Inventor

PARASKOS JOHN A

19 patents

⚠️ This page may combine multiple inventors who share the name “PARASKOS JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PARASKOS JOHN A

GULF RESEARCH DEVELOPMENT CO

Hydrodesulfurization catalyst

Hydrodesulfurization process with upstaged reactor zones

Hydrodesulfurization process with parallel first stages in series with a unified second stage

Multiple stage hydrodesulfurization process with extended downstream catalyst life

Process for selective recovery of relatively metals-free bitumen from tar sand using a halogenated aliphatic solvent in combination with a second solvent

Process for increasing the fuel yield of coal liquefaction products by extraction of asphaltenes, resins and aromatic compounds from said coal liquefaction products

Process for the conversion of carbonaceous materials

Multiple stage hydrodesulfurization process including partial feed oil by-pass of first stage

Process for onstream regeneration of a hydrodesulfurization catalyst

Multi-stage hydrodesulfurization utilizing a second stage catalyst promoted with a group IV-B metal

Hydrodesulfurization apparatus with upstaged reactor zones

Coal liquefaction process employing carbon monoxide

Process for separating tar and solids from coal liquefaction products using a halogenated aliphatic solvent

Desulfurization process employing multi-catalyst reactor

Multi-stage hydrodesulfurization process utilizing multi-cycle second stage promoted catalyst

Process for extending life of coal liquefaction catalyst

INTERCAT INC

Method for stabilizing operation of fluid catalytic converter units

CHEVRON RES & TECH

Process for the demetallization of FCC catalyst

TYLER A LAMONT

Fluidized catalytic cracker with active stripper and methods using same