Distillate oil hydrogen refining catalyst

A hydrorefining and catalyst technology, applied in the field of monoolefins, can solve problems such as olefin loss, and achieve the effects of reducing olefin saturation, reducing loss, and improving dispersion

Active Publication Date: 2010-08-25
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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  • Distillate oil hydrogen refining catalyst
  • Distillate oil hydrogen refining catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 1000g of pseudo-boehmite dry powder, add 25g of acetic acid, 21g of citric acid, 25g of scallop powder and 600ml of deionized water, knead and extrude into strips. Dry at 110°C for 4 hours, and bake at 850°C for 4 hours to obtain carrier z1.

Embodiment 2

[0022] Take 1000g of pseudo-boehmite, add 25g of acetic acid, 25g of citric acid, 25g of turnip powder, 18g of orthophosphoric acid and 700ml of deionized water, mix and extrude into strips. Dry at 110°C for 4 hours, and bake at 850°C for 4 hours to obtain carrier z2.

Embodiment 3

[0024] Take 800g of pseudo-boehmite dry powder, 240g of magnesium carbonate dry mix evenly, add 25g of acetic acid, 21g of citric acid, 25g of scallop powder and 600ml of deionized water, mix and extrude to form. Dry at 110°C for 4 hours, and bake at 960°C for 4 hours to obtain carrier z3.

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Abstract

The invention relates to a distillate oil hydrogen refining catalyst. In the catalyst, theta alumina is used as a vector, Mo and Ni are used as active components, and alkali metal or alkali-earth and P are used as auxiliary agents. The catalyst comprises the following components in percentage by mass: 2 to 8 percent of the alkali metal or alkali-earth metal, 10 to 19 percent of MoO3, 4.5 to 7 percent of NiO, 1.5 to 4 percent of P, and the balance of the alumina vector. The catalyst is used as the catalyst of light distillate oil hydrogen process with boiling range less than 220 DEG C, so that monoolefine in the distillate oil can be furthest maintained while sulfur in the distillate oil is removed. V to V is equal to 3 (catalytic gasoline) to 1 (coker gasoline) by evaluating raw oil, wherein the sulfur content is 520 mu g.g-1, and bromine number is 73.32g Br / 100g Oil; and the reaction condition is that the temperature is between 200 and 260 DEG C, the pressure is 4.0MPa, the liquid space velocity is 2.5h-1, the volume ratio of hydrogen to oil is 250 to 1, the highest desulfurization rate is 93.2 percent, and the olefin loss rate is no more than 10 percent.

Description

technical field [0001] The invention relates to a distillate oil hydrotreating catalyst, which is especially suitable for the selective hydrogenation of light distillate oil to remove sulfur-containing compounds while maximally retaining monoolefins in the components. Background technique [0002] In recent years, in order to protect the environment, governments around the world have made great efforts to reduce the emission of harmful substances in the exhaust of internal combustion engines. The quality specifications of motor fuels have become increasingly stringent, especially requiring the reduction of sulfur content in automotive oils. SOx, the combustion product of sulfide in oil, is one of the main harmful substances in automobile exhaust, and it is also one of the poisoning factors of automobile exhaust conversion catalyst. Therefore, countries all over the world have legislated to strictly limit the sulfur content in oil products. Although the traditional HDS metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/19C10G45/08
Inventor 曾佑富谭振明邹士应廖斌晁会霞
Owner PETROCHINA CO LTD
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