Search form

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

Possible Solutions for Reducing NOx and SOx Emissions from Large Cargo Ships

Mar 23, 2010
Reggie Zhan
In an attempt to curb air pollution from the shipping industry, the U.S. Environmental Protection Agency (EPA) proposed two new sets of standards in July 2009, which requires ships that have compression-ignition engines with a capacity of 30 liters or more per cylinder in U.S. waters to cut...

Vapor-Liquid Equilibrium (VLE) Study of CO2 with MEA and Ammonia Solvents

Mar 23, 2010
Donald Johnson
In the carbon capture and sequestration (CCS )scenario, vapor liquid equilibrium (VLE) curves represent the theoretical relationship between local gaseous CO2 vapor pressure and the respective carbon loading in solution for a given operating temperature. It determines the maximum carbon content in...

Cooldown of Large Pipes During the Commissioning Phase of Cryogenic Facilities

Mar 23, 2010
Harri Kytomaa
Cryogenic facilities such as LNG receiving terminals operate at temperatures as low as -260F. During day to day operations, the temperature in the pipes of the facility is relatively uniform, leading to low material stresses in the pipes. However, during exceptional operations, such as the initial...

Design Feature of Large Full Containment LNG Storage Tank

Mar 23, 2010
Se-Jin Jeon
A number of notable features are addressed that may be encountered in designing a large aboveground full containment LNG storage tank. The size and thickness of the inner tank, which is made of 9% Ni, is closely related to the specifications of design codes. The recent revisions of the relevant...

Theoretical Screening Good Sorbents for CO2 Separation

Mar 23, 2010
Yuhua Duan
Carbon dioxide is the major product from coal combustion and is released into the air and causes global climate warming which we are facing today. Current technologies for capturing CO2 including solvent-based (amines) and CaO-based materials are still too energy intensive. Hence, there is critical...

Revamp Your Furnace – Enhance Technical & Financial Performance

Mar 23, 2010
Yong Wang
Furnace revamps provide opportunities to enhance new technologies, add feedstock flexibility, increase production capacity, improve efficiency and meet more stringent environmental regulations. With the current economic situation and anticipated environmental requirements, construction of...

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...

Pages