Chemicals & Materials

Thoughts about Safety, Staying at Zero

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
Perfect safety records and perfect environmental records are an “inalienable right”, given to us not by governments, companies, or others. It is a...

Operational Inputs Into the Mechanical Integrity Program

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
A predictive mechanical integrity (MI) program is based on the following: * Damage mechanisms that affect process equipment. * Rate at which...

Process Automation During Refinery Unit Transitions

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
Process Automation ideas and technologies have been used sporadically for decades. However, in US refineries, automation technologies are still...

Introductory Remarks

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm

Flare Minimization Via Dynamic Simulation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
Flaring in chemical process industry (CPI) is an important method to protect equipment and personnel safety during the process upset and the chemical...

Mitigation of Preheat Fouling by Eliminating the Cause

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
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...

Improving Ethylene Charge Gas Compressor Performance

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
The changing landscape of the ethylene industry requiring more feedstock flexibility and upstream and downstream integration increases the complexity...

Trip & Throttle Valve Reliability

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
Trip & Throttle Valve Reliability Trip & Throttle (or Stop) valves are used in ethylene plants to isolate the energy to steam turbines when...

New Continuous Coking Process

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
NEW CONTINUOUS COKING PROCESS A new coking process can accept resid feed from the conventional resid heater in a coking plant and continuously...

Prevention of CUI: “ Roadmap to Managing CUI ”

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
This paper details CUI cases as well as the means for preventing, finding and repairing them. Approaches and procedures for managing CUI are...

Bahx Repair

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
Abstract: Repair of brazed aluminum heat exchangers requires specialized knowledge. While repairs can be done successfully, improper procedures can...

Catalytic Cracking of FT Products for Light Olefins Production

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
The demand for light olefins is continuing to rise at over 3% per annum. While ethylene production is expected to be addressed by the construction of...

Industry Standards for Composite Repair Systems

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
ABSTRACT A significant amount of work has transpired over the past several years in generating consensus-based standards that include ASME PCC-2 and...

Petroleum Resid Conversion: Opportunities and Limitations

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
In the conversion of vacuum resids one has the option to form coke as a byproduct or to devise conversion processes that prevent coke formation while...

C5 Metathesis for Increased Propylene Production

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
Abstract: Corrosion, blockage, fouling, and mechanical/thermal overload are the key degradation mechanisms that operators need to control to avoid...

Multi-Model MPC for a Complex pH Neutralization Process

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 14, 2011 - 8:00pm
With an increasing focus on resid upgrade and bottom of the barrel conversion over the years due to economic advantages, refiners are increasingly...

What Are We Going to Do with All This Natural Gas?” –

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Sunday, March 13, 2011 - 8:00pm
The success in Shale and other unconventional formations has dramatically expanded the N. American Natural Gas reserves and promises to also do so in...

Green House Gas Reporting In the Ethylene Manufacturing Sector

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Sunday, March 13, 2011 - 8:00pm
The Greenhouse Gas (GHG) Mandatory Reporting rule (MRR), codified in Part 98 of Title 40 of the Code of Federal Regulations, requires numerous...

Compressor Train Performance - Evaluation and Monitoring (Part 2)

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Sunday, March 13, 2011 - 8:00pm
Utilization of Equipment Health Management system tools has allowed end users to monitor, protect and manage the critical rotating machinery in an...

Processing Heavy Crudes In Existing Refineries

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Sunday, March 13, 2011 - 8:00pm
Increasing amounts of heavy crudes are being produced, particularly in Canada and South America. The discount prices for these crudes, relative to...

Compressor Train Performance - Evaluation and Monitoring (Part 1)

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Sunday, March 13, 2011 - 8:00pm
Utilization of Equipment Health Management system tools has allowed end users to monitor, protect and manage the critical rotating machinery in an...

Impacts to the Ethylene Supply Chain from a Hurricane Disruption

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, March 24, 2010 - 8:00pm
Analysis of chemical supply chains is an inherently complex task, given the dependence of these supply chains on multiple infrastructure systems (e.g...

Fouling Mitigation of Quench Tower System

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, March 24, 2010 - 8:00pm
Gas cracking plants are especially sensitive to fouling in the quench water section. One main fouling mechanism in the quench tower and in the...

Silencing Deethanizer Reboiler Condensate Drum Hydraulic Hammer

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, March 24, 2010 - 8:00pm
A deethanizer reboiler condensate drum experienced hydraulic hammering when the reboiler operated at lower steam loads and when the column loads were...

War Strategies to Guarantee Peace Time in a Primary Fractionator

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, March 24, 2010 - 8:00pm
Braskem is a Brazilian petrochemicals manufacturer, producing monomers, resins and chemicals specialties. Its ethylene capacity is 2,500 Kty,...

“Compression System Check Valve Failure Hazards”

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, March 24, 2010 - 8:00pm
Catastrophic equipment failure due to overpressure can potentially occur in the event of compression system discharge, interstage, and/or suction...

Options for Mercury Removal in Ethylene Plants

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
Many similar safety incidents occur in ethylene plants throughout the world. While these should be well known to plant operators, our paper lists...

Current Methods of Measurement of NO, NO2 and NH3

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
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...

Full Potential Conversion of Vacuum Resids

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
Present vacuum resid conversion processes, either coking or hydroconversion, are far from achieving their maximum conversion. With the remaining...

Furnace Safe Park DCS Tool

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
Properly managing the shutdown or “safe parking” of multiple steam-cracking furnaces during a plant-wide upset can be challenging. Alarm flood and...

Revamp Your Furnace – Enhance Technical & Financial Performance

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
Furnace revamps provide opportunities to enhance new technologies, add feedstock flexibility, increase production capacity, improve efficiency and...

Integrated Refinery Cracker, the New Paradigm

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
An advanced characterization program was designed and implemented to identify the chemical nature of contaminants present in the feed to a flexi-...

New Type of Cracking Furnace Radiant Coil Design

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 22, 2010 - 8:00pm
This paper presents the economical benefits for a new radiant coil design which improves the performance of the thermal cracking furnace. The main...
Subscribe to Chemicals & Materials