Petrochemicals

Prevention of CUI: “ Roadmap to Managing CUI ”

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
This paper details CUI cases as well as the means for preventing, finding and repairing them. Approaches and procedures for managing CUI are...

Multi-Model MPC for a Complex pH Neutralization Process

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
Control of feed pH control is an important task in chemical industries, wastewater treatment, polymerization reactions, fatty acid production and...

Exploitation of Low-Grade Heat In Site Utility Systems

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
The site utility system provides the heating, cooling load along with power production for the processes on the total site. Low-grade heat is...

Novel Additives to Improve Resid Quality

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
With an increasing focus on resid upgrade and bottom of the barrel conversion over the years due to economic advantages, refiners are increasingly...

New Continuous Coking Process

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
NEW CONTINUOUS COKING PROCESS A new coking process can accept resid feed from the conventional resid heater in a coking plant and continuously...

Fundamentals of Alarm Management

AIChE Spring Meeting and Global Congress on Process Safety
Mar 13, 2011
When the information era began thirty years ago, the focus for the refinery control specialist was placing as much data as possible into the hands of...

Processing Heavy Crudes In Existing Refineries

AIChE Spring Meeting and Global Congress on Process Safety
Mar 13, 2011
Increasing amounts of heavy crudes are being produced, particularly in Canada and South America. The discount prices for these crudes, relative to...

Sulfur Myths - What We Know and What We Do Not Know

AIChE Spring Meeting and Global Congress on Process Safety
Mar 13, 2011
The use of organosulfur compounds in steam cracking furnaces to produce ethylene and propylene is a universal practice to essentially prevent carbon...

Fouling Mitigation of Quench Tower System

AIChE Spring Meeting and Global Congress on Process Safety
Mar 24, 2010
Gas cracking plants are especially sensitive to fouling in the quench water section. One main fouling mechanism in the quench tower and in the...

“Compression System Check Valve Failure Hazards”

AIChE Spring Meeting and Global Congress on Process Safety
Mar 24, 2010
Catastrophic equipment failure due to overpressure can potentially occur in the event of compression system discharge, interstage, and/or suction...

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,...

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,...
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