Abstract: A method and system for preventing water entering a dispenser from collecting in the containment pan. This method utilizes a shield or barrier placed inside the dispenser above the containment pan. The material used to form the barrier is insoluble in water but soluble in the hydrocarbons typically found in a dispensing system.

Abstract: A method of repairing polyethylene fuel containment sumps used in underground storage systems in gasoline and diesel service stations without "welding" the polyethylene, using suitable surface preparation, priming of the affected area, and sealing with a two part rubber compound.

Abstract: A method of upgrading the area below a dispenser to contain accidental release harmful materials from contaminating the soil below grade without repiping, electrical changes, or concrete disruption.

Abstract: A method of upgrading an existing unprotected submersible pump area with secondary containment to prevent accidental release of harmful materials from contaminating the soil below grade.

Abstract: A method of upgrading a below grade fill to prevent accidental release harmful materials from contaminating the soil below grade.

Abstract: A laboratory instrument provides a small model reactor which better simulates a back mixed reactor containing a catalyst. The reactor is especially valuable for simulating commercial scale hydrotreating of petroleum resid, coal, and other non-distillable hydrocarbons to obtain some distillable products. An important feature is a magnetically driven pump completely enclosed within the reactor shell of the simulator. All embodiments provide a high temperature and pressure, low liquid to catalyst volume, model reactor where an entire process is carried out within the simulator shell under substantially the conditions prevailing in the full scale reactor.

Abstract: Disclosed is an improved catalyst mixture suitable for use in the hydrodemetallization, hydrodesulfurization, hydrodenitrogenation, and hydroconversion of a hydrocarbon feedstock containing asphaltenes, metals and Shell hot filtration solids precursors. The catalyst mixture has one component of the mixture which is a relatively small pore catalyst and another component which is a catalyst that possesses a relatively large amount of macropore volume.

Abstract: Disclosed is an improved process for the hydrodemetallization, hydrodesulfurization, hydrodenitrogenation, and hydroconversion of a hydrocarbon feedstock containing asphaltenes, metals and Shell hot filtration solids precursors. The process utilizes a catalyst mixture wherein one component of the mixture is a relatively small pore catalyst and another component is a catalyst that possesses a relatively large amount of macropore volume.

Abstract: A process for hydrodenitrogenation of shale oil to convert it to a feed oil for zeolitic riser cracking comprising passing the shale oil through two catalyst stages in series, the catalyst in the first stage comprising supported molybdenum and Group VIII metal and the catalyst in the second stage comprising supported tungsten and Group VIII metal.

Abstract: A process for hydrodenitrogenation of shale oil comprising fractionating the shale oil into relatively light and heavy fractions, passing the relatively light fraction through a zone containing a catalyst comprising supported molybdenum and Group VIII metal and passing the relatively heavy fraction through a zone containing a catalyst comprising supported tungsten and Group VIII metal.