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Catalyst for poor diesel hydrotreatment and preparation method

A technology for hydrogenation catalyst and inferior diesel oil, applied in refining to remove heteroatoms, etc., can solve problems such as olefin loss, achieve high desulfurization, prevent alkali metal loss, and improve dispersion effects

Active Publication Date: 2013-04-24
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still considerable loss of olefins

Method used

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  • Catalyst for poor diesel hydrotreatment and preparation method
  • Catalyst for poor diesel hydrotreatment and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 50g of silica sol, 950g of alumina dry gel, add 42g of acetic acid, 25g of citric acid, 25g of scallop powder and 700ml of deionized water, knead and extrude to form. Dry at 110°C for 4 hours, and bake at 550°C for 3 hours to obtain carrier Z1.

Embodiment 2

[0020] Weigh 75g of silica sol, 925g of alumina dry glue, add 42g of acetic acid, 25g of citric acid, 25g of scallop powder and 700ml of deionized water, knead and extrude into strips. Dry at 110°C for 4 hours, and bake at 550°C for 3 hours to obtain carrier Z2.

Embodiment 3

[0022] Weigh 100g of silica sol, 900g of alumina dry glue, add 42g of acetic acid, 25g of citric acid, 25g of scallop powder and 700ml of deionized water, knead and extrude into strips. Dry at 110°C for 4 hours, and bake at 550°C for 3 hours to obtain carrier Z3.

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PUM

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Abstract

The invention relates to a catalyst for poor diesel hydrotreatment and a preparation method. In the catalyst, W-Mo-Ni-P is used as an active component; alkali metal, alkaline earth metal or rare-earth metal is used as an auxiliary; silicon-aluminum is used as a carrier; according to weight percentage, the alkali metal, alkaline earth metal or rare-earth metal accounts for 2 to 9 percent, WO3 accounts for 5 to 25 percent, MoO3 accounts for 8 to 20 percent, NiO accounts for 2 to 9 percent, P accounts for 1.0 to 5 percent, and the balance is the silicon-aluminum oxide carrier. The catalyst is used for evaluating mixed oil with raw material oils of catalytic cracking diesel and coked diesel, performs excellent reaction activity and stability in condition and stability tests, and can remove more than 90 percent of sulfur and nitrogen in the poor mixed diesel.

Description

technical field [0001] The invention discloses a low-quality diesel hydrotreating catalyst and a preparation method thereof. The catalyst is especially suitable for hydrodesulfurization and denitrogenation reactions of catalytic cracking and coking diesel oil, and can make the desulfurization and denitrification rate of low-quality mixed diesel oil reach over 90%. Background technique [0002] With the development of the world economy, the demand for various oil products continues to rise. It is estimated that the demand for world oil products will increase from 81.7 million barrels per day in 2005 to 105 million barrels per day in 2020, and the world oil The demand for products shows a trend of light weight. Although the quality of crude oil will not change much in a long period of time, in order to meet the growing demand for light oil products to produce light oil products and improve economic benefits, it is still necessary to greatly increase the secondary processing ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/19C10G45/08
Inventor 曾佑富谭振明邹士应晁会霞方义廖斌朱凌辉
Owner PETROCHINA CO LTD
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