Uop Lcc

Donald A Eizenga

Richard K Hoehn

Hari S Bajpai

James W Harris

Xin X Zhu

Stanley Joseph Frey

Keith Allen Couch

James T Wexler

David A Wegerer

Trung S Pham

Jan De Ren

Saadet Ulas Acikgoz

Paul C Steacy

Massimo Sangalli

Charles P Luebke

Andrea G Bozzano

Daniel L Ellig

Mark Van Wees

Steven A Bradley

Michael Van De Cotte

Vedula Kasipati Murty

Gautam Pandey

William M Hartman

William J Whyman

Ashish Mathur

Yoga R Ayar

Thomas A Ebner

Jorge Charr

Jason Lee Stahlman

Joel Joshua Kaye

Ralph Charles Norton

Mark W Mucek

Benjamin L Tiemens

Rajesh Sivadasan

Ralph P Davis

Ian Clarke

Raul A Ohaco

Daliah Papoutsis

Shixue Wen

Samarjit Singh

Saravanaperumal Sivaprakasam

Rafael Alcala

Cameron Kardel

Christina L Haasser

Zudtky Wisecarver

Kevin Carnes

Alexander Green

David E Bachmann

Jose R Rojas

Michael J Pedersen

A control process and apparatus provide feed forward control of stoichiometric proportions of hydrogen sulfide and ammonia to a thermal oxidizer and an ammonia scrubber, respectively. To account for unmeasured or uncalculated sulfur feed to the thermal oxidizer, a feed back measurement of sulfur dioxide and ammonia concentration is used to correct the flow rate of hydrogen sulfide to the thermal oxidizer and/or ammonia to the ammonia scrubber.

Process for controlling hydrogen sulfide and ammonia flow rates

The process produces a diesel stream from a biorenewable feedstock by hydrotreating to remove heteroatoms and saturate olefins. The recycle gas is recycled to the hydrotreating reactor without removing hydrogen sulfide, which is needed in the biorenewable feed to keep the hydrotreating catalyst active. A purification unit can be utilized on a purge gas stream to purify the gas and improve hydrogen concentration in the recycle gas when added to the recycle gas.

Process for producing diesel fuel from a biorenewable feed with recycled sulfur

A process for hydrotreating a feed stream comprising a biorenewable feedstock is disclosed. The process comprises hydrotreating the feed stream in the presence of a hydrotreating hydrogen stream and a hydrotreating catalyst to provide a hydrotreated stream. The hydrotreated stream is separated into a hydrotreated liquid stream and a hydrotreated gas stream. The hydrotreated liquid stream is subjected to stripping to provide a stripper off-gas stream. At least a portion of the stripper off-gas stream is contacted with a caustic stream to provide a sulfur-lean gas stream and a sulfur-rich caustic stream. The sulfur-rich caustic stream is further treated to provide a treated gas stream.

Process for hydrotreating a feed stream comprising a biorenewable feedstock with treatment of an off-gas stream

A hydrocracking process for maximization of naphtha while producing base oil is disclosed. The hydrocracking process comprises hydrocracking a hydrocarbon feed stream in a hydrocracking unit in the presence of a hydrogen stream and a hydrocracking catalyst to produce a hydrocracked effluent stream. The hydrocracked effluent stream is separated in a separator to provide a vapor hydrocracked stream and a liquid hydrocracked stream. The liquid hydrocracked stream is fractionated to provide a naphtha stream, a kerosene stream, a diesel stream and a first unconverted oil stream. A recycle stream comprising a portion of the kerosene stream, a portion of the diesel stream, and a portion of the first unconverted oil stream is recycled to the hydrocracking unit to provide a second unconverted oil stream. A remaining portion of the first unconverted oil stream is withdrawn for base oil production.

Hydrocracking process for maximization of naphtha

A process for reducing pressure of a vapor stream used for reducing a temperature or pressure in a reactor. A pressure of a vapor stream is reduced with a turbine to provide a lower pressure vapor stream. The vapor stream rotates a turbine wheel within the turbine. The turbine wheel is configured to transmit rotational movement to an electrical generator. Thus, electricity is generated with the turbine. The lower pressure vapor stream is injected into a reactor and reduces a temperature in the reactor or reduces a partial pressure of a hydrocarbon vapor in the reactor.

Power recovery from quench and dilution vapor streams

A process for reducing pressure of a vapor stream wherein the vapor stream rotates a turbine wheel within the turbine to transmit rotational movement to an electrical generator and generate electricity. The resulting lower pressure vapor stream reduces a partial pressure of a hydrocarbon vapor or is injected into a reactor to reduce a temperature in the reactor. A recovered electric power measuring system comprises at least one processor; at least one memory storing computer-executable instructions; and at least one receiver configured to receive data from a sensor on an electrical powerline connected to a generator of a turbine, the turbine in fluid communication with a vapor stream wherein the turbine reduces the pressure of the vapor stream and the resulting lower pressure vapor stream is injected into a reactor to reduce a temperature in the reactor or to reduce a partial pressure of hydrocarbon vapor in the reactor.

System for power recovery from quench and dilution vapor streams

Processes for converting existing refinery units and equipment to enable processing of renewable triglyceride feedstock to provide hydrocarbon fuels. Originally, the existing refinery units may have bene configured as hydrotreating, hydrocracking, fixed bed reforming, or isomerization units for a petroleum based feedstock. Hydrogen from a second reaction zone may be provide to the first reaction zone, without or without the use of a compressor.

Process for reconfiguring existing treating units in a refinery

A process and apparatus for hydrocracking a hydrocarbon stream that feeds a cold stripped stream and a hot stripped stream to a prefractionator from which a prefractionated overhead stream and a prefractionated bottoms stream are passed to a product fractionation column. The product fractionation column may produce three products, light naphtha, heavy naphtha and distillate omitting the need for a naphtha splitter column. Data may be received from a stream in fluid communication with the foregoing process and apparatus.

Process and apparatus for hydrocracking with prefractionator for stripped streams

Processes for recovering electrical power from a process unit waste heat steam generation system are described. A power-recovery turbine reduces the pressure of a stream of superheated steam to a pressure lower than that needed by the steam reboiler for use in other process units or equipment in the plant.

Energy-recovery turbines for gas streams

A process and apparatus for hydrocracking a hydrocarbon stream that strips a liquid hydrocracked stream in a stripping column to provide a stripping overhead stream and a stripped stream. The stripping overhead stream fractionated to provide a light fractionated overhead stream, a light fractionated intermediate stream and a light fractionated bottoms stream in a single light fractionation column omitting the need for a separate deethanizer column.

Process and apparatus for hydrocracking with light fractionation column with three products

A process and apparatus for hydrocracking a hydrocarbon stream that feeds a cold stripped stream and a hot stripped stream to a prefractionator from which a prefractionated overhead stream and a prefractionated bottoms stream are passed to a product fractionation column. The product fractionation column may produce three products, light naphtha, heavy naphtha and distillate omitting the need for a naphtha splitter column.

A process and apparatus for hydrocracking a hydrocarbon stream strips a liquid hydrocracked stream in a reboiled stripping column to provide a stripping overhead stream and a stripped stream and a vaporized stripping overhead stream has LPG hydrocarbons absorbed from it with an absorbent stream comprising the stripped stream. No equipment is needed to remove water from the absorbent stream due to the lack of steam added during stripping with a reboil column.

Process and apparatus for hydrocracking with stripping gas sponge absorber

A process and apparatus for hydrocracking a hydrocarbon stream that feeds a cold stripped stream and a hot stripped stream to a product fractionation column which may be reboiled. The product fractionation bottoms stream is passed to a heavy fractionation column that may be steam stripped and may be under vacuum.

Process and apparatus for hydrocracking with heavy fractionation column

A process and apparatus for hydrocracking a hydrocarbon stream and with heat integration between two stripping columns. Both stripping columns use a reboiler for heat input to avoid steam recovery and dew point issues in the overhead. A hot stripped stream can provide heat to the cold stripping column by heat exchange. Additionally, as few as two heaters that rely on external utilities may be required for reboiling fractionator column bottoms.

Process and apparatus for hydrocracking with integrated dual stripping columns

Growing community of inventors

Elk Grove Village, IL, United States of America

Donald A Eizenga