Conference Presentations - 2010 AIChE Spring Meeting and Global Congress on Process Safety

Flare Minimization at LNG Receiving Terminal

Mar 22, 2010
Qiang Xu
The LNG (liquefied natural gas) receiving terminal is an important sector of the entire LNG value chain. The handling of boil-off gas (BOG) during LNG re-gasification at LNG-receiving terminals significantly influences the BOG flare emission and the energy consumption. In this paper, thermodynamic...

Loop Tuning Basics

Mar 22, 2010
James Beall
There are many methods to tune PID controllers. This presentation provides a tutorial on tuning PID process controllers using Internal Model Control (IMC) concepts. This tuning methodology allows the user to “coordinate” the response of related controllers to optimize the process performance rather...

Holistic Approach to the Revamping and De-Bottlenecking of Pre-Heat Trains

Mar 22, 2010
Graham T. Polley
The energy efficiency and throughput of pre-heat trains can be improved by using process integration and through fouling mitigation. In this paper we show how the approaches can be combined in a systematic way. If fouling behaviour is ignored the use of process integration can lead to revamps in...

Plasma Reforming of E85 for Hydrogen Rich Gases Production

Mar 22, 2010
Xinli Zhu
E85 (85 vol.% ethanol and 15 vol.% gasoline) is a partly renewable fuel, which is commercially available in gas stations. Hydrogen rich gas production from E85 for fuel cell or internal combustion engine applications is being considered as a potential way to reduce CO2 emissions with increasing...

Ship-Shore Interaction and LNG Tank Piping Design Considerations

Mar 22, 2010
Chen-Hwa Chiu
This paper intends to discuss one of the most neglected areas in the LNG plants. This area involves the ship-and-shore operating philosophy and interaction and BOG (boil-off gas) management. It involves the design considerations, operating philosophy and safety aspects of the LNG plants. It also...

Cracked Gas Dryer Tutorial (Part 1)

Mar 22, 2010
Bruno De Jonckheere
This tutorial will begin with a brief introduction to molecular sieves followed by a description of the process, covering overall operation of the charge gas dryer including adsorption and regeneration steps. Key design considerations will be discussed along with optimization and troubleshooting...

Overcoming Logistical Challenges with Collaborative Technologies

Mar 22, 2010
Curt Hertler
All refiners—and manufacturers in general—face daunting logistical challenges including supply chain, changing product specifications, carbon legislation, and regulatory compliance. In addition, the industry faces knowledge management issues due to the reality of an aging work force. Information...

Advanced Materials for Radiant Coils

Mar 22, 2010
Dr. Deitlinde Jakobi
Since radiant coils operate under severe conditions of carburization, oxidation and erosion tube material selection plays an important role. Schmidt + Clemens and the R&D-institute HDZ have developed a new bench-scale unit to simulate high temperature corrosion of alloys in petrochemical plants...

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