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Chemical Engineering Practice

Evaluation of Dispersion Models for LNG Siting Applications

Apr 4, 2012
Andrew Kohout
The federal safety standards for LNG facilities under 49 CFR Part 193 approves the use of specific dispersion models for performing vapor-gas dispersion exclusion zones. In addition, provisions allow for the use of alternative models if approved by PHMSA. In 2010, PHMSA, in consultation with FERC,...

The Rayleigh Equation Revisited What to Do When Alpha Isn't Constant

Apr 4, 2012
Robert G. Kunz
Abstract Integration of the Rayleigh Equation for batch distillation in closed analytical form has heretofore required that relative volatility (α) be assumed constant. A new technique presented in this paper produces a continuous analytical function for the Rayleigh Equation integral whether α is...

Strategic Chemistry

Apr 4, 2012
Troy Schuenemann
Optimizing the clearing and cleaning of process units during turnarounds. Primary discussion involves the three key areas related to an effective, timely cleaning plan. Chemistry, planning and execution. Minimization of effluent is also addressed. Overall timeliness, from oil out to vessel entry,...

Analysis of Turnarounds in Olefin Plants: A 16-Year View

Apr 4, 2012
Claire Cagnolatti
Comparative Performance Analysis™ (CPA™) benchmarking studies of the olefin industry have been conducted by HSB Solomon Associates LLC (Solomon) since 1987. This paper will highlight the results of a 16-year analysis of trends in turnaround performance by the industry. Data will be analyzed and...

Turnaround Excellence - Key Success Factors

Apr 4, 2012
Bobby Vichich
Turnaround Excellence is more than a state of being… it is a journey. Achieving and sustaining excellence is wholly dependent on a site approach of shared accountability towards Turnaround Excellence and must be a continually improving process. Starting well in advance of “feed out”, a long range...

Increasing CO2 Slip Though An Amine Based Tail Gas Treating Unit

Apr 2, 2012
Ben Spooner
Paper title: Reducing CO2 in the recycle gas from MDEA based tail gas treating units Abstract: CO2 is an undesirable compound in a sulphur recovery unit. MDEA based tail gas treating units are designed to remove remaining H2S out of the tail gas and recycle it back to the front of the SRU. MDEA...

Reshaping Process Safety Regulations

March
2002
Safety
Walter L. Frank
Changes to OSHA's PSM rule and EPA's RMP programs are underway, due to pressures from various groups and the need for greater security.

Use Guided-Wave Radar to Measure Water Level in Steam Loops

December
2012
Back To Basics
Keith Riley , Ravi Jethra
Guided-wave radar (GWR) is a useful tool for measuring water level in steam loops. This article describes GWR design and operation, and how this technology differs from more traditional forms of level indication.

Engineering Complex Phenotypes in Industrial Strains

November, 2012
This book explains current trends and developments in engineering biocatalysts for the production of bulk chemical and biofuels from renewable biomass. The authors guide readers through the engineering of the complex traits and phenotypes needed for particular biocatalysts and bioprocesses.

Mechanical Reliability

Virtual Local Section Webinar
Oct 27, 2011
David Rosenthal

Dave is a reliability and maintenance leader with over 30 years of chemical and process industry experience. His keynote address is on Mechanical Reliability.

Wireless Measurement & Control

Virtual Local Section Webinar
Aug 25, 2011
Greg McMillan

Wireless measurements reduce wiring installation and maintenance costs and eliminate electrical noise and ground loops.

The Extended History of PRICAT(TM) 468 for C4 Acetylene Hydrogenation

South Texas Section Webinar
May 5, 2011
Gary Gildert

Step three of the 'Eight Steps to Specify a Catalyst Bed' is selecting the catalyst. The process of developing and selecting catalysts is often shrouded in mystery. Examining the history of a product development can demystify the process.

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