AIChE Spring Meeting and Global Congress on Process Safety

Goal of the Project The primary goal of the project is the creation of composite fuels for combustion processes containing biomass, coal, coal residues, crude oil processing residues, and other combustible material for effective firing in power plants The principal technological approach is...

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...

Hydrogen management can have a significant effect on refinery utility supply through the integration with the rest of the systems. Optimization of hydrogen production in conjunction with steam, power, and fuels can yield significant savings opportunities for the refinery. Examples of actual...

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,...

AIChE 2012 Spring Conference Modeling Dynamic Heat Transfer in Piping Systems using an Enhanced ASTM C-680 Algorithm Debby Sielegar Process Engineering Specialist Bechtel Oil, Gas & Chemicals, Inc. David Messersmith (co-author) LNG Technology Manager Bechtel Oil, Gas & Chemicals, Inc. ASTM...

Natural gas has been a co-feedstock to the reformers in the Sasol CTL complex since 2004. A more beneficial way is to re-route natural gas to the cryogenic separation unit and thus only reform the separated methane in the natural gas feed. However, introducing NO x into the cryogenic separation...

The term “Appropriate Placement” was introduced in Pinch Analysis during the 1980s to indicate how special unit operations should be correctly integrated with the background process to ensure maximum energy savings. Pinch Analysis has provided guidelines for the design of heat exchanger networks as...

A new separation technology, called stripping crystallization (SC) or distillative freezing (DF), has been recently developed in our laboratory to separate the mixtures with close boiling temperatures, including the mixed xylenes [1-3] and the benzene/cyclohexane mixture [4]. In principle, SC is...

Practical Process Integration Retrofit Part 2. Remaining Problem Analysis & Driving Force Plot G.T.Polley The Cross-Pinch Method is not the only tool derived during the initial stages of the application of Pinch Technology to retrofit projects. Other significant developments were Remaining...

Advanced Process Control (APC) can take on many flavors and levels of sophistication. On the digital control systems (DCS), advanced regulatory controls can create value using property predictions cascaded to DCS controllers or feed forward or decoupling signals can be added to improve stability...