Boiling bed hydrogenation treatment catalyst and its preparing process

Abstract

The invention relates to a boiling bed hydrogenation catalyst and a preparation method. The boiling bed hydrogenation catalyst of the invention is spherical shape which diameter is 0.1mm to 0.8mm, and has appropriate amount of additives and hydrogenation of metal components, and has reasonable hole distribution. The catalyst preparation method of the invention is spherical carrier impregnation, the process of spherical carrier preparation is following: making catalyst carrier raw material which is in appropriate temperature into appropriate size grain, then spheroidizing the grain, heating the conglobation and making them into spherical catalyst carrier. The process for making the catalyst carrier raw material into the appropriate size grain is that wet stock passes screen stencil by mechanical action and generates grain. Between the processes of the making grain and nodularization, granular material primely is placed for a period of time or operates in low-speed in nodularization device for a period of time. The catalyst of the invention appropriately conducts the boiling bed hydrogenation for heavy oil, residual oil.

Description

technical field [0001] The invention relates to a fluidized bed hydrogenation treatment catalyst and a preparation method thereof, in particular to a fluidized bed hydrogenation treatment catalyst used for heavy oil, especially residual oil with relatively high metal content, and a preparation method thereof. Background technique [0002] With the gradual reduction of petroleum resources, the increasing demand for light oil and the increasingly stringent environmental regulations, the refining industry attaches great importance to the rational use of petroleum resources, which greatly promotes the development of residual oil hydroprocessing technology. Hydrogenation and upgrading of residual oil mainly include fixed bed, moving bed and ebullating bed hydrogenation processes. Fixed bed is widely used because of its mature technology and simple operation. However, the residual oil fixed bed hydrogenation process has strict restrictions on the content of metals and residual ca...

AI Technical Summary

Problems solved by technology

In fact, this method is suitable for preparing spherical particles with a diameter of more than 2 mm, but it is difficult to prepare spherical particles smaller than 1 mm, because it is difficult to prepare rods on grooves smaller than 1 mm, and it is difficult to cut rods. The production efficiency of this method is also low. lower