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Fossil Fuels

Efficient Power Recovery In LNG Regasification Plants

Mar 14, 2011
Hans E. Kimmel
Regasification plants vaporize liquefied natural gas using mainly high-pressure LNG pumps and heat exchangers. The vaporization pressure corresponds to the natural gas pipe line pressure. Due to the large temperature difference between the LNG feed and the pipe line gas, a substantial power...

Predicting Operating Regimes In Heavy Gas Oil Hydrotreating Reactors

Mar 14, 2011
Jinwen Chen
Predicting Operating Regimes in Heavy Gas Oil Hydrotreating Reactors Jinwen Chen and Mugurel Munteanu CanmetENERGY, Natural Resources Canada One Oil Patch Drive, Devon, AB, T9G 1A8, Canada Hydrotreating (HDT) or mild hydrocracking (HDC) of heavy gas oil or vacuum gas oil is an important step in...

Plasma Assisted De-NOx In Diesel Engine

Mar 14, 2011
Dae Hoon Lee
Plasma assisted De-NOx systems in mobile application are introduced. In general, de-NOx process requires reductant for reducing catalyst. NH3(Urea) fueling, post injection of diesel fuel are representative of method for supplying reductant. Here, using synthesis gas by on board reforming as...

Helium Extraction From Nitrogen Rejection Unit Stream of LNG Plants

Mar 14, 2011
Chen-Hwa Chiu
Helium is a major rare gas that has a lot industrial and research application. Potential production has traditionally come from natural gas and the helium market is becoming tighter as the production is not being kept up with the demand. Helium extraction and refining from the NRU (nitrogen...

Exploitation of Low-Grade Heat In Site Utility Systems

Mar 14, 2011
Ankur Kapil
The site utility system provides the heating, cooling load along with power production for the processes on the total site. Low-grade heat is available in large amount across the process industry from temperatures of 30 o C to 250 o C as gases (e.g. flue gas) and/or liquids (e.g. cooling water)...

Synthesis Gas Cleanup with Nonthermal Plasma

Mar 14, 2011
Maoqi Feng
Plasma processes are very useful in industry because plasma has the unique characteristic of producing active species in large numbers of energetic species than conventional chemical processes. Nonthermal plasma (NTP), such as corona or glow discharge plasmas, is widely used for generating such...

Novel Additives to Improve Resid Quality

Mar 14, 2011
Parag Shah
With an increasing focus on resid upgrade and bottom of the barrel conversion over the years due to economic advantages, refiners are increasingly processing heavy crudes that yield higher residue content. These crudes are also higher in salt, metal and sulfur content. Often in these cases, there...

Petroleum Resid Conversion: Opportunities and Limitations

Mar 14, 2011
Irv Wiehe
In the conversion of vacuum resids one has the option to form coke as a byproduct or to devise conversion processes that prevent coke formation while forming a heavy liquid byproduct. The theme of this presentation is that both options can be greatly improved over current commercial practice but...

The Role of Heat Exchangers In Post-Combustion CO2 Capture

Mar 14, 2011
Warren H. Ziegler
The role of heat exchangers in post-combustion CO2 capture Warren Ziegler Motivation: The overall energy penalty for post-combustion carbon capture by aqueous amines as well as solid sorbent systems can be reduced significantly by recovering heat from the lean/hot solvents coming out of the...

Resin Wafer Electrodeionization for Flue Gas Carbon Dioxide Capture

Mar 14, 2011
Rebecca L. Stiles
Energy efficient capture of CO 2 from coal-fired power plants is one of the grand challenges for the U.S. both to end dependence on imported energy and to reduce greenhouse gas emissions. Nalco Company and Argonne National Laboratory received a Department of Energy ARPA-E award to develop Resin...

Reducing the Load on Cooling Towers through Revamping of Individual Coolers

Mar 14, 2011
Graham T. Polley
The engineering of cooling water systems involves a consideration of both hydraulic and thermal behaviour. Unfortunately this is often ignored. For instance when engineers seek to reduce the thermal load on cooling towers they will often opt for increased heat recovery (via improved heat...

Improved LNG Plant Performance Through Higher Thermodynamic Efficiency

Mar 14, 2011
Christopher M. Ott
For many years, the LNG industry has focused on large baseload plants. Recently, more attention is being given to smaller LNG facility sizes and alternative liquefaction strategies. This presentation will examine the impact that the thermodynamic efficiency of a particular cycle can have on the...

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