Janus Technology Solutions, LLC

Stone & Webster Engineering Corp.

Stone & Webster Process Technology, Inc.

Technip Process Technology, Inc.

Marathon Gtf Technology, Ltd.

Gtc Technology US LLC

Sabah A Kurukchi

Joseph M Gondolfe

Yijun Liu

Kenneth Jack Fewel, Jr

Kenneth Edward Krug

Anand Moodley

Stephen Z Masoomian

Ming Wang

John A Stippick

Kenneth J Fewel, Jr

Jr Kenneth J Fewel

Min Wang

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.

Chemisorption of carbonyls from liquid phase hydrocarbons using solid sodium bisulfite

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. The aqueous ammonia solution stream is neutralized with an acid to form an ammonium salt solution product.

Reduction of SOx and NOx emissions from renewable diesel plants

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.

Green oil removal from ethylene plants

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.

Removal of carbonyls from liquid phase hydrocarbon streams

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.

Removal of carbonyls from gaseous hydrocarbon streams

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.

Dissolved oil removal from quench water of gas cracker ethylene plants

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.

Gas distributor for heat exchange and/or mass transfer column

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.

Processes and systems for fractionation of brominated hydrocarbons in the conversion of natural gas to liquid hydrocarbons

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.

Processes and systems for drying liquid bromine

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.

Processes and systems for demethanization of brominated hydrocarbons

The present invention provides a process for treating a hydrocarbon feed gas stream containing acid gases (CO, HS and mercaptans) by contacting the feed gas stream in a multi-section caustic tower, the bottom sections employing a recirculating caustic solution to remove the COand HS down to low single digits parts per million concentration and the upper sections employing a stronger caustic solution on a once-through basis to produce a mercaptans depleted gas stream.

Removal of acid gases and sulfur compounds from hydrocarbon gas streams in a caustic tower

A mass and/or heat transfer column is provided with a multiphase vapor distributor with distributes a vapor stream about the inner periphery of the column.

Three phase vapor distributor

A process for pretreating a oily/water stream for closed loop dilution steam production within an ethylene plant using countercurrent multi-stage extraction to remove both free and dissolved organic solutes from in-situ (net) quench water with an organic solvent to yield an aqueous raffinate containing only residual amounts of organic solute. The raffinate is steam stripped to remove the residual organic solutes, yielding a pretreated quench water stream substantially free of organic material. The pretreated quench water is suitable for reuse to generate dilution steam (without fouling). The (solvent) extract from extraction is regenerated in a solvent regenerator having an overhead stream for purging light ends, a bottom stream for purging heavy ends, and a heart-cut side stream for recycling solvent to the extractor. Alternatively, solvent may be taken as a heart-cut or equivalent from an existing ethylene and/or refinery plant process stream, once passed through the multi-stage solvent extraction unit, and then returned to the processing unit of the plant from which it was taken.

Growing community of inventors

Houston, TX, United States of America

Sabah A Kurukchi