Abstract: This application describes a system associated with a network-based delivery service that receives item delivery requests from various individuals. The system determines whether the item(s) in the item delivery requests can be delivered. If not, the system generates and provides a selectable notification the various individuals. The selectable notification prompts the various individuals to pick up the item(s) in the item delivery request instead of waiting for delivery of the item(s).

Abstract: A system can implement a delivery service for a service region by monitoring, for each respective sub-region of the service region, supply conditions corresponding to transport providers available to deliver menu items from menu item suppliers to requesting users. When the supply conditions have dropped below the equilibrium threshold for a respective sub-region, the system can initiate a supply-constrained mode for the respective sub-region in which the system inputs each respective menu item request received, corresponding to a delivery location within the respective sub-region, into a queue, and dynamically determines a fulfillment probability for the respective menu item request. When the fulfillment probability of the respective menu item request exceeds a fulfillment threshold, the system can transmit the respective menu item request to a corresponding menu item supplier for preparation of a corresponding menu item and coordinate delivery of the corresponding menu item to the requesting user.

Abstract: A system can implement a delivery service for a service region by monitoring, for each respective sub-region of the service region, supply conditions corresponding to transport providers available to deliver menu items from menu item suppliers to requesting users. When the supply conditions have dropped below the equilibrium threshold for a respective sub-region, the system can initiate a supply-constrained mode for the respective sub-region in which the system inputs each respective menu item request received, corresponding to a delivery location within the respective sub-region, into a queue, and dynamically determines a fulfillment probability for the respective menu item request. When the fulfillment probability of the respective menu item request exceeds a fulfillment threshold, the system can transmit the respective menu item request to a corresponding menu item supplier for preparation of a corresponding menu item and coordinate delivery of the corresponding menu item to the requesting user.

Abstract: A system can implement a delivery service for a service region by monitoring, for each respective sub-region of the service region, supply conditions corresponding to transport providers available to deliver menu items from menu item suppliers to requesting users. When the supply conditions have dropped below the equilibrium threshold for a respective sub-region, the system can initiate a supply-constrained mode for the respective sub-region in which the system inputs each respective menu item request received, corresponding to a delivery location within the respective sub-region, into a queue, and dynamically determines a fulfillment probability for the respective menu item request. When the fulfillment probability of the respective menu item request exceeds a fulfillment threshold, the system can transmit the respective menu item request to a corresponding menu item supplier for preparation of a corresponding menu item and coordinate delivery of the corresponding menu item to the requesting user.

Abstract: The present invention is directed towards modifying the internals of the reactor section of a fluidized coke reactor such that the majority of the hydrocarbon feed will react in the core region of the reactor section and that any hydrocarbon vapour that is produced in the annular region will be released into the core region. Therefore, the present invention reduces the residence time of vapour immediately flashed from the injected hydrocarbon feed, resulting in reduced secondary vapour phase cracking.

Abstract: A process for converting a heavy hydrocarbonaceous feedstock to liquid products is provided comprising introducing the hydrocarbonaceous feedstock into a fluid coker comprised in part of a fluidized bed of heated coke particles, the fluidized bed having a high velocity core region of heated coke particles and a low velocity annular region of unreacted hydrocarbon and coke particles using a plurality of high thrust nozzles and reacting the hydrocarbonaceous feedstock with the heated coke particles in the fluid coker to produce the liquid products.

Abstract: A method of upgrading bitumen in a plant comprising a diluent recovery unit that processes diluted bitumen and outputs atmospheric topped bitumen (ATB), a vacuum distillation unit which processes ATB and outputs vacuum topped bitumen (VTB), and at least one fluid coker unit which processes VTB and outputs a tar pot bottom stream comprising heavy heavy gas oil is provided comprising the step of processing the tar pot bottom stream in a catalytic hydrocracking unit comprising an ebullated bed reactor to produce naphtha, light gas oil, and heavy gas oil.