Sabic Global Technologies B.v.

Sabic Innovative Plastics IP B.v.

Arkady Samuilovich Dykman

Mark Erik Nelson

Andrey Vladimirovich Zinenkov

Victor Vladimirovich Pinson

Dmitrij Nikolayevich Zhukov

Ilja Nikolayevich Grebenshchikov

Victor Vladimiovich Pinson

Alexey Leonidovich Moskvin

Lubov Borisovna Drozdova

Victor Vladimrovich Pinson

A method for oxidizing a hydrocarbon includes feeding an oxidant to a top portion of a reactor; reacting the hydrocarbon with the oxidant in the reactor to obtain a reaction product stream, the reaction product stream exiting a reactor outlet at a bottom portion of the reactor; and recycling a portion of the reaction product stream to the top portion of the reactor; and introducing the oxidant into an oxidation liquid comprising the portion of the reaction product stream recycled to the top portion of the reactor to form a reaction media stream entering a reactor inlet at the top portion of the reactor. A pressure of the reactor outlet exceeds a pressure of the reactor inlet by at least 5%. The reaction media stream moves vertically downwards in the reactor.

Method and system for oxidizing cumene and hydrocarbons

A sampling system for an optical cell containing a process fluid comprises a first bi-directional pump in fluid communication with a sampling path and a second bi-directional pump in fluid communication with the first bi-directional pump and a storage vessel. The first bi-directional pump is configured to withdraw a first sample of the process fluid and to cause the first sample to flow towards the first bi-directional pump. The second bi-directional pump is configured to withdraw a second sample from the storage vessel and to cause the second sample to move toward and mix with the first sample. A first rate of withdraw of the first sample is greater than a second rate of movement of the second sample toward the first sample, and the difference between the first rate and the second rate correspond to a pre-determined ratio of the first sample mixed with the second sample.

Optical analysis and sampling systems

A method for the manufacture of a sulfonated phenol for use as a cumene hydroperoxide decomposition catalyst can comprise: combining phenol and a sulfonating agent at a first temperature that is 1&#xb0; C. to 15&#xb0; C. higher than a melting temperature of the phenol, to form a reaction mixture at the first temperature; reducing the first temperature of the reaction mixture to a second temperature that is 10 to 40&#xb0; C. lower than the first temperature; and forming the sulfonated phenol at the second temperature.

Optimization of O-sulfonated phenol production for cumene hydroperoxide cleavage

In an embodiment, an optical system comprises an optical cell having an interior fluid chamber defined by an interior surface of a housing, a process inlet disposed in the housing and in fluid communication with the interior fluid chamber, and a process outlet disposed in the housing and in fluid communication with the interior fluid chamber, wherein the process inlet and process outlet facilitate the flow of a fluid through the interior fluid chamber. A sampling outlet can be disposed in the housing and in fluid communication with the interior fluid chamber. A first bi-directional pump can be in fluid communication with the sampling outlet and a first storage vessel and can be configured to withdraw a first sample of the fluid via the sampling outlet and to cause the first sample to flow into the first storage vessel.

Systems and methods for the production of phenol and acetone from cumene oxidation products. One method includes reacting cumene and an oxidizing agent to produce a cumene oxidation product including cumene hydroperoxide and dimethyl benzyl alcohol, converting at least a portion of the dimethyl benzyl alcohol to cumene hydroperoxide by reacting the at least a portion of the dimethyl benzyl alcohol with hydrogen peroxide in both an organic phase and an aqueous to produce a converted cumene oxidation product, and cleaving the converted cumene oxidation product to produce an output product including one or more of phenol, acetone, and alpha-methylstyrene.

Controlled conversion of dimethyl benzyl alcohol to cumene hydroperoxide formed during the cumene oxidation process

The disclosure concerns methods comprising forming a phenol and acetone mixture from decomposition of a cumene hydroperoxide or a phenol, acetone, and AMS from the decomposition of a mixture containing dicumyl peroxide in a system comprising one or more reactors where at least a portion of an inner surface of the one or more reactors has a polymer coating and wherein the coating inhibits build-up of a fouling precipitate on the coated inner surface of the one or more reactors as compared to such build-up in the absence of the coating.

Coating to inhibit fouling of reactors for cumene hydroperoxide cleavage

An apparatus for oxidation of a C-Calkylbenzene reactant to a C-Calkylbenzene hydroperoxide product, the re-actor can comprise: a flow reactor comprising a reactant inlet, an oxidate product outlet, wherein the reactor is configured to provide a liquid flow from the reactant inlet to the product outlet, a gas inlet configured to introduce an oxygen-containing gas into the reactor, and an inlet sparger configured to flow gas bubbles comprising the oxygen-containing gas within the liquid flow, and wherein: the inlet sparger is configured to flow the gas bubbles having a diameter of 1.0 mm to 5.0 mm over a gas bubble residence time from 1 to 200 seconds, and/or the inlet sparger configured to flow the gas bubbles such that greater than or equal to 80% of the gas bubbles do not coalesce into larger bubbles over a gas bubble residence time of 1 to 200 seconds.

Alkylbenzene hydroperoxide production using dispersed bubbles of oxygen containing gas

A method of producing phenol and acetone can include: alkylating benzene with a Calkyl source in the presence of a zeolite catalyst to produce a Calkylbenzene; oxidizing the Calkylbenzene in the presence of an oxygen containing gas to produce a Calkylbenzene hydroperoxide; cleaving decomposing the Calkylbenzene hydroperoxide in the presence of an acid catalyst to produce phenol, a Cketone, and undesirable side products such as, but not limited to acetaldehyde, DMBA, acetophenone, AMS, AMS dimers, unidentified heavies, or a combination including at least one of the foregoing; and monitoring a concentration of the Calkylbenzene hydroperoxide in a process stream of a reactor in real time at a temperature and a pressure of the process stream; and in real time, controlling a parameter of the reactor and/or the cleaving decomposing in response to the concentration of the Calkylbenzene hydroperoxide.

Method for controlling cleavage of hydroperoxides of alkylaromatic hydrocarbons

An apparatus and method for spectral analysis of immiscible phases are disclosed. A flow cell for online absorption measurements of immiscible process phases can comprise: a body containing an inlet window and an outlet window in operable communication with a measurement instrument; and a series of partitions that divide the inside of the flow cell into three (3) or more vessels that have an inlet and an outlet, wherein the vessels are connected in series with one another. Optionally, the first vessel is equipped with a porous membrane to facilitate the separation of immiscible process phases.

Flow cell for measuring electromagnetic radiation absorption spectra in a continuously flowing immiscible liquid(s) or liquids with entrained gas phases

A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of a) reacting the cumene hydroperoxide mixture with a 2-hydroxybenzenesulfonic acid catalyst having a concentration of 0.1 to 1 mmol/L acid catalyst to form a second mixture comprising phenol, acetone and dicumyl peroxide in a first stage and decomposing the second mixture in a second stage to produce a third mixture comprising phenol and acetone.

Method for producing phenol and acetone

A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, comprises the steps of: wherein an amount of phenol approximately equal to the amount of distilled from the cumene hydroperoxide mixture is added to the cumene hydroperoxide mixture before the reacting step b). The amount of hydroxyacetone is reduced, thereby, improving the quality of commercial-grade phenol and the products made from the phenol.

Growing community of inventors

St. Petersburg, Russia

Arkady Samuilovich Dykman