Abstract: A process for hydrotreating a feed stream comprising a biorenewable feedstock is disclosed. The process comprises hydrotreating the feed stream in the presence of a hydrotreating hydrogen stream and a hydrotreating catalyst to provide a hydrotreated stream. The hydrotreated stream is separated into a hydrotreated liquid stream and a hydrotreated gas stream. The hydrotreated liquid stream is subjected to stripping to provide a stripper off-gas stream. At least a portion of the stripper off-gas stream is contacted with a caustic stream to provide a sulfur-lean gas stream and a sulfur-rich caustic stream. The sulfur-rich caustic stream is further treated to provide a treated gas stream.

Abstract: A process for removing butenes from C4-hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The process also involves heat integration, which allows utilization of the heat of the solvent for heating and/or at least partly evaporating various streams.

Abstract: A catalyst composition includes a liquid metal alloy having a melting point from about 20° C. to about 25° C., the liquid metal alloy including a primary metal and a secondary metal, the primary metal being aluminum and the secondary metal is selected from the group consisting of gallium, indium, and bismuth.

Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). In some cases, the pyrolysis and cracking may be carried out in different sections of the same furnace, or in different furnaces in the same cracker facility. Pyrolysis conducted in a furnace may or may not require retrofitting a furnace previously used to crack alkanes to form olefins.

Abstract: Provided is a method for treating an oil gas, which can realize high-efficiency separation for and recovery of gasoline components, C2, C3, and C4 components. The method first conducts separation of light hydrocarbon components from gasoline components, and then performs subsequent treatment on a stream rich in the light hydrocarbon components, during which it is no longer necessary to use gasoline to circularly absorb liquefied gas components, which significantly reduces the amount of gasoline to be circulated and reduces energy consumption throughout the separation process. Besides, in this method, impurities, such as H2S and mercaptans, in the stream rich in the light hydrocarbon components are removed first before the separation for the components. This ensures that impurities will not be carried to a downstream light hydrocarbon recovery section, thus avoiding corrosion issues caused by hydrogen sulfide in the light hydrocarbon recovery section.

Abstract: A natural gas separation and purification and mercury collection system for oil and gas wells includes a cyclone separator, a condensation purification and separation mechanism, pressure buffer mechanisms, mercury collection and separation mechanisms, and natural gas storage tanks. An inlet end of the cyclone separator is communicated with an external gas source through a pressure buffer mechanism, and an outlet end of the cyclone separator is communicated with the condensation purification and separation mechanism through a pressure buffer mechanism. The condensation purification and separation mechanism is communicated with the mercury collection and separation mechanism through a pressure buffer mechanism. The mercury collection and separation mechanism is communicated with the natural gas storage tank through a guide tube. A method of use of the natural gas separation and purification and mercury collection system includes gas collection, gas purification, mercury separation, and mercury analysis.

Abstract: The present invention relates to a process for oiling essentially organic starting products with a higher molecular weight, in which hydrocarbons, preferably in liquid or semi-solid form, and a residual material with a high carbon content are obtained by the impact of high temperatures.

Abstract: A plastic-to-oil plant for converting plastics into petrochemical products is disclosed. Operation shall be energy- and resource-efficient. To reach this aim, the inventions suggests a plastic-to-oil plant, having a cracking reactor for a pyrolysis reaction, wherein plastics, in particular polyolefins, are converted into at least gasified pyrolysis products and char.

Abstract: A process for converting a first hydrocarbon feed stream to one or more liquid transportation fuels in a petroleum refinery where the feed stream is analyzed by at least one analytical method to produce data that is transformed to wavelet coefficients data. A pattern recognition algorithm is trained to recognize subtle features in the wavelet coefficients data that are associated with an attribute of the feed stream. The trained pattern recognition algorithm then rapidly classifies potential hydrocarbon feed streams as a member of either a first group or a second group where the second group comprises hydrocarbon feed streams where the attribute or chemical characteristic at or above a predetermined threshold value. This classification allows rapid decisions to be made regarding utilization of the feedstock in the refinery that may include altering at least one variable in the operation of the refinery.

Abstract: A method for preparing a purified styrene composition is provided. The method includes providing a crude composition and subjecting the crude composition to at least one crystallization step. The crude composition contains 70% by weight or more styrene based on the total weight of the crude composition. The at least one crystallization step comprises at least one of a static crystallization stage and a dynamic crystallization stage. The crude composition contains at least one impurity selected from the group consisting of: color inducing species, oxygenates, sulfur species, alpha-methylstyrene, and mixtures thereof.

Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface adapted for and/or resulting from, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can include and/or relate to, converting biomass to synthetic hydrocarbons using a biomass thermal decomposer and/or a hydrocarbon synthesizer.

Abstract: A hydrocarbon adsorbent having high hydrocarbon adsorbing properties even after exposed to a high temperature/high humidity reducing atmosphere, includes a FAU type zeolite having in ESR measurement a spin concentration of a least 1.0×10{circumflex over (?)}19 (spins/g) and a ratio of a peak intensity at a magnetic field of at least 260 mT and at most 270 mT to a peak intensity at a magnetic field of at least 300 mT and at most 320 mT of at least 0.25 and at most 0.50 ? and containing bivalent copper. The hydrocarbon adsorbent may be used for a method for adsorbing hydrocarbons to be exposed to a high temperature/high humidity environment, and may be used particularly for a method for adsorbing hydrocarbons in an exhaust gas of an internal combustion engine, such as an automobile exhaust gas.

Abstract: Methods and systems for treating an olefin-containing stream are disclosed. The disclosed methods and systems are particularly suitable for treating an off-gas stream in a refining or petrochemical process, such as from a fluid catalytic cracker (FCC), coker, steam cracker, and the like. The stream is treated in an absorber column to reject lighter stream components and to absorb ethylene and/or propylene into a solvent. The solvent is typically isobutane. The enriched solvent stream from the absorber column is fed to an alkylation reactor, which reacts the dissolved olefin with the isobutane solvent to produce an alkylate product.

Abstract: Provided is a method for preparing 1-butene and propylene including: supplying a C4 mixture stream to a first hydrogenation reactor to convert 1,3-butadiene into 1-butene; supplying a discharge stream from the first hydrogenation reactor to a first distillation column, supplying a lower discharge stream from the first distillation column including 2-butene and n-butane to a metathesis reactor, and supplying an upper discharge stream from the first distillation column including 1-butene and i-butane to a second distillation column; recovering an upper discharge stream the second distillation column including i-butane and recovering 1-butene from a lower discharge stream from the second distillation column; and producing propylene in the metathesis reactor, supplying a discharge stream from the metathesis reactor to a purification unit to recover propylene, and recycling an unreacted material to the metathesis reactor.

Abstract: An object of the present invention is to provide a carbon dioxide treatment apparatus, a carbon dioxide treatment method, and a method of producing carbon compounds, which have high energy efficiency from carbon dioxide capture to reduction and a high carbon dioxide loss reduction effect. In a carbon dioxide treatment apparatus 100 including: a capturing device 1 that captures carbon dioxide; and an electrochemical reaction device 2 that electrochemically reduces carbon dioxide, an absorption unit 12 of the capturing device 1 brings an electrolytic solution A composed of a strong alkaline aqueous solution and carbon dioxide gas into contact with each other to dissolve carbon dioxide in the electrolytic solution A and absorb the carbon dioxide, supplies an electrolytic solution B that has absorbed carbon dioxide between the cathode and the anode of the electrochemical reaction device 2, and electrochemically reduces the dissolved carbon dioxide in the electrolytic solution at the cathode.

Abstract: Methods and systems for purifying a caustic fluid including sulfur are provided.

Abstract: Provided is a method of producing piperylene from a hydrocarbon mixture derived from a petroleum fraction having a carbon number of 5. The hydrocarbon mixture has a piperylene proportional content of not less than 60 mass % and not more than 80 mass % and has a cyclic hydrocarbon proportional content of not less than 20 mass % and not more than 40 mass %. The method of producing piperylene includes a membrane separation step of performing membrane separation of the hydrocarbon mixture using a zeolite membrane to obtain a separated product in which piperylene is enriched.

Abstract: A method for preparing a purified styrene composition with a styrene yield of at least 80%. The method comprises providing a crude composition containing styrene, and subjecting the crude composition to at least one crystallization step. The at least one crystallization step comprises at least one static crystallization stage and at least one dynamic crystallization stage.

Abstract: The invention relates to a method and device for processing industrial and domestic polyethylene and polypropylene waste by destructive distillation.

Abstract: Catalyst fines can be removed from heavy oils, such as marine fuel oils, by introducing an additive in an effective amount to at least partially remove the catalyst fines, where the additive is an oxyalkylated acid-catalyzed alkylphenol formaldehyde resin and/or a Mannich condensate base resin copolymer.