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Chem Economics: ACC Releases Portfolio of Specialty Chemicals Indexes

September
2012
Chem Economics
T. Kevin Swift
The American Chemistry Council (ACC) has launched a new set of indexes covering nearly 30 segments of the U.S. specialty chemicals market. (The first, which dealt with plastic additives, was discussed in the July issue, p. 13.) This is the first set...

Flare Minimization Via Dynamic Simulation

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Flaring in chemical process industry (CPI) is an important method to protect equipment and personnel safety during the process upset and the chemical...

Improving Ethylene Charge Gas Compressor Performance

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
The changing landscape of the ethylene industry requiring more feedstock flexibility and upstream and downstream integration increases the complexity...

Trip & Throttle Valve Reliability

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Trip & Throttle Valve Reliability Trip & Throttle (or Stop) valves are used in ethylene plants to isolate the energy to steam turbines when...

Mitigation of Preheat Fouling by Eliminating the Cause

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Today, there is no excuse for not getting five years or more on the run length of refinery preheat exchangers without the need for cleaning. Among...

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...

Industry Standards for Composite Repair Systems

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
ABSTRACT A significant amount of work has transpired over the past several years in generating consensus-based standards that include ASME PCC-2 and...

C5 Metathesis for Increased Propylene Production

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
The production of on-purpose propylene via the metathesis of ethylene and butenes now exceed 6% of the total propylene. The supply of butenes is...

Life Cycle of Aluminum Plate Fin Exchangers

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
Abstract: Corrosion, blockage, fouling, and mechanical/thermal overload are the key degradation mechanisms that operators need to control to avoid...

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...

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...

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...

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...

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-...

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,...

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...

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...
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