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Conference Presentations - 2011 AIChE Spring Meeting and Global Congress on Process Safety

New Continuous Coking Process

Mar 14, 2011
Douglas W. Sullivan
NEW CONTINUOUS COKING PROCESS A new coking process can accept resid feed from the conventional resid heater in a coking plant and continuously discharge vapor and dry petroleum coke particles. The process promotes a rapid recovery of volatiles from the resid enabling recovery of more volatiles. It...

Multi-Model MPC for a Complex pH Neutralization Process

Mar 14, 2011
Weiting Tang
Control of feed pH control is an important task in chemical industries, wastewater treatment, polymerization reactions, fatty acid production and biochemical processes. However, this is a challenging problem due to (i) presence of large and varying time delays and (ii) complex time varying...

Prevention of CUI: “ Roadmap to Managing CUI ”

Mar 14, 2011
Klaus Bormuth
This paper details CUI cases as well as the means for preventing, finding and repairing them. Approaches and procedures for managing CUI are described leading to a document “Roadmap to Managing CUI” which can be modified to company specific requirements. In recent years more problems with CUI in...

Handling LPG Components In LNG Plants

Mar 14, 2011
Stanley Huang
Natural Gas Liquid (NGL) recovery is an inherent part of most Liquefied Natural Gas (LNG) production trains. The requirement serves many purposes, such as adjusting the heating value of the product LNG, mitigating the freezing risks caused by specific intermediate and heavy components, and...

Thermal Plasma Gasification of Different Coals with Carbon Dioxide

Mar 14, 2011
Maoqi Feng
Carbon dioxide emissions from conventional coal-fired power plants constitute the majority CO 2 emissions in the U.S. Mitigation of CO 2 by chemical conversion provides an alternative method to reduce the CO 2 emissions from coal gasification process with the benefit of eliminating energy-intensive...

Scale-up of Advanced Methanol to Olefins (MTO) and Olefins Cracking Process (OCP)

Mar 14, 2011
Eric Romers, John Senetar
Abstract: The conversion of methanol to olefins (MTO) is a means to produce ethylene and propylene from feedstock derived from sources other than crude oil or condensates. Methanol is widely produced from natural gas or coal at locations with abundant reserves. By utilizing methanol derived from...

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...

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...

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