Shell Oil Comapny

Hubertus Wilhelmus Albertus Dries

Rene Samson

Leslie Andrew Chewter

Thomas S Dewitz

Ye-Mon Chen

Hendricus Arien Dirkse

Richard Addison Sanborn

Mao Ye

Andreas Ekker

Kee-Khoon Foo

Louis Edward Stein

Hendrik A Dirkse

Anthony Wolfert

Jason Andrew Horwege

Evert Wesker

Ferdinand Johannes Adriaan Geiger

Weiming Peng

Charles Rotchford Galloway

Michiel Alexander Regelink

Jacob Hendrik Bouma

Sebastiaan Christoffel Van Der Heijden

Willem Rozema

Jan Kater

Alex Christian Hoffmann

A catalyst return apparatus is disclosed as well as a riser reactor system comprising the conduit apparatus and a riser reactor, the conduit apparatus comprising a catalyst return conduit and at least two flow control devices in series, each flow control device arranged to control the flow of fluid through the conduit, wherein the length of the catalyst return conduit is more than 20 m. A process for reacting a feedstock in a riser reactor system comprising a riser reactor, the catalyst return apparatus and, and a stage vessel, the process comprising: holding a fluid comprising the catalyst in the at least one stage vessel for a residence time of at least 10 seconds.

Catalyst return apparatus and process for reacting a feedstock

The invention is directed to a vessel for separating solid particles from a gas containing solid particles, said vessel comprising a plate provided with openings across the vessel such that the plate divides the vessel in a first and second space, a number of filter elements extending from the openings into the first space, a vessel opening for receiving the gas containing solid particles, fluidly connected to the first space, an vessel outlet opening for discharge of solids, fluidly connected to the first space and a vessel outlet opening for gas, fluidly connected to the second space. The first space further comprises one or more cyclone separation devices having an inlet fluidly connected to the vessel opening for receiving the gas containing solid particles, a cyclone gas outlet fluidly connected to the first space and a solids cyclone outlet.

Vessel for removing solid particles from gases

Catalyst return apparatus, and process for reacting a feedstock

A riser reactor system comprising a riser reactor and a catalyst feed device for fluidized catalyst, the riser reactor having a riser interior in which catalyst is flowing during normal operation, and the feed device comprising an annular trough surrounding the riser interior, the annular trough having an upstream opening for receiving fluidized catalyst, and at least one substantially circumferential downstream opening providing fluid communication between the trough and the riser interior; and a process for the preparation of an olefinic product using a riser reactor system as claimed in any one of the preceding claims, the process comprising reacting an oxygenate feedstock in the presence of an oxygenate conversion catalyst under oxygenate-to-olefin conversion conditions in the riser reactor system, to obtain the olefinic product.

Riser reactor system and a process for the preparation of an olefinic product

Gas-solids separator comprises a tubular housing, an inlet for introducing a gas-solids mixture at one end of said housing, which inlet is executed such that it imparts a swirl to the gas-solids mixture, a solids outlet opening at the opposite end of said housing, and a co-axially positioned tubular gas outlet conduit placed at an end of said housing, which separator further comprises a vortex stabilizer, comprising a pin placed on a stabilizing plate, in which separator the pin runs along the axis of the tubular housing and in which a passageway is provided through the stabilizer plate and the pin.

Gas-solids separator

A process for cracking a hydrocarbon feed in a reactor assembly comprising: a reactor vessel; a solid catalyst inlet by which catalyst is introduced and a solid catalyst outlet by which catalyst is removed from the reactor vessel; a plurality of feed nozzles by which feed is introduced at the bottom of the vessel; a product outlet for removing a product mixture of gas and solid catalyst at the upper part of the reactor; at least one partition plate, that divides the interior of the reactor vessel into two or more compartments, wherein the partition plate intersects the solid catalyst inlet.

Process for cracking a hydrocarbon feed

Process to separate particles from a particles-containing gas stream, by subjecting the particles-containing gas stream to a centrifugal separation step, wherein the particles-containing gas stream is separated in a gas rich flow and a particles-rich flow and wherein the particles-rich flow is cooled from a temperature in the range from 600 to 800&#xb0; C. to a temperature in the range from 200 to 450&#xb0; C. before it is subjected to a second separation step, wherein particles are separated from the particles-rich flow.

Process to separate particles from a particles-containing gas stream

Catalytic cracking riser reactor extending between an inlet for hydrocarbonaceous feed and catalyst particles and an outlet for discharging cracked products and spent catalyst particles, which riser reactor has been provided with at least one contacting device, wherein the contacting device comprises a composite of refractory material and a metal structure, which metal structure is connected to the outer wall of the riser reactor. If more contacting devices have been provided, they are preferably axially spaced apart and are disposed along the inner surface of the riser reactor.

Catalytic cracking riser reactor

Swirl tube separator for separating solids from a gas-solid containing feed comprising a tubular housing, an inlet for introducing a gas-solids mixture at one end of said housing, a solids outlet opening at the opposite end of said housing, and a co-axial positioned tubular gas outlet conduit placed at an end of said housing, wherein along the axis of the tubular housing a vortex extender pin is present.

Swirl tube separator

A fluid catalytic reactor vessel having at its upper end a single centrally positioned primary cyclone having a gas-solids inlet fluidly connected to the downstream end of a fluid catalytic riser, which riser is positioned externally from a fluid catalytic reactor vessel. The primary cyclone is further provided with a gas outlet conduit at its upper end fluidly connected to one or more secondary cyclone separators, which secondary cyclone separators are positioned in the space between the centrally positioned primary cyclone and the wall of the reactor vessel and which secondary cyclones have means to discharge solids to the lower end of the reactor vessel and means to discharge a gaseous stream poor in solids to a gas outlet of the reactor vessel. The primary cyclone is further provided with a primary stripping zone at its lower end and means to discharge pre-stripped solids from the primary cyclone to the lower end of the reactor vessel. The reactor vessel further comprises at the lower end of reactor vessel a secondary stripping zone is and means to discharge stripped solids from the reactor vessel.

FCC reactor

A filter assembly having a plurality, preferably at least substantially vertically mounted, longitudinal elongated filter elements that are suitable for separating fluid from solid particles, having an open upper end sealed into a sealing device and a closed bottom end attached to a filter support that is mounted on a filter grid, in which the filter grid has a plurality of grid elements together forming a grid, wherein at least a portion of the cross-section of the grid elements between two adjacent filter elements is pointiform. The invention further pertains to a filter grid and a filter vessel containing at least one filter assembly.

Filter assembly comprising filter elements and a filter grid

The invention is related to a fluid catalytic cracking (FCC) reactor having an elongated reactor riser and a reactor vessel. The reactor vessel has a dense phase fluidized stripping zone and a catalyst outlet at its lower end and at its upper end a cracked vapor outlet and a cyclone separator fluidly connected to the outlet of the reactor riser. The cyclone separator is provided with a dipleg which lower open end terminates below the upper bed level of the dense phase fluidized stripping zone.

FCC apparatus

A cyclone separator provided with an inlet for receiving gas and solid particles, + a gas outlet at its upper end and a lower tubular part, wherein the lower tubular part is provided with a closed lower end, through which closed lower end a substantially vertical particle withdrawal conduit extends from a position below the closed lower end to a position in the tubular part and below the inlet for receiving gas and solid particles, said conduit being provided with openings to withdraw solid particles from the cyclone separator and wherein said conduit has a smaller cross-sectional area than the lower tubular part, thereby defining a space between conduit and inner wall of the lower tubular part, wherein in the lower part of said space main means to add a primaxy fluidizing medium are present.

Cyclone separator

A process to recover energy from a gas having a temperature of above 650&#xb0; C. and an absolute pressure of more than 1.7 bar and having non-solidified alkali containing compounds and particles by performing the following steps:

Process to recover energy from hot gas

Apparatus for separating solid particles from a suspension of solid particles and gas, wherein the apparatus comprises: (i) a vertical primary cyclone vessel having a tubular housing comprising of a tubular wall section provided with a tangentially arranged inlet for receiving the suspension, and a cover which closes the upper end of the tubular wall section; wherein the cover is provided with an axial circular opening which opening serves as a gas inlet opening of a gas outlet conduit; (ii) one or more secondary gas-solids cyclone separators which are fluidly connected with the gas outlet conduit of the primary cyclone.

Growing community of inventors

Amsterdam, Netherlands

Hubertus Wilhelmus Albertus Dries