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| Number | Title | Issue Date |
| 7871511 | Method to alter coke morphology using either polynuclear aromatic compounds or functionalized lignin A method for altering coke morphology in a delayed coking process of heavy oil is provided. An effective amount of one or more oil dispersible or oil soluble polynuclear aromatic compounds, or functionalized lignin, is added or contacted with the resid or heavy oil ... | 01/18/2011 |
| 7837861 | Process for benzene reduction and sulfur removal from FCC naphthas A process for the removal of sulfur compounds and benzene of a catalytically cracked petroleum naphtha comprising benzene, organic sulfur compounds and olefins, by fractionating the cracked naphtha into a relatively low boiling range, olefinic, light catalytic napht... | 11/23/2010 |
| 7487663 | Method for selecting fuel to both optimize the operating range and minimize the exhaust emissions of HCCI engines Operation of a DI HCCI engine is optimized for maximizing load capability and load ranges via matching fuel ignitability with the compression ratio of the engine. ... | 02/10/2009 |
| 7125818 | Catalyst for wax isomerate yield enhancement by oxygenate pretreatment A dewaxing catalyst is selectively activated by treatment with an oxygenate. Selective activation is accomplished by treated the dewaxing catalyst with a carrier feed containing oxygenate. The selectively activated dewaxing catalyst when used to dewax waxy hydrocarb... | 10/24/2006 |
