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Method for charging boiling bed catalyst on line

A catalyst and ebullating bed technology, applied in the field of ebullating bed catalyst online filling, can solve the problems of no catalyst wetting and vulcanization treatment, and achieve the effects of simplified operation, convenient treatment and wide sources

Inactive Publication Date: 2012-01-11
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

There is also no wetting and sulfurization of the catalyst

Method used

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  • Method for charging boiling bed catalyst on line
  • Method for charging boiling bed catalyst on line

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Embodiment 1

[0039] Catalyst online filling method reference in embodiment 1 figure 1 . Among them, vulcanization conditions, wax oil space velocity 1.2h -1 , the volume ratio of hydrogen to oil is 600:1, vulcanize at a constant temperature of 270°C for 6h, then raise the temperature of the catalyst filling tank to 320°C and vulcanize at a constant temperature for 6h, after the vulcanization is completed, raise the temperature of the catalyst filling tank to 385°C, and the pressure to 15.5MPa, Open the pipeline for online filling. Catalyst filling frequency is 1kg catalyst / t heavy oil raw material.

[0040] The catalyst is a presulfided catalyst, and the composition is that the active metal is Mo-Ni, where Mo is MoO 3 The content of Ni is 13.62%, and the NiO content is 2.83%. The particle size of the catalyst is 0.2mm, and the bulk density is 0.60g cm -3 , the specific surface area is 260m 2 / g, the average pore diameter is 15nm.

[0041] The operating conditions of the ebullated be...

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Abstract

The invention relates to a method for charging a boiling bed catalyst on line. In the method, a catalyst charging tank is set into a vulcanizing bed; and wax oil is produced by system recycle hydrogen and a device. The method comprises the following steps of: firstly, washing, moistening and vulcanizing the boiling bed catalyst to be added; and then under the action of a pressure difference of the catalyst charging tank and a reactor, conveying of the wax oil and the gravity, charging the required catalyst into the reactor. Compared with the prior art, the method has the advantages that the investment can be reduced and the operation can be simplified; meanwhile, the wax oil is used as vulcanized oil of the boiling bed catalyst, has wide sources and is convenient to process, and the possibility of adopting residual oil or heavy oil raw materials to coke on a pipeline is reduced; and before charging, a temperature of the catalyst is risen to a temperature of the reactor, so that the perturbation of on-line charging on a reaction temperature of a boiling bed and the influence of operation instability of the device on the product quality in the prior art are reduced. The method for charging the catalyst on line, which is disclosed by the invention, is particularly suitable for a hydrogenation process of the boiling bed.

Description

technical field [0001] The invention relates to an online filling method of an ebullated bed catalyst. Background technique [0002] With the vigorous development of heavy crude oil and the changes in the demand structure of petroleum products worldwide, the market demand for light fuel oil continues to grow rapidly and the demand for heavy fuel oil decreases rapidly. The advanced processing technology of heavy and residual oil has become a The focus of refinery industry development. Ebullating bed residual oil hydrogenation technology has good back-mixing characteristics, easy to control reaction temperature, adapt to different raw materials, wide adaptability to raw oil, constant catalyst activity, online replacement of catalyst, constant pressure drop, reactor Uniform internal temperature, good mass and heat transfer, long operation period, high conversion rate of residual oil, high utilization rate of catalyst, flexible operation of the device, and low investment. [0...

Claims

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Application Information

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IPC IPC(8): B01J3/02B01J8/00
Inventor 刘建锟杨涛胡长禄蒋立敬唐军王筱喃
Owner CHINA PETROLEUM & CHEM CORP
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