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| Number | Title | Issue Date |
| 6841063 | Hydrocarbon conversion using zeolite SSZ-53 The present invention relates to a new crystalline zeolite SSZ-53 prepared by using phenylcycloalkylmethyl ammonium cations as structure directing agents. ... | 01/11/2005 |
| 6478951 | Compatibilizer for crumb rubber modified asphalt A compatibilizer and process for use in making crumb rubber modified asphalt. The compatibilizer causes the crumb rubber to completely interact with the asphalt, thereby improving the rheological properties of the asphalt and reducing the tendency of pave... | 11/12/2002 |
| 6274030 | Filtration of feed to integration of solvent deasphalting and gasification The invention is a process of removing solids, particularly catalyst fines, from an asphaltene-containing hydrocarbon liquid. The process comprises contacting an asphaltene-containing hydrocarbon liquid with a solvent to create a mixture. The solvent is t... | 08/14/2001 |
| 5510557 | Endothermic catalytic dehydrogenation process Catalytic dehydrogenation wherein feed is passed in one direction through the bed in a first cycle and heating gas is passed in an opposite direction in a second cycle to provide the endothermic heat of reaction and regenerate catalyst. The operation is c... | 04/23/1996 |
| 4978393 | Process for the manufacture of stockable dense road asphalts A process for the manufacture of stockable dense road asphalt that is comprised of materials, having elements of a diameter from essentially zero to 10-30 mm, coated in a cutback or fluidified bitumen-based binder. The materials are separated into at leas... | 12/18/1990 |
| 4915819 | Treatment of viscous crude oils Asphaltenes and/or wax and/or water are removed from crude oil by contacting the crude oil with an organic solvent to dissolve the crude oil and precipitate asphaltenes and/or wax and separate the oil and water. Solvent is then separated from the deasphal... | 04/10/1990 |
| 4781819 | Treatment of viscous crude oils Asphaltenes and/or wax and/or water are removed from crude oil by contacting the crude oil with an organic solvent to dissolve the crude oil and precipitate asphaltenes and/or wax and separate the oil and water. Solvent is then separated from the deasphal... | 11/01/1988 |
