Patent · US Active

Method for load regulation of an ammonia plant

US9463983B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

Casale SA · CH

Inventors

Raffaele Ostuni · Lugano, CH
Federico Zardi · Breganzona, CH

Key dates

Filing date	Sep 25, 2012
Grant date	Oct 11, 2016
Priority date	—
Expiry date	Oct 11, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for regulation of an ammonia plant where a purge gas (10) containing inerts is extracted from ammonia synthesis loop (SL), and where the ammonia plant is operated at a partial load by keeping the ammonia synthesis loop at a nominal high pressure, and reducing the purge rate in order to increase concentration of inerts in the ammonia synthesis loop and avoid overheating of the ammonia reactor; preferably a water electrolysis section (WE) produces a hydrogen feed (3) and an air separator produces a nitrogen feed (4); hydrogen and nitrogen are mixed to form a make up gas (5) which is reacted at a high-pressure in said ammonia synthesis loop (SL).

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