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公开(公告)号：US11203721B1
公开(公告)日：2021-12-21
申请号：US16914693
申请日：2020-06-29
Applicant: PRECISION COMBUSTION, INC.
Inventor： Codruta Maria Zoican-Loebick
Abstract: A process of removing at least one metal contaminant, such as copper, from a fluid hydrocarbon, for example, crude oil or a liquid hydrocarbon fuel, such as an aviation fuel. The process involves contacting the metal-contaminated fluid hydrocarbon with a sorbent selected from graphene oxide or a functionalized graphene oxide, particularly, a graphene oxide treated with a polycarboxylic acid, such as a saccharide polycarboxylic acid or a salt thereof, examples of which include alginic acid and Group IA and IIA salts thereof. The process removes greater than 99 percent of the metal contaminant without reducing concentrations of advantageous fuel additives, such as, antioxidants, icing inhibitors and corrosion inhibitors. Also described are a purified fluid hydrocarbon composition and a metal contaminant filter system.
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公开(公告)号：US10668447B2
公开(公告)日：2020-06-02
申请号：US16568773
申请日：2019-09-12
Applicant: PRECISION COMBUSTION, INC.
Inventor： Codruta Maria Zoican-Loebick
Abstract: A process of removing a volatile organic compound (VOC) from a gaseous environment, involving contacting a gaseous feedstream containing one or more VOC's, such as an odoriferous compound, an irritant, a contaminant or pollutant, for example, formaldehyde, with a sorbent under conditions sufficient to reduce the concentration of the VOC's in the gaseous feedstream. The sorbent is comprised of a functionalized graphene prepared by amination of graphene oxide. The sorbent is regenerated by adsorbate desorption under mild conditions of air flow. The process can be run through multiple adsorption-desorption cycles in a single fixed bed or swing bed configuration, and is applicable to purifying indoor air and ventilation air as well as reducing pollutants in industrial waste gas streams.
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公开(公告)号：US20200001269A1
公开(公告)日：2020-01-02
申请号：US16568773
申请日：2019-09-12
Applicant: PRECISION COMBUSTION, INC.
Inventor： Codruta Maria Zoican-Loebick
Abstract: A process of removing a volatile organic compound (VOC) from a gaseous environment, involving contacting a gaseous feedstream containing one or more VOC's, such as an odoriferous compound, an irritant, a contaminant or pollutant, for example, formaldehyde, with a sorbent under conditions sufficient to reduce the concentration of the VOC's in the gaseous feedstream. The sorbent is comprised of a functionalized graphene prepared by amination of graphene oxide. The sorbent is regenerated by adsorbate desorption under mild conditions of air flow. The process can be run through multiple adsorption-desorption cycles in a single fixed bed or swing bed configuration, and is applicable to purifying indoor air and ventilation air as well as reducing pollutants in industrial waste gas streams.
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