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AIChE Spring Meeting and Global Congress on Process Safety

Mitigation of Preheat Fouling by Eliminating the Cause

Mar 15, 2011
Irv Wiehe
Today, there is no excuse for not getting five years or more on the run length of refinery preheat exchangers without the need for cleaning. Among the many tools available for fouling mitigation of preheat exchangers, the most overlooked ones involve determining and eliminating the cause. Almost...

Scoping Study of Methanol Production From CO2 with Nuclear Electrolysis H2

Mar 15, 2011
Richard D. Doctor
A scoping study of system costs for producing methanol from CO 2 and H 2 using low-carbon electricity to supply the hydrogen from commercial electrolysis produced methanol via: CO 2 + 3H 2 ➝ CH 3 OH + H 2 O Assuming low-carbon electricity at $75/MW, electrolysis delivers hydrogen at $5/kg and the...

Ethylene Boil-off Compressor Process Safety Incident

Mar 15, 2011
Niara Eckhard Uhlein
Braskem, a Brazilian player among petrochemical manufacturers, produces monomers, resins and chemicals specialties. The overall Ethylene capacity is 3,600 KTA, distributed in six Olefins plants. Naphtha is the main raw material of the petrochemical and plastic productive chain in Brazil, followed...

Effect of the Characteristic Dimension of Catalytic Wall Microchannels and Microslits on the Performance of Microreactors Coupling the Methane Steam Reforming and Combustion Reactions: A CFD Simulation Study

Mar 15, 2011
Luis M. Gandia
Effect of the Characteristic Dimension of Catalytic Wall Microchannels and Microslits on the Performance of Microreactors Coupling the Methane Steam Reforming and Combustion Reactions: A CFD Simulation Study G. Arzamendi 1 , I. Uriz 1 , P.M. Diéguez 1 , M. Montes 2 , M.A. Centeno 2 , J.A. Odriozola...

Synthesis of Novel Catalyst for the Trireforming of CO2-Rich Flue Gases

Mar 15, 2011
Tracy J. Benson
Today’s chemical industry is very complex with most commodity chemicals being produced from some variation of petroleum feedstocks. From transportation fuels to polymers, petroleum is truly the largest source of basic hydrocarbons for which many of the common household products consumers use. Along...

LNG Tank Top Fires

Mar 15, 2011
James Venart
The regulatory requirements of 49 CFR 193, Liquefied Natural Gas Facilities: Federal Safety Standards, require thorough engineering reviews before approval of any proposed LNG facility. Such a process must consider potential and credible hazardous events. The proposed paper will specifically note,...

Operational Inputs Into the Mechanical Integrity Program

Mar 15, 2011
F. Russ Davis
A predictive mechanical integrity (MI) program is based on the following: * Damage mechanisms that affect process equipment. * Rate at which degradation progresses. * Ability of the inspection group to identify and correct equipment damage before equipment failure. Operational temperature, pressure...

Practices to Mitigate NOx Risk In Cryogenic Section of Ethylene Plants

Mar 15, 2011
Jennifer L. Bancroft
In May 2010 the Ethylene Producers Committee NOx Safety Sub-Committee sponsored a discussion on practices to mitigate NOx risk in the cryogenic section of ethylene plants. The meeting was attended by representatives of 10 ethylene producers, 4 ethylene contractors and other contractors, 2 additive...

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