of high-nitrogen distillate oil, which is applicable to a deep hydrogenation refining process of distillate oil, and is especially applicable to deep hydrofining of inferior diesel oil (such as high-nitrogen naphthenic straight-run diesel oil, coking diesel oil, catalytic cracking diesel oil, or a mixture of the above diesel oil); the refined diesel oil can be used as a blending component for high-quality diesel oil. The catalyst for hydrogenation refining of the invention comprises the following active components of a carrier, phosphor, nickel, molybdenum and the like, wherein the carrier is obtained by mixing diaspore which is prepared by hydrolyzation of alkylaluminium or alkoxyl aluminium and has purity of above 70%, zeolite, and silicasol, and performing high-temperature roasting; the contents of the components of the catalyst (on a basis of the catalyst) are 2.5-8.0 wt% of nickel oxide, 18-25% of molybdenum oxide, 4.0-6.5 wt% of phosphor, 8.0-15.0 wt% of silica, and the balance of alumina.

Description

technical field [0001] The invention relates to the technical field of petrochemical catalysts, and relates to a preparation method of a high-nitrogen distillate deep hydrotreating catalyst, which is a preparation process of a high-nitrogen distillate deep hydrotreating catalyst containing nickel, molybdenum and phosphorus. Specifically, it relates to a preparation method of a catalyst for deep hydrotreating of high-nitrogen distillate oil containing nickel, molybdenum and phosphorus, which is supported by alumina, zeolite and silicon oxide. Background technique [0002] Distillate oil hydrotreating catalysts are generally composed of metals or metal oxides with hydrogenation function and supports and additives with certain acidic functions. The commonly used metal components are cobalt-molybdenum, nickel-molybdenum or nickel-tungsten, and recently There are more and more hydrogenation catalysts using nickel-molybdenum and nickel-tungsten as active components. Diesel oil, esp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/16C10G49/08C10G45/12
Inventor 于海斌南军刘红光张景成耿姗曲晓龙张玉婷刘新普刘晨光柴永明
Owner CHINA NAT OFFSHORE OIL CORP