Method for coating porous catalyst support and device therefor

Patent metadata

Field	Value
Publication number	US-11813599-B2
Application number	US-201917283583-A
Country	US
Kind code	B2
Filing date	Oct 4, 2019
Priority date	Oct 12, 2018
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A method for coating a monolithic porous catalyst support having a plurality of channels formed in a longitudinal direction with a catalyst slurry, and a device therefor are proposed. A pressure dispersion coating device for a porous catalyst support includes: a slurry quantitative input means; a container being variable in volume, having an open upper part thereof into which a slurry is input by the slurry quantitative input means, and having a bottom thereof movable; a container moving means fastened to one side of the container; a moving means fastened to a lower part of the container and having a shaft connected to the bottom of the container; an overflow outlet being formed on a side part of the container and provided with a valve; and a pressurizing means disposed on the open upper part of the container.

First claim

The invention claimed is:

1. A method for coating a monolithic porous catalyst support having a plurality of channels formed in a longitudinal direction with a catalyst slurry, the coating method comprising:
inputting the catalyst slurry into a container having a bottom thereof moved up and down;
moving a lower end of the catalyst support and an upper end of the container to be horizontally leveled;
sealing the lower end of the catalyst support and the upper end of the container from outside; and
applying a positive pressure at an upper end of the catalyst support while moving the bottom of the container upward.

2. The coating method of claim 1 , further comprising:
moving the bottom of the container downward after the applying of the positive pressure; and
removing the slurry that is residual inside the porous catalyst support by air blowing at the upper end of the catalyst support.

3. The coating method of claim 2 , further comprising:
releasing a seal of the lower end of the catalyst support and the upper end of the container; and
moving the container downward.

4. The coating method of claim 3 , further comprising:
drying a coated catalyst support; and
calcinating the coated catalyst support.

Assignees

• Heesung Catalysts Corp

Inventors

• Han Hyun-Sik
• Seo Dong-Sun
• Seon Myeong-Cheol
• Yu Seung-Bok

Classifications

• B05C7/04 Primary

  the liquid or other fluent material flowing or being moved through the work; the work being filled with liquid or other fluent material and emptied · CPC title

• B01J35/56

  Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths · CPC title

• B01J37/0236

  Drying, e.g. preparing a suspension, adding a soluble salt and drying · CPC title

• B01J37/06

  Washing {(B01J37/0009, B01J37/0018 take precedence)} · CPC title

• B01J37/0215 Primary

  Coating · CPC title