Uop Lcc

James T Wexler

Donald A Eizenga

Xin X Zhu

Kyle T Cuellar

Bradley P Russell

Kurt Kraus

Elizabeth Carter

William Macallan Cady

Erick J Bennett, Iii

Oluwaseyi Kayode

Addison Cruz

Suryanarayana Murthy Konda Naga Venkata

Richard K Hoehn

David A Wegerer

Patrick C Whitchurch

Jan De Ren

Geoffrey William Fichtl

Stefano Bietto

Gautam Pandey

Hari S Bajpai

Ashish Mathur

Eseoghene Jeroro

Joe Quock

Nickolas D Kapaun

Ralph P Davis

Jose R Rojas

Saravanaperumal Sivaprakasam

Rafael Alcala

Nickolas Kapaun

Hai Du

Phuong TM Do

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 bio-renewable conversion process for making fuel from bio-renewable feedstocks is combined with a hydrogen production process that includes recovery of CO. The integrated process uses a purge gas stream comprising hydrogen from the bio-renewable hydrocarbon production process in the hydrogen production process.

Integrated hydrogen production and bio-renewable conversion process

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

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

The process produces a diesel from a biorenewable feedstock by hydrotreating to remove heteroatoms and saturate olefins. The biorenewable feedstock is contacted in a guard bed reactor in the presence of hydrogen to saturate olefins and remove metals to produce a contacted feed stream. The contacted feed stream is then heated in a charge heater to a higher temperature than in the guard bed reactor and hydrotreated in the presence of a hydrotreating hydrogen stream and a hydrotreating catalyst to deoxygenate the contacted feed stream to provide a hydrotreated stream.

Process for producing diesel fuel from a biorenewable feed

The invention provides processes for the production of hydrocarbons from a biorenewable feedstock blended with a mineral feedstock comprises hydrotreating to remove heteroatoms and saturate olefins. The carbon monoxide is not fed to the downstream hydroisomerization reactor but supplanted with a hydrogen gas with a low concentration of carbon monoxide so as not to poison the hydroisomerization catalyst to improve the cold flow properties for a diesel fuel.

Process for producing fuels from a blended biorenewable feed

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Wheaton, IL, United States of America

James T Wexler