The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Mar. 11, 2020
Valmet Ab, Sundsvall, SE;
Erik Wallin, Kullavik, SE;
VALMET AB, Sundsvall, SE;
Abstract
The present invention relates to a heat recovery systemfor recovering heat from flue gas generated by combustion at a biomass plant installation. The heat recovery systemcomprises a flue gas coolerconfigured to receive flue gasfrom a combustion and transfer heat from the flue gasto feed water in a heat recovery fluid circuit. The feed water in the heat recovery fluid circuitis taken from and returned to a feed water main system. The feed water main system could be provided with a feed water tankto which a heat recovery circuit inletand a heat recovery circuit outlet are connected. Further, the heat recovery system comprises a waste heat accumulatorconfigured to receive feed water, heated by flue gasin a flue gas cooler, and cool by flashing the received feed water in order to generate flash steam, and the heat recovery systemcomprises a control arrangement. Further, the present invention also relates to a method performed by the control arrangement for use in recovering heat from flue gas generated by combustion at a bio plant installation.