A continuous process includes supplying, to a hydrogen production unit, an energy source in the form of mechanical energy or electrical energy produced from thermal energy generated in a hydrogenation process in a hydrogenation reactor unit, and flowing a light hydrocarbon feed stream into the hydrogen production unit in the presence of a catalyst to produce a hydrogen gas enriched stream using the energy source.

A gas plant hydrocarbon recovery management system includes a hydrocarbon blowdown header flowline for receiving a hydrocarbon drainage composition, a recovery flowline extending from the header flowline to receive a portion of the composition, a three-phase gravity separator in fluid communication with the recovery flowline via a first flowline, and a hydrocarbon recovery vessel in fluid communication via a second flowline. A three-way control valve is arranged in the recovery flowline and actuatable between a first operational state, where the portion of the composition is entirely diverted through the first flowline and to the three-phase gravity separator, and a second operational state, where some of the portion of the composition is diverted also to the second flowline and to the hydrocarbon recovery vessel. The valve is actuated from the first to the second operational state when a flow rate through the first flowline reaches a predetermined maximum flow rate.

Methods and apparatus for processing hydrocarbon and other feedstocks that contain lighter volatile component(s) along with heavier volatile or non-volatile component(s) and/or contaminant(s). The principal benefit being that a feedstock can be processed and separated into its distinct volatile components down to elemental and/or molecular levels, including the ability to handle the heaviest tars and bitumen within the system. This effectively provides onsite value add to the feedstock resource (minus the waste streams such as water, sulfur, or sand; which may have value as isolated components in their own right). The system is robust and can include innovative hardware, methods, and/or software. The system can isolate water, chemical, various hydrocarbon, and particle contaminants of arbitrary concentrations and sizes. These factors provide for significant increases in processing efficiencies and capabilities in the fields of refining and environmental recovery. In a variety of operating scenarios, near-zero emissions can be achieved while processing.

Electrical power derived from a renewable energy source is used to perform electrolysis of water to produce oxygen and hydrogen. A feed stream includes consumer waste plastics, a waste stream from a hydrocarbon refinery, or both. The feed stream is partially oxidized to produce syngas. At least a portion of the carbon monoxide of the syngas is reacted with water to produce additional carbon dioxide and hydrogen. A hydrocarbon feed stream is hydroprocessed using at least a portion of the hydrogen generated by electrolysis and at least a portion of the hydrogen from the syngas to produce a hydroprocessing product stream including a saturated hydrocarbon. At least a portion of the carbon dioxide of the syngas is hydrogenated using at least a portion of the hydrogen generated by electrolysis to produce a product stream including a hydrocarbon, an oxygenate, or both.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and/or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and/or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and/or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

In various aspects, systems and methods are provided for operating an oxygen-fired catalyst regenerator with flue gas recycle and CO.sub.2 capture. An oxygen-fired catalyst regenerator contrasts with an air-fired regenerator. The oxygen-fired catalyst regenerator substantially reduces nitrogen within the system, which facilitates CO.sub.2 capture by reducing the energy required to capture CO.sub.2. In various aspects, a first portion of the regenerator flue gas is passed to a CO.sub.2 capture system and a second portion is recycled to the regenerator. Before the flue gas is recycled or diverted to the CO.sub.2 capture, it is passed to various processes that remove and/or reduce SO.sub.x, NO.sub.x, particulate, and water content. In various aspects, a portion of the treated flue gas may be combined with substantially pure O.sub.2 and recycled to the regenerator.

A dividing wall column or a pair of conventional columns can be used to separate an unstabilized naphtha stream to produce an aromatics-free light naphtha stream as a feed for a catalytic cracking unit for olefins production.

A process is provided for improving energy efficiency and reducing greenhouse gas emissions in a hydrocarbon processing and/or production facility, through rearrangement of thermal energy distribution within said facility, said facility comprising a cracker unit with at least one apparatus for cracking a hydrocarbon containing feed, in presence of a dilution medium, wherein a cracked gaseous effluent exiting the apparatus is instantly cooled in a transfer line exchanger (TLE) while generating high-pressure steam, in which process any one of the: heating and/or vaporizing the hydrocarbon containing feed and/or the dilution medium, heating and/or vaporizing boiler feed water, and superheating high pressure steam generated in the TLE unit, is conducted in a heat recovery unit (HRU) arranged downstream the TLE, and which process comprises supplying electrical power into the hydrocarbon processing and/or production facility.

Systems and methods to provide low carbon intensity (CI) ethanol through one or more targeted reductions of carbon emissions based upon an analysis of carbon emissions associated with a combination of various options for feedstock procurement, feedstock refining, processing, or transformation, and ethanol distribution pathways to end users. Such options are selected to maintain the total CI (carbon emissions per unit energy) of the ethanol below a pre-selected threshold that defines an upper limit of CI for the ethanol.

Integrated processes and facilities for providing recycled content hydrocarbon products (r-products) from mixed waste plastic are provided. Carbon dioxide capture and energy recovery from one or more process streams described herein increase energy efficiency and help reduce overall environmental impact while producing valuable final products from chemically recycled waste plastic.