公开(公告)号：US09957622B2

公开(公告)日：2018-05-01

申请号：US13790744

申请日：2013-03-08

申请人： FIELD UPGRADING LIMITED

发明人： James Mosby ,  Sai Bhavaraju ,  Mukund Karanjikar

IPC分类号： C25B9/08 ,  C25B15/00 ,  C25B9/06 ,  C25B3/10 ,  C10G3/00

CPC分类号： C25B3/10 ,  C10G3/00 ,  C10G2300/1011 ,  C10G2300/44 ,  C25B9/08 ,  Y02P30/20

摘要： A method for converting carboxylic acids (including carboxylic acids derived from biomass) into hydrocarbons. The produced hydrocarbons will generally have at least two oxygen containing substituents (or other substituents). In one example of application, the electrolysis converts alkali salts of carboxylic acids into diols which can then be used as solvents or be dehydrated to produce dienes, which can then be used to produce elastic polymeric materials. This process allows custom synthesis of high value chemicals from renewable feed stocks such as carboxylic acids derived from biomass.

公开(公告)号：US10355305B2

公开(公告)日：2019-07-16

申请号：US14196893

申请日：2014-03-04

申请人： FIELD UPGRADING LIMITED

发明人： Sai Bhavaraju

IPC分类号： H01M10/052 ,  H01M10/054 ,  C25B13/04 ,  C25C7/04 ,  H01M10/0562 ,  H01M6/18 ,  H01M8/1016

摘要： The present invention provides an electrochemical cell that includes an anolyte compartment housing an anode electrode; a catholyte compartment housing a cathode electrode; and a solid alkali ion conductive electrolyte membrane separating the anolyte compartment from the cathode compartment. In some cases, the electrolyte membrane is selected from a sodium ion conductive electrolyte membrane and a lithium ion conductive membrane. In some cases, the at least one of anode or the cathode includes an alkali metal intercalation material.

公开(公告)号：US09988587B2

公开(公告)日：2018-06-05

申请号：US14812888

申请日：2015-07-29

申请人： FIELD UPGRADING LIMITED

发明人： Ashok V Joshi ,  Sai Bhavaraju

IPC分类号： C10L3/10

CPC分类号： C10L3/105 ,  C10L2290/12 ,  C10L2290/38 ,  C10L2290/54

摘要： A method for removing nitrogen from natural gas includes contacting substantially dry natural gas that contains unwanted nitrogen with lithium metal. The nitrogen reacts with lithium to form lithium nitride, which is recovered for further processing, and pipeline quality natural gas. The natural gas may optionally contain other chemical species that may be reduced by lithium, such as carbon dioxide, hydrogen sulfide, and small amounts of water. These lithium reducible species may be removed from the natural gas concurrently with the removal of nitrogen. The lithium nitride is subjected to an electrochemical process to regenerate lithium metal. In an alternative embodiment, lithium nitride is reacted with sulfur to form lithium sulfide and nitrogen. The lithium sulfide is subjected to an electrochemical process to regenerate lithium metal and sulfur. The electrochemical processes are advantageously performed in an electrolytic cell containing a lithium ion selective membrane separator.

公开(公告)号：US09856569B2

公开(公告)日：2018-01-02

申请号：US13935035

申请日：2013-07-03

申请人： FIELD UPGRADING LIMITED

发明人： Sai Bhavaraju

IPC分类号： C25C1/22 ,  C25C1/06 ,  C25C3/06 ,  C25C3/28 ,  C25B1/14 ,  C25C1/02 ,  C25C3/02 ,  C25C3/24 ,  C25C3/34

CPC分类号： C25C1/22 ,  C25B1/14 ,  C25C1/02 ,  C25C1/06 ,  C25C3/02 ,  C25C3/06 ,  C25C3/24 ,  C25C3/28 ,  C25C3/34

摘要： A process of producing metal that includes adding a quantity of a alkoxide (M(OR)x) or another metal salt to a cathode compartment of an electrolytic cell and electrolyzing the cell. This electrolyzing causes a quantity of alkali metal ions to migrate into the cathode compartment and react with the metal alkoxide, thereby producing metal and an alkali metal alkoxide. In some embodiments, the alkali metal is sodium such that the sodium ions will pass through a sodium ion selective membrane, such as a NaSICON membrane, into the cathode compartment.

公开(公告)号：US10337108B2

公开(公告)日：2019-07-02

申请号：US15061427

申请日：2016-03-04

申请人： FIELD UPGRADING LIMITED

发明人： Ashok V Joshi ,  Sai Bhavaraju

IPC分类号： C25B1/10 ,  C25B1/20 ,  C25B1/24 ,  C25B15/08 ,  C25B9/08 ,  C25B1/04 ,  C25B9/10 ,  C25B13/04

摘要： Electrochemical systems and methods for producing hydrogen. Generally, the systems and methods involve providing an electrochemical cell that includes an anolyte compartment holding an anode in contact with an anolyte, wherein the anolyte includes an oxidizable substance having a higher standard oxidation potential than water. The cell further comprises a catholyte compartment holding a cathode in contact with a catholyte that includes a substance that reduces to form hydrogen. Additionally, the cell includes an alkali cation conductive membrane that separates the anolyte compartment from the catholyte compartment. As an electrical potential passes between the anode and cathode, the reducible substance reduces to form hydrogen and the oxidizable substance oxidizes to form an oxidized product. The pH within the catholyte compartment may be controlled and maintained to a value in the range of 6 to 8. Apparatus and methods to regenerate the oxidizable substance are disclosed.

公开(公告)号：US10145019B2

公开(公告)日：2018-12-04

申请号：US15290864

申请日：2016-10-11

申请人： FIELD UPGRADING LIMITED

发明人： Sai Bhavaraju ,  James Mosby ,  Patrick McGuire ,  Mukund Karanjikar ,  Daniel Taggart ,  Jacob Staley

IPC分类号： C25B3/00 ,  C25B3/02 ,  C25B3/10 ,  C07C29/32 ,  C07C1/207 ,  C10G3/00 ,  C25B9/08 ,  C25B15/08 ,  C07C51/41

摘要： Methods, equipment, and reagents for preparing organic compounds using custom electrolytes based on different ionic liquids in electrolytic decarboxylation reactions are disclosed.