Abstract: Disclosed are methods and systems for removing reactive carbonyl monomers which can polymerize to produce red oil. In an embodiment the method may include cracking a hydrocarbon stream in a fluidized catalytic cracker to produce a cracked hydrocarbon stream comprising carbonyl compounds; separating hydrocarbon components from the cracked hydrocarbon stream in a debutanizer column to form a debutanizer overhead LPG stream comprising the carbonyl compounds; introducing the debutanizer LPG overhead stream into a carbonyl removal unit comprising a metal bisulfite bed; reacting the carbonyl compounds in the debutanizer overhead LPG stream to form a carbonyl adduct with the metal bisulfite; and withdrawing a first LPG product stream from the carbonyl removal unit.

Abstract: A method may include: introducing triglycerides, hydrogen, and a sulfiding agent into a hydroprocessing reactor; reacting the triglycerides with the hydrogen in the hydroprocessing reactor to form at least paraffins; separating at least a portion of a hydroprocessing reactor effluent from the hydroprocessing reactor in a first phase separator to produce a first sour water stream comprising water and a first quantity of hydrogen sulfide and a paraffin stream comprising at least a portion of the paraffins; introducing the first sour water stream into a sour water stripper and stripping the first sour water stream to form a gaseous stream comprising at least a portion of the first quantity of the hydrogen sulfide from the first sour water stream; and contacting the gaseous stream with an acidified wash water in an ammonia removal unit to produce an aqueous ammonia solution stream and a treated gaseous hydrogen sulfide stream; and introducing the treated hydrogen sulfide stream into the hydroprocessing reactor.

Abstract: A method may comprise: feeding a backend deethanizer overhead stream comprising ethylene, ethane, and acetylene to a hydrogenation reactor; hydrogenating at least a portion of the acetylene in the backend deethanizer overhead stream to form a reactor effluent stream comprising ethylene, ethane, and green oil; feeding the reactor effluent stream to a gas/liquid coalescer; and removing at least a portion of the green oil from the reactor effluent stream to produce a cleaned effluent stream.

Abstract: Disclosed are methods and systems for removing a highly reactive polymer precursor such as carbonyls from a liquid hydrocarbon stream. Embodiments may disclose a method for removal of carbonyls from a liquid hydrocarbon stream comprising the steps of providing a liquid hydrocarbon stream containing carbonyls, providing a liquid bisulfite stream comprising an alkali metal bisulfite, and contacting the liquid hydrocarbon stream and the liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the alkali metal bisulfite to form a solid adduct that is soluble in the bisulfite solution.

Abstract: A method may comprise: feeding a backend deethanizer overhead stream comprising ethylene, ethane, and acetylene to a hydrogenation reactor; hydrogenating at least a portion of the acetylene in the backend deethanizer overhead stream to form a reactor effluent stream comprising ethylene, ethane, and green oil; feeding the reactor effluent stream to a gas/liquid coalescer; and removing at least a portion of the green oil from the reactor effluent stream to produce a cleaned effluent stream.

Abstract: Disclosed are methods and systems for removing a highly reactive polymer precursor such as acetaldehyde and acetone from a hydrocarbon gas stream. Embodiments may disclose a method for removal of carbonyls comprising providing a hydrocarbon gas stream comprising a carbonyl, providing a liquid bisulfite stream, and contacting the hydrocarbon gas stream and liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the bisulfite to form a solid adduct that is soluble in the liquid bisulfite stream.

Abstract: A method comprising: introducing a refinery off gas stream into an oil absorber wherein the refinery off gas stream comprises H2, N2, O2, methane, ethane, ethylene, propane, propylene, and C4+; introducing a solvent into the oil absorber; counter-currently contacting the refinery off gas stream and the solvent in the oil absorber; generating an absorber overhead stream comprising H2, N2, O2, and methane; generating an absorber bottoms stream comprising the solvent wherein ethane, ethylene, propane, propylene, and C4+ are dissolved in the solvent; introducing the absorber bottoms stream into a solvent regenerator and generating an overhead stream comprising ethane, ethylene, propane, propylene, and C4+; and introducing the overhead stream into a C2-C3 splitter that generates a dilute ethylene product stream and a bottoms product stream, wherein the dilute ethylene product stream comprises ethylene and ethane, and wherein the bottoms product stream comprises propane, propylene, and C4+.

Abstract: A method for removing dissolved hydrocarbons from water may comprise: cracking a mixed hydrocarbon stream in a cracking furnace to produce a cracked gas effluent; quenching the cracked gas effluent in a quench water tower with quench water to produce a quenched gas stream and a spent quench water stream comprising water, tars, heavy aromatic hydrocarbons, gasoline, dissolved oil, and dispersed oil; feeding the spent quench water stream to a liquid-liquid extraction unit wherein the liquid-liquid extraction unit removes at least a portion of the dissolved oil and produce an extracted effluent stream.

Abstract: A method for removing dissolved hydrocarbons from water may comprise: cracking a mixed hydrocarbon stream in a cracking furnace to produce a cracked gas effluent; quenching the cracked gas effluent in a quench water tower with quench water to produce a quenched gas stream and a spent quench water stream comprising water, tars, heavy aromatic hydrocarbons, gasoline, dissolved oil, and dispersed oil; feeding the spent quench water stream to a liquid-liquid extraction unit wherein the liquid-liquid extraction unit removes at least a portion of the dissolved oil and produce an extracted effluent stream.

Abstract: Disclosed are methods and systems for removing a highly reactive polymer precursor such as acetaldehyde and acetone from a hydrocarbon gas stream. Embodiments may disclose a method for removal of carbonyls comprising providing a hydrocarbon gas stream comprising a carbonyl, providing a liquid bisulfite stream, and contacting the hydrocarbon gas stream and liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the bisulfite to form a solid adduct that is soluble in the liquid bisulfite stream.

Abstract: Disclosed are methods and systems for removing a highly reactive polymer precursor such as acetaldehyde and acetone from a hydrocarbon gas stream. Embodiments may disclose a method for removal of carbonyls comprising providing a hydrocarbon gas stream comprising a carbonyl, providing a liquid bisulfite stream, and contacting the hydrocarbon gas stream and liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the bisulfite to form a solid adduct that is soluble in the liquid bisulfite stream.

Abstract: The present invention relates to a device that conditions high entrance velocity, superheated feed gas, which include some high boiling components, for example, asphaltenes and poly-nuclear aromatics that tend to coke upon condensation and exposure to the superheated feed gas temperature. Also included in superheated feed gas are solid catalyst fines, from a single or multiple feed nozzles to a quiescent flow regime for uniform distribution of the gases, to a contact device within the Main Fractionator (MF) column.

Abstract: Disclosed are methods and systems for removing a highly reactive polymer precursor such as carbonyls from a liquid hydrocarbon stream. Embodiments may disclose a method for removal of carbonyls from a liquid hydrocarbon stream comprising the steps of providing a liquid hydrocarbon stream containing carbonyls, providing a liquid bisulfite stream comprising an alkali metal bisulfite, and contacting the liquid hydrocarbon stream and the liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the alkali metal bisulfite to form a solid adduct that is soluble in the bisulfite solution.

Abstract: Disclosed are methods and systems for removing a highly reactive polymer precursor such as acetaldehyde and acetone from a hydrocarbon gas stream. Embodiments may disclose a method for removal of carbonyls comprising providing a hydrocarbon gas stream comprising a carbonyl, providing a liquid bisulfite stream, and contacting the hydrocarbon gas stream and liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the bisulfite to form a solid adduct that is soluble in the liquid bisulfite stream.

Abstract: The present invention relates to a device that conditions high entrance velocity, superheated feed gas, which include some high boiling components, for example, asphaltenes and poly-nuclear aromatics that tend to coke upon condensation and exposure to the superheated feed gas temperature. Also included in superheated feed gas are solid catalyst fines, from a single or multiple feed nozzles to a quiescent flow regime for uniform distribution of the gases, to a contact device within the Main Fractionator (MF) column.

Abstract: The present invention relates to a device that conditions high entrance velocity, superheated feed gas, which include some high boiling components, for example, asphaltenes and poly-nuclear aromatics that tend to coke upon condensation and exposure to the superheated feed gas temperature. Also included in superheated feed gas are solid catalyst fines, from a single or multiple feed nozzles to a quiescent flow regime for uniform distribution of the gases, to a contact device within the Main Fractionator (MF) column.

Abstract: The present invention relates to a device that conditions high entrance velocity, superheated feed gas, which include some high boiling components, for example, asphaltenes and poly-nuclear aromatics that tend to coke upon condensation and exposure to the superheated feed gas temperature. Also included in superheated feed gas are solid catalyst fines, from a single or multiple feed nozzles to a quiescent flow regime for uniform distribution of the gases, to a contact device within the Main Fractionator (MF) column.

Abstract: Process and systems for converting lower molecular weight alkanes to higher molecular weight hydrocarbons that include fractionation of brominated hydrocarbons, wherein the brominated hydrocarbons are formed by reaction of the lower molecular weight alkanes with bromine.

Abstract: Processes and systems for drying liquid bromine utilizing two fractionators to produce a substantially dry liquid bromine stream and a substantially bromine-free water stream. Wet bromine liquid may be conveyed to a first fractionator wherein a substantially dry bromine liquid is produced, while a vapor stream from the first fractionator may be condensed into a first liquid phase comprising bromine saturated with water and a second liquid phase comprising water saturated with bromine. The water saturated with bromine may be conveyed to a second fractionator to produce at least substantially bromine-free water.

Abstract: Process and systems for converting lower molecular weight alkanes to higher molecular weight hydrocarbons that include demethanization of brominated hydrocarbons, wherein the brominated hydrocarbons are formed by reaction of the lower molecular weight alkanes with bromine.