Uop Lcc

William Yanez

Xin X Zhu

Robert E Tsai

Bryan K Glover

Ka Leung Lok

Tokhanh Ngo

William M Hartman

Lisa M Lane

Bryan James Egolf

Jeffrey R Grott

Nitin Prabhakar Chitgopekar

David A Wegerer

Matthew Martin

Phillip F Daly

Steven A Bradley

Michael Van De Cotte

Christopher D DiGiulio

Mary Jo Wier

Sujay R Krishnamurthy

Robert J Sanger

Hari S Bajpai

William D Schlueter

Pelin Cox

Eleftherios Adamopoulos

Hadjira Iddir

Hosoo Lim

Sudipta Ghosh

Jennifer J Ozmen

Amit Goyal

Matthew R Zuraski

Charles Brabson

Falaah Falih

Thuy T Vu

Richard Gaicki

Kristen E Allaire

Joseph Peterson

Haibo Yu

Elie J Fayad

Processes and apparatus for reforming hydrocarbons to reduce the impact of contaminants created by non-catalyst coking. The reaction zone receives sulfur to inhibit the impact, and a control index is used to control the determine conditions with generally lower pressures. Additionally, a compression zone, pressure control zone and combustion zone operation are provided for the operation of the reaction zone at the generally lower pressures.

Processes and apparatuses for operating a hydrocarbon conversion zone

A method for improving the efficiency of a fired heater without an air preheat system is described. The method involves the use of an additional outboard convection section which is separate from the regular convection section of the fired heater. The outboard convection section uses the boiler feed water or an alternate cold sink to reduce the temperature of the flue gas, thereby improving the efficiency.

Method of efficiency enhancement of fired heaters without air preheat systems

Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent into a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is separated for forming an H-rich stream and a first liquid phase hydrocarbon stream. The H-rich stream may be contacted with an adsorbent to form an H-ultra rich stream and a gas stream. C/Chydrocarbons are absorbed from the gas stream with the liquid phase hydrocarbon stream. The gas stream may be contacted with an H/hydrocarbon separation membrane to separate the PSA tail gas stream and form an H-rich permeate stream and an Hdepleted non-permeate residue stream.

Processes for recovering LPG from a reforming-zone effluent

A method and apparatus for processing a hydrocarbon stream are described. The method includes heating a feed stream in a convective bank. The heated feed stream is reacted in a first reaction zone to form a first effluent, which is heated in a first radiant cell. The first radiant cell combusts fuel to heat the first effluent and forms a first exhaust gas. The first exhaust gas is contacted with the convective bank to heat the feed stream. The outlet temperature the heated feed stream from the convective bank is controlled by introducing an additional gas stream into the convective bank. There can be additional reaction zones and radiant heaters.

Reforming process with improved heater integration

Processes and apparatuses for relocating a reforming process heater service into the convection section rely on combining a flue gas recycle quench stream with the radiant section off gases entering the convection section. The uniformity of mixing influences the effectiveness of that quench stream. The more effective the quench stream is, the lower the equipment size required to manage the recycle design.

Process and apparatus for a convection charge heater having a recycle gas distributor

A process is disclosed for an improved catalyst stripping process. The stripping vessel is divided into two zones. The first zone is a stripping zone where a substantial portion of the volatile hydrocarbons is removed at higher severity conditions. After the catalyst is stripped, the stripped catalyst moves to the lower cooling zone to be cooled at lower severity conditions. The flow rates, temperatures, pressures and the stripping and cooling zones are designed to ensure there is minimal volatile hydrocarbons on the catalyst by the time it leaves the stripping vessel. This design enables efficient stripping of volatile hydrocarbons at high severity conditions and eliminates these components from being stripped off elsewhere in the unit causing process and equipment issues.

Methods for catalyst stripping

Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent to form a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is compressed, partially condensed and cooled to form a partially condensed, compressed net gas phase stream. The partially condensed, compressed net gas phase stream is separated to form an intermediate gas phase stream. The intermediate gas phase stream is cooled to form a cooled intermediate gas phase stream. The liquid phase hydrocarbon stream is cooled to form a cooled liquid phase hydrocarbon stream. The cooled intermediate gas phase stream is contacted with the cooled liquid phase hydrocarbon stream to form an H-rich stream and a cooled second intermediate liquid phase hydrocarbon stream that is enriched with C/Chydrocarbons.

Methods and apparatuses for reforming of hydrocarbons including recovery of products using an absorption zone

Apparatuses and methods are provided for regenerating catalyst particles. In one embodiment, a method for regenerating catalyst particles includes passing the catalyst particles through a halogenation zone and a drying zone. The method feeds drying gas to the drying zone and passes a first portion of the drying gas from the drying zone to the halogenation zone. The method includes removing a second portion of the drying gas from the drying zone and injecting a halogen gas into the second portion of the drying gas. Further, the method includes delivering the halogen gas and the second portion of the drying gas to the halogenation zone. In the method, substantially all of the drying gas fed to the drying zone enters the halogenation zone.

Methods and apparatuses for regenerating catalyst particles

Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent to form a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is compressed, partially condensed and cooled, and separated to form an intermediate gas phase stream. The intermediate gas phase stream is cooled to form a cooled intermediate gas phase stream. The liquid phase hydrocarbon stream is cooled to form a cooled liquid phase hydrocarbon stream. The cooled intermediate gas phase stream is contacted with the cooled liquid phase hydrocarbon stream to form an H-rich stream and a cooled second intermediate liquid phase hydrocarbon stream that is enriched with C/Chydrocarbons. The H-rich stream is contacted with an adsorbent to form an H-ultra rich stream.

Methods and apparatuses for reforming of hydrocarbons including recovery of products using an absorption zone and a pressure swing adsorption zone

Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent to form a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is compressed, partially condensed and cooled to form a partially condensed, compressed net gas phase stream. The partially condensed, compressed net gas phase stream is separated to form an intermediate gas phase stream. The intermediate gas phase stream and the liquid phase hydrocarbon stream are combined to form a two-phase combined stream. The two-phase combined stream is cooled and separated to form an H-rich stream and a cooled second intermediate liquid phase hydrocarbon stream that is enriched with C/Chydrocarbons and further comprises Chydrocarbons.

Methods and apparatuses for reforming of hydrocarbons including recovery of products using a recontacting zone

Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent to form a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is separated for forming an H-rich stream and a first intermediate liquid phase hydrocarbon stream. The H-rich stream is contacted with an adsorbent to form an H-ultra rich stream and a pressure swing adsorption (PSA) tail gas stream. The PSA tail gas stream and at least a portion of the liquid phase hydrocarbon stream are combined and cooled to form a cooled two-phase combined stream. The cooled two-phase combined stream is separated into a H, Chydrocarbons-containing gas stream and a cooled second intermediate liquid phase hydrocarbon stream.

Methods and apparatuses for reforming of hydrocarbons including recovery of products using a recovery zone and a pressure swing adsorption zone

A flow connector creates a fluid connection between a port in a wall of a reactor vessel and an axial flow path of the reactor vessel. The flow connector has a wall defining a flow path of the flow connector. The flow path terminates in a first end opening and a second end opening. The first end opening is configured to connect to the axial flow path of the reactor vessel, and the second end opening is configured to connect to the port in a wall of the reactor. The flow connector includes a passageway extending through the wall of the flow connector to provide access to the flow path of the flow connector. A cover is dimensioned for sealing the passageway. The passageway may be dimensioned such that a person may traverse the passageway to access the flow path of the flow connector.

Radial flow process and apparatus

Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent into a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is separated for forming an H-rich stream and a first intermediate liquid phase hydrocarbon stream. The H-rich stream is contacted with an adsorbent to form an H-ultra rich stream and a PSA tail gas stream. The PSA tail gas stream is contacted with an H/hydrocarbon separation membrane to separate the PSA tail gas stream and form an H-ultra rich permeate stream and a PSA tail gas hydrocarbon-containing non-permeate residue stream.

Methods and apparatuses for reforming of hydrocarbons including recovery of products using a recovery zone, a pressure swing adsorption zone, and a membrane separation zone

Apparatuses and methods for reforming of hydrocarbons are presented. In one example, a method comprises burning fuel gas to form a hot flue gas and heat a reforming-zone feedstock that contains (C-C) hydrocarbons to form a heated reforming-zone feed stream. The heated reforming-zone feed stream is partially reformed to form a partially reformed effluent. The partially reformed effluent is advanced through a process heat recovery coil arrangement that is recovering heat from the hot flue gas to form a heated partially reformed effluent. The heated partially reformed effluent is contacted with reforming catalyst at reforming conditions effective to form a reforming reaction-zone effluent. The reforming reaction-zone effluent comprises H, Chydrocarbons including aromatics, and Chydrocarbons.

Growing community of inventors

Crystal Lake, IL, United States of America

William Yanez