Patents by Inventor Stephen Paspek

Stephen Paspek 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: 11987760
    Abstract: Processes for the production of coke, and one or more volatile products comprise the steps of: (i) providing a purified coal product (PCP), wherein the PCP is in particulate form, and wherein at least about 90% v of the particles are no greater than about 100 ?m in diameter; wherein the PCP has an ash content of less than about 10% m and a water content of less than around 5% m; (ii) combining the PCP with a liquid residue oil to create a combined solid-liquid blend, wherein the solid-liquid blend comprises at least around 0.1% m and at most around 30% m PCP; (iii) subjecting the solid-liquid blend to a temperature in excess of 375° C. for a time period sufficient to induce cracking of at least 1% of the PCP particles to generate the one or more volatile products, and (iv) producing coke from the product of step (iii).
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: May 21, 2024
    Assignee: Arq IP Limited
    Inventors: John Unsworth, Stephen Paspek
  • Publication number: 20230348787
    Abstract: There is provided a process for the production of anisotropic coke, the process comprising providing a purified coal product (PCP), wherein the PCP is in particulate form, and wherein at least about 90% by volume (% v) of the particles are no greater than about 100 ?m in diameter; wherein the PCP has an ash content of less than about 10% m and a water content of less than around 5% m. The PCP is combined with a feedstock oil, such as a decant oil, in order to create a combined solid-liquid blend, wherein the solid-liquid blend comprises at least around 0.1% m and at most around 50% m PCP. The solid-liquid blend is subjected to a temperature in excess of 400° C., typically as part of a delayed coker process, for a time period sufficient to induce formation of mesophase, and production of anisotropic coke. Improved yields of valuable needle coke can be obtained via the processes described.
    Type: Application
    Filed: September 10, 2021
    Publication date: November 2, 2023
    Applicant: Arq IP Limited
    Inventors: Stephen Paspek, John Francis Unsworth, Jeramie Joseph Adams, Seth Taylor Bassham
  • Publication number: 20220213390
    Abstract: Processes for the production of coke, and one or more volatile products comprise the steps of: (i) providing a purified coal product (PCP), wherein the PCP is in particulate form, and wherein at least about 90% v of the particles are no greater than about 100 ?m in diameter; wherein the PCP has an ash content of less than about 10% m and a water content of less than around 5% m; (ii) combining the PCP with a liquid residue oil to create a combined solid-liquid blend, wherein the solid-liquid blend comprises at least around 0.1% m and at most around 30% m PCP; (iii) subjecting the solid-liquid blend to a temperature in excess of 375° C. for a time period sufficient to induce cracking of at least 1% of the PCP particles to generate the one or more volatile products, and (iv) producing coke from the product of step (iii).
    Type: Application
    Filed: May 8, 2020
    Publication date: July 7, 2022
    Applicant: Arq IP Limited
    Inventors: John Unsworth, Stephen Paspek
  • Publication number: 20060118469
    Abstract: Hydrogravity separation of a multiple domain solid feedstock is disclosed which comprises granulating the feedstock to produce particles each of substantially a single domain, with each type of particle having a different density. The particles are slurried into a suitable fluid. A dispersion mixer having a high shear and/or turbulent zone is utilized to disperse agglomerated particles and a quiescent hydrogravity tank is utilized to effect binary separation of the mixture of particles into a stream with a higher average specific gravity, and a stream with a lower average specific gravity. A high degree of product purity is obtained by feeding one or both of the initial product streams to a collection of dispersion mixer/hydrogravity tank units using a fluid of substantially the same specific gravity.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 8, 2006
    Inventors: Joseph Bork, Stephen Paspek, Alan Schroeder
  • Publication number: 20050173310
    Abstract: The hydrogravity separation of a multiple component solid feedstock comprises granulating the feedstock to produce particles substantially of individual components having different densities. A dispersion mixer having a high shear and/or turbulent zone is utilized to disperse agglomerated particles and a quiescent hydrogravity tank is utilized to effect binary separation of one or more of the heaviest or one or more of the lightest feedstock components by utilizing an aqueous solution having a specific gravity intermediate of the various components. A high degree of purity is obtained by feeding particles of a selected component to a plurality of sequential dispersion mixers and hydrogravity separation tanks. In a similar manner, remaining thermoplastic particle components can be selectively removed and purified.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 11, 2005
    Inventors: Joseph Bork, Stephen Paspek, Alan Schroeder, Ullrich Engel
  • Publication number: 20050173309
    Abstract: The hydrogravity separation of a multiple domain solid feedstock comprises granulating the feedstock to produce particles substantially of individual domain components having different densities. A dispersion mixer having a high shear and/or turbulent zone is utilized to disperse agglomerated particles and a quiescent hydrogravity tank is utilized to effect binary separation of one or more of the heaviest or one or more of the lightest feedstock components by utilizing an aqueous solution having a specific gravity intermediate of the various components. A high degree of purity is obtained by feeding particles of a selected component to a plurality of sequential dispersion mixers and hydrogravity separation tanks. In a similar manners remaining thermoplastic particle components can be selectively removed and purified.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 11, 2005
    Inventors: Joseph Bork, Stephen Paspek, Alan Schroeder, Ullrich Engel