Patents by Inventor Eugene L. Stogryn

Eugene L. Stogryn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4961873
    Abstract: The present invention relates to a new alkaline absorbent solution that reduces the H.sub.2 S content in a treated gas to below 10 vppm. The absorbent solution contains two severely-hindered amines, such as bis(tertiarybutylaminoethoxy)-ethane (BTEE) and ethoxyethoxyethanol-tertiarybutylamine (EEETB), a severely hindered amine salt, and/or a severely hindered aminoacid. This invention also describes a process for the removal of H.sub.2 S from fluid mixtures using this absorbent solution to produce a very low level of H.sub.2 S in the treated fluid. The process is also suitable for the selective removal of H.sub.2 S from fluid mixtures comprising H.sub.2 S and CO.sub.2.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: October 9, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: W. S. Winston Ho, Guido Sartori, Eugene L. Stogryn
  • Patent number: 4894179
    Abstract: A new alkaline absorbent solution containing a tertiary amino azabicyclic alcohol in combination with its salt with a strong acid and/or in combination with a severely-hindered aminoacid is provided. A process for the removal of H.sub.2 S from fluid mixtures using this absorbent solution to produce a very low level of H.sub.2 S in the treated fluid is also provided. The process is also suitable for the selective removal of H.sub.2 S from fluid mixtures comprising H.sub.2 S and CO.sub.2. Use of the above absorbent solution leads to higher selectivity for H.sub.2 S without damaging capacity than observed when the tertiary amino azabicyclic alcohol is used alone without additive.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: January 16, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Guido Santori, W. S. Winston Ho, Eugene L. Stogryn
  • Patent number: 4894178
    Abstract: The present invention relates to a mixture of severely-hindered amines, such as bis-(tertiarybutylaminoethoxy)-ethane (BTEE) and ethoxyethoxyethanoltertiarybutylamine (EEETB), and a one-step synthesis method for its preparation. Besides, this invention describes the use of the mixture for the removal of H.sub.2 S, especially the selective removal of H.sub.2 S in the presence of CO.sub.2.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: January 16, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: W. S. Winston Ho, Eugene L. Stogryn, Guido Sartori
  • Patent number: 4762934
    Abstract: A novel class of diaminoether compounds wherein one amino group thereof is a tertiary amine in N-heterocyclic form and the other amino group is a severely sterically hindered secondary amino group may be prepared by a three-step process and are useful in the selective removal of H.sub.2 S from mixtures containing H.sub.2 S and CO.sub.2.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: August 9, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Eugene L. Stogryn, Guido Sartori
  • Patent number: 4665195
    Abstract: Disclosed is a process for producing di-amino-polyalkenyl ethers by reacting (a) one or more acyclic or heterocyclic amino compounds with (b) one or more polyalkenyl ether glycols or polyalkenyl amino ether alcohols, in the presence of a hydrogenation catalyst, at elevated temperatures and pressures.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: May 12, 1987
    Assignee: Exxon Research and Engineering Company
    Inventors: Eugene L. Stogryn, W.S. Winston Ho, Angelo A. Montagna
  • Patent number: 4665234
    Abstract: A novel class of severely sterically hindered secondary aminoether alcohols of the general formula: ##STR1## are prepared wherein R.sub.1 and R.sub.2 are each selected from the group consisting of alkyl and hydroxylalkyl radicals R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each selected from the group consisting of hydrogen, alkyl and hydroxyalkyl radicals, with the proviso that at least one of R.sub.4 or R.sub.5 bonded to the carbon atom directly bonded to the nitrogen atom is an alkyl or hydroxyalkyl radical when R.sub.3 is hydrogen, x and y are each positive integers ranging from 2-4 and z is a positive integer ranging from 1-4. The compounds are useful in the selective removal of H.sub.2 S from mixtures containing H.sub.2 S and CO.sub.2.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: May 12, 1987
    Assignee: Exxon Research and Engineering Company
    Inventor: Eugene L. Stogryn
  • Patent number: 4487967
    Abstract: The present invention relates to a process for selectively preparing severely sterically hindered secondary aminoether alcohols by reacting a primary amino compound with a polyalkenyl ether glycol in the presence of a hydrogenation catalyst at elevated temperatures and pressures. The severely sterically hindered secondary aminoether alcohols are useful in acid gas scrubbing processes, particularly in the selective removal of H.sub.2 S from gaseous streams containing CO.sub.2 and H.sub.2 S.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: December 11, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Eugene L. Stogryn, W. S. Winston Ho, Angelo A. Montagna, Guido Sartori
  • Patent number: 4483833
    Abstract: The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a nitrogen heterocyclic tertiary aminoalkanol or aminoetheralkanol whereby H.sub.2 S is selectively absorbed from the mixture.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: November 20, 1984
    Assignee: Exxon Research & Engineering Co.
    Inventors: Eugene L. Stogryn, David W. Savage, Guido Sartori
  • Patent number: 4471138
    Abstract: A novel class of severely sterically hindered secondary aminoether alcohols of the general formula: ##STR1## are prepared wherein R.sub.1 and R.sub.2 are each selected from the group consisting of alkyl and hydroxylalkyl radicals R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each selected from the group consisting of hydrogen, alkyl and hydroxyalkyl radicals, with the proviso that at least one of R.sub.4 or R.sub.5 bonded to the carbon atom directly bonded to the nitrogen atom is an alkyl or hydroxyalkyl radical when R.sub.3 is hydrogen, x and y are each positive integers ranging from 2-4 and z is a positive integer ranging from 1-4. The compounds are useful in the selective removal of H.sub.2 S from mixtures containing H.sub.2 S and CO.sub.2.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: September 11, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: Eugene L. Stogryn
  • Patent number: 4460385
    Abstract: Disclosed is a process for selectively removing one or more acid gases from hydrocarbon feed streams containing the same using hydroxyalkyl pyrrolidones as a physical solvent for each of the acid gases or aqueous mixtures containing the physical solvent. The process may be operated using the generalized flow sheet of a typical industrial acid gas treating plant as shown in FIG. 1.
    Type: Grant
    Filed: November 26, 1982
    Date of Patent: July 17, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventors: Yen-Chi Pan, Eugene L. Stogryn
  • Patent number: 4417075
    Abstract: A novel class of di-secondary aminoethers of the general formula: ##STR1## are disclosed wherein R.sub.1 and R.sub.8 are each independently selected from the group consisting of primary alkyl having 1 to 8 carbon atoms and primary hydroxyalkyl having 2 to 8 carbon atoms, secondary alkyl and secondary hydroxyalkyl radicals having 3 to 8 carbon atoms, tertiary alkyl and tertiary hydroxyalkyl radicals having 4 to 8 carbon atoms, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are each independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.3 alkyl and hydroxyalkyl radicals, with the proviso that R.sub.2, R.sub.3, R.sub.6, and R.sub.7 are C.sub.1 -C.sub.4 alkyl or hydroxyalkyl radicals when R.sub.1 and R.sub.8 are primary alkyl or hydroxyalkyl radicals, and at least one of R.sub.2 or R.sub.3 and R.sub.6 or R.sub.7 are C.sub.1 to C.sub.3 alkyl or hydroxyalkyl radicals when R.sub.1 and R.sub.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: November 22, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Eugene L. Stogryn
  • Patent number: 4405581
    Abstract: The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary amino compound having a cumulative .sup.- E.sub.s value (Taft's steric hindrance constant) greater than about 1.75 whereby H.sub.2 S is selectively absorbed from the mixture.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: September 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: David W. Savage, Guido Sartori, Eugene L. Stogryn
  • Patent number: 4405811
    Abstract: A novel class of severely sterically hindered tertiary amino compounds having a pK.sub.a value at 20.degree. C. greater than 8.6, preferably ranging from 9.3 to about 10.6, and a cumulative -E.sub.s value of at least 1.9 are found to be useful in selective removal of H.sub.2 S from a normally gaseous mixture containing H.sub.2 S and CO.sub.2.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: September 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Eugene L. Stogryn, Guido Sartori
  • Patent number: 4405583
    Abstract: The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a di-secondary aminoether wherein each amino group has a severely sterically hindered secondary amino moiety whereby H.sub.2 S is selectively absorbed from the mixture.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: September 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Eugene L. Stogryn, David W. Savage, Guido Sartori
  • Patent number: 4405582
    Abstract: The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a diaminoether wherein at least one amino group is a tertiary amine whereby H.sub.2 S is selectively absorbed from the mixture.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: September 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Eugene L. Stogryn, David W. Savage, Guido Sartori
  • Patent number: 4405585
    Abstract: The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary aminoether alcohol having a cumulative .sup.- -E.sub.s value (Taft's steric hindrance constant) greater than about 1.75 whereby H.sub.2 S is selectively absorbed from the mixture.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: September 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Guido Sartori, David W. Savage, Eugene L. Stogryn
  • Patent number: 4405580
    Abstract: The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a tertiary amino azabicyclic alcohol whereby H.sub.2 S is selectively absorbed from the mixture.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: September 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Eugene L. Stogryn, David W. Savage, Guido Sartori
  • Patent number: 4293623
    Abstract: An electrolyte for an alkali metal electrochemical device features (a) an organic solvent; and (b) at least one electrolytically active alkali-metal complex anion salt. The salt has the formula:ZMR.sub.x Q.sub.ywherein Z is an alkali-metal; wherein M is an element selected from a group consisting of B, Al, Ga, In, Tl, P, As, Zn, Cd and Sn (stannous); wherein Q represents at least one heteroatom grouping bonded to M, the core element, through a carbon-M bond; wherein R is selected from a group consisting of: heteroatom-containing groups bonded to M, the core element, through the heteroatom site, alkyls, aryls, alkaryls, aralkyls, halogens, halogen substituted aryls, halogen substituted alkaryls, and pseudohalides; and wherein x and y are positive integers, a sum of x plus y being equal to one plus the valence of the metal M, and further, wherein x can be zero.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: October 6, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventors: Lawrence P. Klemann, Gerald H. Newman, Eugene L. Stogryn, Thomas A. Whitney, Dan Farcasiu
  • Patent number: 4224256
    Abstract: The present invention is directed to a method of preparing an organic-alkali metal-boron salt of the formula:ZBAr.sub.m R.sub.n Ar.sub.x 'wherein Z is an alkali metal selected from the group consisting of lithium and sodium, wherein B is boron, wherein Ar is an aromatic organic radical selected from a specified group of radicals, wherein R is an organic radical selected from methyl and ethyl, wherein Ar' is an aromatic organic radical selected from the group consisting of specified divalent dicyclic radicals, wherein m is a numerical value such that 0.ltoreq.m.ltoreq.4, wherein n is a numerical value such that 0.ltoreq.n.ltoreq.2, and wherein x is a numerical value such that 0.ltoreq.x.ltoreq.2, subject to the provisio that the sum of m and n and x is such that the total valence of the organic radicals Ar, R and Ar' equals four. The method involves the reaction of a nitrogen-containing compound of the formula:QHBAr.sub.m R.sub.n Ar.sub.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: September 23, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Lawrence P. Klemann, Eugene L. Stogryn
  • Patent number: 4216191
    Abstract: The present invention is directed to a method of preparing an inorganic-alkali metal salt of the formula:ZYwherein Z is an alkali metal selected from the group consisting of lithium and sodium, and wherein Y is an inorganic radical selected from the group consisting of SCN, CN, CNS, OCN, Br, I, Cl, NO.sub.2, NO.sub.3, ClO.sub.4, ReO.sub.4, and CF.sub.3 SO.sub.3. The method involves the reaction of a nitrogen-containing compound of the formula:QHYwherein Q is selected from the group consisting of specified nitrogen-containing groups, and wherein H is hydrogen and Y is as defined above, with an alkali metal compound of the formula:ZXwherein Z is defined above and wherein X is selected from the group consisting of hydrogen, specified nitrogen-containing radicals, and specified organic radicals. The reaction is carried out in ether solvent. In a preferred embodiment, Q is NH.sub.3 and X is hydrogen.
    Type: Grant
    Filed: May 1, 1979
    Date of Patent: August 5, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Lawrence P. Klemann, Eugene L. Stogryn