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. 25, 2024
Filed:
Oct. 20, 2021
Petroleo Brasileiro S.a.—petrobras, Rio de Janeiro, BR;
Universidade Federal DO Rio DE Janeiro—ufrj, Rio de Janiero, BR;
Vera Maria Martins Salim, Rio de Janeiro, BR;
Jailton Ferreira Do Nascimento, Rio de Janeiro, BR;
Neuman Solange De Resende, Rio de Janeiro, BR;
Carla Luciane Manske Camargo, Rio de Janeiro, BR;
Amanda Gerhardt De Oliveira Ferreira, Rio de Janeiro, BR;
PETROLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro, BR;
UNIVERSIDADE FEDERAL DO RIO DE JANEIRO—UFRJ, Rio de Janeiro, BR;
Abstract
The present invention is in relation to a process for preparing calcium phosphate-based sulfated adsorbents that capture mercury in gas streams, comprised of the steps of synthesis of the precursors, incorporation of a transition metal, and sulfation of the material. These adsorbents present high efficiency both for removal of low concentrations of mercury, such as in natural gas, and for stabilization of this pollutant. The adsorbents obtained in the invention may be used in the Mercury Removal Units (MRUs) present in natural gas processing plants, which mercury removal units may be located either upstream or downstream of the dehydration and HS removal units, due to the adsorbents obtained showing resistance to HS poisoning, and maintaining their performance in the presence of water.