Uop Lcc

Michael Van De Cotte

Ian G Horn

Stanley Joseph Frey

James W Harris

Adam J Kanyuh

Steven Kozup

Paul Alvin Sechrist

Paolo Palmas

Xin X Zhu

David A Wegerer

Richard A Johnson, Ii

Donald A Eizenga

Phillip F Daly

Bradley P Russell

Steven A Bradley

William Yanez

Christopher D DiGiulio

Ka Leung Lok

Bryan James Egolf

Sujay R Krishnamurthy

Hari S Bajpai

Joao Jorge Da Silva Ferreira Alves

Jeffrey R Grott

William J Lechnick

Nagaraju Palla

Lamar A Davis

William Macallan Cady

Stephen Thomas King

Hosoo Lim

Lewis H Pettengill

Matthew R Zuraski

Falaah Falih

Nasser Khazeni

Kristen E Allaire

Joseph Peterson

Haibo Yu

Elie J Fayad

Processes and apparatuses for operating a centrifugal gas compressor. A storage tank containing a liquid buffer material is provided and used to offset density fluctuations in the gas stream passed to the compressor. The storage tank may contain a component of the high-pressure gas stream provided by the compressor, such as carbon dioxide.

Processes and apparatuses for operating a gas compressor

A start-up method for contacting a feed stream with fluidized catalyst is disclosed. The start-up method comprises reacting a feed stream over a catalyst to produce a gas stream and spent catalyst. The gas stream is separated from the spent catalyst. The separated gas stream is passed to a compressor. The operating condition associated with the compressor is measured. Based on the measured operating condition associated with the compressor, one or both of a supplemental hydrocarbon stream and a supplemental hydrogen gas stream is provided to the compressor to meet a predetermined operating condition associated with the compressor.

Start-up method for contacting a feed stream with fluidized catalyst

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 plant or refinery may include equipment such as condensers, regenerators, distillation columns, rotating equipment, compressors, pumps, turbines, or the like. Different operating methods may impact deterioration in equipment condition, thereby prolonging equipment life, extending production operating time, or providing other benefits. Mechanical or digital sensors may be used for monitoring equipment to determine whether problems are developing. For example, sensors may be used in conjunction with one or more system components to perform invariant mapping, monitor system operating characteristics, and/or predict pressure, volume, surges, reactor loop fouling, gas quality, or the like. An operating condition (e.g., of one or more pieces of equipment in the plant or refinery) may be adjusted to prolong equipment life or avoid equipment failure.

Sensor location for rotating equipment in a petrochemical plant or refinery

Rotating equipment in a petrochemical plant or refinery

Early surge detection of rotating equipment in a petrochemical plant or refinery

Reactor loop fouling monitor for rotating equipment in a petrochemical plant or refinery

A turbine with a supersonic separator disposed upstream of the turbine. The supersonic separator imparts a swirl on a vapor stream to remove any heavier components. A superheated vapor stream from the supersonic separator is passed through the turbine to reduce the pressure of the vapor stream. At the same time, electricity is generated by the superheated vapor stream via a turbine wheel. The turbine and the supersonic separator can be integrally formed, or they can be discrete components.

Turbine with supersonic separation

Processes and apparatus for recovering energy from a petroleum, petrochemical, or chemical process are disclosed. The process comprises providing a fluid process stream in a petroleum, petrochemical, or chemical process zone having a direct current power input; controlling a flow rate of the process stream by directing at least a portion of the process stream through a first power-recovery turbine to generate electric power as direct current therefrom; and providing the recovered direct current to the direct current power input of the process zone.

Use of recovered power in a process

Using molecular weight and invariant mapping to determine performance of rotating equipment in a petrochemical plant or refinery

Methods and apparatus for recovering power in a hydroprocessing process are described. The method involves the use of a power-recovery turbine in place of, or in addition to, a control valve. A hydrocarbon feed stream is combined with a portion of a hydrogen stream. The combined stream is heated, and the heated stream is introduced into a hydroprocessing reaction zone having at least two beds. The heated stream is contacted with a first hydroprocessing catalyst to form a first hydroprocessed stream. At least part of a portion of the hydrogen stream is combined with the first hydroprocessed stream to form a first quenched hydroprocessed stream. The first quenched hydroprocessed stream is contacted with a second hydroprocessing catalyst to form a second hydroprocessed stream. At least a portion of the second portion of the hydrogen stream is directed through a power-recovery turbine to generate electric power.

Hydroprocessing unit with power recovery turbines

Determining quality of gas for rotating equipment in a petrochemical plant or refinery

A power generation process for use in a processing unit that includes the steps of: using a regenerator to produce a flue gas stream; removing catalyst particles from the flue gas stream; routing the flue gas stream to a combustor/expander unit after performing the step of removing catalyst particles; and using rotation of the turbine of the combustor/expander unit as a source of rotary power. Preferably, the combustor/expander unit includes a combustion chamber and a power recovery turbine housed within a single casing. In certain embodiments, the flue gas stream is routed between the regenerator and the combustor/expander without passing through a compressor.

System and process for recovering power and steam from regenerator flue gas

Systems and processes for heat recovery associated with the separation of hydrocarbon components. Two compressors are used to compress a portion of an overhead vapor stream from a fractionation column. A pressure of the liquid portion of the compressed overhead is reduced and used to recover heat from an overhead of another separation zone having a fractionation column. Once the heat has been recovered the stream is recompressed. The recovered heat may be removed from the recompressed stream in a reboiler of another fractionation column. The fractionation columns may comprise a deethanizer stripper, propane-propylene splitter, and a depropanizer column.

Process for recovering heat from a hydrocarbon separation

Growing community of inventors

Palatine, IL, United States of America

Michael Van De Cotte