AIChE

Capital Cost Targeting of Total Site Heat Recovery

Apr 4, 2012
Petar Sabev Varbanov
Heat recovery on Total Site level can provide a considerably high potential for energy saving. It offers additional degrees of freedom for heat recovery and cogeneration. A key issue in Total Site heat recovery is to select the minimum allowed temperature difference (ΔT min ) specifications on a...

Acetylene Converter Safety Systems

Apr 4, 2012
Nelson Shen
Acetylene is produced as a by-product during the pyrolysis cracking of hydrocarbons in ethylene plant furnaces. Typically the acceptable acetylene contaminant level in the polymer grade ethylene product is in the range of 1 ppmv or lower. Since acetylene will fractionate with ethylene, it needs to...

Tutorial on Hydroprocessing: ìHydroprocessing Catalysts and Processesî

Apr 4, 2012
Paul Robinson
The products of petroleum refining must meet tight specifications, including limits on sulfur, nitrogen, olefins, aromatics, and other contaminants. Hydrotreating removes these contaminants from distilled crude oil fractions and intermediate process streams. Hydrocracking converts heavy oil...

Synthesis and Optimisation of Demethaniser Flowsheets for NGL Recovery

Apr 4, 2012
Muneeb Nawaz
Synthesis and Optimisation of Demethaniser Flowsheets for NGL Recovery Muneeb Nawaz 1 , Megan Jobson 2 , Adrian Finn 1 1. Costain - Energy & Process, Costain House, Styal Road, Manchester, M22 5WN 2. Centre for Process Integration, School of Chemical Engineering and Analytical Science,...

Hydrocarbons Turnarounds EHS Readiness

Apr 4, 2012
Jon Pucheu
The Dow Hydrocarbons Business has a thorough process for managing excellent EHS performance during Turnarounds. We name an EHS Focal Point for each Turnaround 2 years in advance. A Turnaround EHS Preparation and Execution plan is developed and followed. An EHS Readiness Assessment is conducted with...

Modeling of Ground Flare Pits

Apr 4, 2012
Nicolas F. Ponchaut
New LNG liquefaction facilities have been configured to include large ground flares to allow for the safe combustion of large volumes of combustible gasses in the event of facility upset conditions. A recent example is a planned LNG development nearby Darwin, Australia. These ground flares can...

Anti-Surge Methods for the Base Load LNG Plant Propane Compressor

Apr 4, 2012
J. C. Kuo
The propane compressor represents a significant capital investment and operating expense of a LNG plant, and is an essential component in providing revenue streams of the plant. Therefore, operation and protection of the propane compressor are critical issues in the plant design and operation. The...

Evaluation of Reverse Osmosis - Electrode-ionization Pilot Project in PT Badak NGL

Apr 4, 2012
Fany Arfianto
PT Badak NGL utilizes groundwater for Plants and Community water consumption. Demineralization water production in PT Badak NGL uses ion exchange process which has high safety risk since it utilizes sulfuric acid and caustic for ion exchanger regeneration. The sulfuric acid sometimes leaks out from...

Hydroprocessing Design - Tutorial

Apr 4, 2012
Stuart Shih
Hydroprocessing or hydrotreating is the key technology to clean, to refine, and to convert crude oils into valuable products, such as gasoline and diesel. It covers a wide range of feed stocks and numerous configurations. The tutorial will discuss process configuration, material selection, and heat...

Turnaround Excellence - Key Success Factors

Apr 4, 2012
Bobby Vichich
Turnaround Excellence is more than a state of being… it is a journey. Achieving and sustaining excellence is wholly dependent on a site approach of shared accountability towards Turnaround Excellence and must be a continually improving process. Starting well in advance of “feed out”, a long range...

Hydrocracking - An Overview

Apr 4, 2012
The paper will present an overview of the Hydrocracking process as applied in the refineries today. It will cover Mild Hydrocracking, Partial Conversion Hydrocracking, Full Conversion Hydrocracking, Hydrocracker/FCC integration, Hydrocracker/Ethylene Steam Cracker integration and Production of Lube...

Dynamic Simulation: Value During LNG Process Design and Beyond

Apr 4, 2012
Kenneth V. Allsford
A contributor to complex/large project management difficulty is uncertainty gaps – gaps between the information required and that readily available within the project organization. Moreover, for large projects, information is generally spread among many professional personnel across multiple...

Innovative Hydrocavitation Technology Process to Create Composite Fuels

Apr 4, 2012
Harold N. Knickle
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...

Analysis of Turnarounds in Olefin Plants: A 16-Year View

Apr 4, 2012
Claire Cagnolatti
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...

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