Process and plant for urea production

US8263805B2 · kind B2 · utility

Assignee

• Urea Casale SA · CH

Inventors

• Federico Zardi · Breganzona, CH
• Sergio Debernardi · Carabbia, CH

Key dates

• Filing date: Oct 4, 2007
• Grant date: Sep 11, 2012
• Expiry date: Oct 17, 2027

Classification

• Technology area (CPC —): General

Abstract

A process for producing urea is disclosed, wherein liquid ammonia and carbon dioxide are reacted in a high-pressure synthesis section (100), and at least part of the carbon dioxide is fed to said synthesis section (100) in liquid phase. A plant operating according to said process and a method for modernizing existing plants accordingly are also disclosed.