Petrochemicals

Safety Incidents in Ethylene Plants

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
Many similar safety incidents occur in ethylene plants throughout the world. While these should be well known to plant operators, our paper lists...

Technologies for Enhancing Refinery Gas Value

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
The trend of processing heavy and sour crude is resulting in 'fuel long' refineries which seek to export energy in the form of refinery fuel gas or...

Current Methods of Measurement of NO, NO2 and NH3

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
The measurements of NO, NO2 and NH3 have been a challenge for analytical chemists for many years. This paper will deal primarily with new advances in...

Furnace Safe Park DCS Tool

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
Properly managing the shutdown or “safe parking” of multiple steam-cracking furnaces during a plant-wide upset can be challenging. Alarm flood and...

Fouling by Asphaltenes After and During Conversion

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
During resid conversion processes, such as visbreaking or hydroconversion, more saturated pendant groups are cracked off asphaltenes, making them...

Full Potential Conversion of Vacuum Resids

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
Present vacuum resid conversion processes, either coking or hydroconversion, are far from achieving their maximum conversion. With the remaining...

Feedstock Contaminants: A Case Study

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
An advanced characterization program was designed and implemented to identify the chemical nature of contaminants present in the feed to a flexi-...

Fuel Performance Parameters for Marine Engines

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
The regulations for sulfur reduction in marine fuels are impacting the whole spectrum beginning from the production of the fuel in the refineries to...

Integrated Refinery Cracker, the New Paradigm

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
The new trends in crackers are higher capacity and heavier feedstock. This makes the integration between refineries and crackers significantly more...

Options for Mercury Removal in Ethylene Plants

AIChE Spring Meeting and Global Congress on Process Safety
Mar 23, 2010
Ethylene producers have faced the challenge of feedstock contaminants for decades. However, with current industry transitions and surplus capacity,...

Enterprise Inventory Management in Volatile Markets

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Hydrocarbon and other commodity prices are increasingly volatile due to factors which include speculation, reduced inventory and a lack of spare...

Loop Tuning Basics

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
There are many methods to tune PID controllers. This presentation provides a tutorial on tuning PID process controllers using Internal Model Control...

Cracked Gas Dryer Tutorial (Part 2)

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
This tutorial will begin with a brief introduction to molecular sieves followed by a description of the process, covering overall operation of the...

Variability, Inventory Uncertainty and Supply Chains

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
This session will develop a fundamental understanding of how cycle time variation in stages of a supply chain propagates into measures of overall...

Advanced Materials for Radiant Coils

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Since radiant coils operate under severe conditions of carburization, oxidation and erosion tube material selection plays an important role. Schmidt...

Cracked Gas Dryer System Debottlenecking Concepts

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Of prime importance in the ethylene plant process is the Cracked Gas (CG) Dehydration System. CG Dryer operation is a key factor to the achievement...

Advanced Catalysts for C2-C4 Selective Hydrogenation

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Availability of pure olefin monomers is a key step in the production of polymers. These olefins are mainly produced by steam crackers. KataLeuna...

Oxygen/Combustible Safeguards in Low Nox Fired Heaters

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Refineries have been installing low NOx equipment on their fired heaters in response to tighter environmental regulation. Low NOx burners minimize...

Deployment of ZeaChem's Sustainable Biorefinery

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Increased emphasis is being placed on renewable, sustainable, domestic forms of energy, including transportation fuels, at national, state and local...

Reliable Retention of Molecular Sieve Beds

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Reliable operation of an Olefin gas/liquid dehydrator requires careful attention to the integrity of the grid supporting the molecular sieve...

Successful Energy Stewardship

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
An energy stewardship program, aimed at driving energy efficiencies from no-cost operational improvements has been implemented with considerable...

Unusual Corrosion Failures of Transfer Line Exchangers

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
This paper describes two case histories of corrosion failures. The first case history describes metal dusting of the tubes and tubesheet from the...

Bio-Refinery for the Production of Ethylene Derivatives

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Downstream products of petroleum have been the main source for feedstocks for most of the petrochemicals produced over the last 90 years. However,...

Advances in Renewable Jet Technology

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Use of aviation fuel currently corresponds to 2-3% of the total fossil fuels used worldwide, or 13% of fossil fuel used in transportation fuel...

Revamp Fired Heater to Maximize Thermal Efficiency

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
Fired heaters are in the refining and petroleum industry. In the current scenario, it is important to maximize fired heater efficiency to the maximum...

Cracked Gas Dryer Tutorial (Part 1)

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
This tutorial will begin with a brief introduction to molecular sieves followed by a description of the process, covering overall operation of the...

New Type of Cracking Furnace Radiant Coil Design

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
This paper presents the economical benefits for a new radiant coil design which improves the performance of the thermal cracking furnace. The main...

Cracked Gas Dryer Survey

AIChE Spring Meeting and Global Congress on Process Safety
Mar 22, 2010
An electronic internet survey was distributed to United States and European ethylene producers. The goal of the survey was to document vessel design...

Progression of GHG Emissions Benchmarking

AIChE Spring Meeting and Global Congress on Process Safety
Mar 21, 2010
The efforts to measure, regulate, and control the emissions of greenhouse gases (GHG) by the refining and petrochemicals industries have been in...

KPI Controls for Major Refinery Units

AIChE Spring Meeting and Global Congress on Process Safety
Mar 21, 2010
Advanced Process Control (APC) solutions are recognized as a process industry best practice and proven investment opportunity in many industries,...

New Technology Enhances Model Predictive Control

AIChE Spring Meeting and Global Congress on Process Safety
Mar 21, 2010
The standard way of testing a process causes the configuration and tuning of the PID control system for the process to be embedded in the model...

Cracked Gas Compressor / Turbine

AIChE Spring Meeting and Global Congress on Process Safety
Mar 21, 2010
The cracked gas compressor (CGC) is still the most critical unit in the entire ethylene production facility. Its energy demand and potential plant...

Magnetic Bearings in Turboexpander Applications

AIChE Spring Meeting and Global Congress on Process Safety
Mar 21, 2010
Magnetic bearings in turboexpander have become the standard for the installation in gas processing and ethylene plants; there are areas of the design...
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