Waste heat recovery in a chemical process and plant, particularly for the synthesis of ammonia
US9810104B2 · kind B2 · utility
2Cited by
8References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 28, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Nov 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for recovering waste heat in a process for the synthesis of a chemical product, particularly ammonia, where the product is used as the working fluid of a thermodynamic cycle; the waste heat is used to increase the enthalpy content of a high-pressure liquid stream of said product (11), delivered by a synthesis section (10), thus obtaining a vapor or supercritical product stream (20), and energy is recovered by expanding said vapor or supercritical stream across at least one suitable ex-pander (13); the method is particularly suited to recover the heat content of the syngas effluent after low-temperature shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.