Patent · US Active

Device and method for dispensing catalyst pellets

US9149778B2 · kind B2 · utility

0Cited by

23References

19Claims

0Family size

Assignee

Extundo Incorporated · US

Inventors

Clifford L. Johns · Louisville, US
Munaf Chasmawala · Louisville, US
Dennis Patrick McAndrews · Jeffersonville, US

Key dates

Filing date	Mar 21, 2013
Grant date	Oct 6, 2015
Priority date	—
Expiry date	Jan 17, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2208/00752
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A device and method for dispensing catalyst pellets from a hopper to a chemical reactor. The hopper receives and holds the catalyst pellets at an elevation above the elevation of the chemical reactor. The flow of the catalyst pellets is controlled so they flow into and through a conduit in a widely spaced-apart arrangement to the chemical reactor. This controlled, spaced-apart flow is created by providing a sieve between a hopper and the conduit having openings small enough that the catalyst pellets form bridges above the openings, and then repeatedly breaking up the bridges in a controlled manner.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.