摘要:
At least one embodiment of the inventive technology may involve the intentional changing of the stability of an emulsion from a first stability to a more desired, second stability upon the addition of a more aromatic asphaltene subfraction (perhaps even a most aromatic asphaltene subfraction), or a less aromatic asphaltene subfraction (perhaps even a least aromatic asphaltene subfraction) to a emulsion hydrocarbon of an oil emulsion, thereby increasing emulsion stability or decreasing emulsion stability, respectively. Precipitation and redissolution or sorbent-based techniques may be used to isolate a selected asphaltene subfraction before its addition to an emulsion hydrocarbon when that hydrocarbon is part of an emulsion or an ingredient of a yet-to-be-formed emulsion.
摘要:
A residuum feedstock is upgraded in a short vapor contact time thermal process unit (11) comprised of a horizontal moving bed of fluidized hot particles and is then fed to a fluid catalytic cracking reactor (17). Hot flue gases from the fluid catalytic cracking regenerator (27) are used to circulate solid particles and to provide process heat to the thermal process unit (11).
摘要:
Method to improve mixing water and charge in a hydrocarbon conversion unit comprising foaming the charge with a foaming agent e.g. selected from the group consisting of sulfonates or polymer resins (preferably some oil soluble, some water soluble).
摘要:
At least one embodiment of the inventive technology may involve the intentional changing of the stability of an emulsion from a first stability to a more desired, second stability upon the addition of a more aromatic asphaltene subfraction (perhaps even a most aromatic asphaltene subfraction), or a less aromatic asphaltene subfraction (perhaps even a least aromatic asphaltene subfraction) to a emulsion hydrocarbon of an oil emulsion, thereby increasing emulsion stability or decreasing emulsion stability, respectively. Precipitation and redissolution or sorbent-based techniques may be used to isolate a selected asphaltene subfraction before its addition to an emulsion hydrocarbon when that hydrocarbon is part of an emulsion or an ingredient of a yet-to-be-formed emulsion.
摘要:
This invention provides a fluidized catalytic cracking apparatus and process for converting a hydrocarbon feedstock containing higher concentrations of Conradson Carbon Residue (CCR), metal impurities, etc into lighter products by employing two riser reactors in which the feed impurities are removed using an adsorbent in a first riser reactor and cracking a portion of first riser reactor liquid product in a second riser reactor to lighter products using the active catalyst thus eliminating the catalyst deactivation due to metal, impurities and FCC catalyst activity dilution effect to achieve a better conversion and higher catalyst longevity.