Patent · US Expired

Hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution

US6334984B1 · kind B1 · utility

3Cited by
6References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 27, 1998
Grant dateJan 1, 2002
Priority date
Expiry dateApr 27, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/141
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution advantageously comprises a dividing baffle extending horizontally at a preset height in the reactor in which it defines a first and a second respectively lower and upper reaction space, means of collection and extraction from the reactor of a first portion of a gaseous phase comprising high pressure and temperature steam, previously fed into the first reaction space and means for feeding a second portion of the gaseous phase comprising high pressure and temperature steam to the second reaction space.

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