Petrochemicals

Ethylene Boil-off Compressor Process Safety Incident

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 15, 2011
Braskem, a Brazilian player among petrochemical manufacturers, produces monomers, resins and chemicals specialties. The overall Ethylene capacity is...

Cracked Gas Compressor Control Tutorial

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 15, 2011
The market conditions over the couple of years has prompted many end-users to review antisurge control design to help lower their energy index. A...

Advanced Hydrogen Management : More Than a Balancing Act

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 15, 2011
Modern high complexity refining landscape involves increasing proportion of “opportunity crude” processing and widened bottom-of-the-barrel...

Objectives of Anti-Surge Control

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 15, 2011
Objectives of Anti-Surge Control Preventing a compressor surge is the primary purpose of an anti-surge controller. However, there are additional...

Thoughts about Safety, Staying at Zero

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

Catalytic Cracking of FT Products for Light Olefins Production

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 14, 2011
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
March 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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

Petroleum Resid Conversion: Opportunities and Limitations

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 14, 2011
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...

Life Cycle of Aluminum Plate Fin Exchangers

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 14, 2011
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
March 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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

Prevention of CUI: “ Roadmap to Managing CUI ”

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

New Continuous Coking Process

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

Bahx Repair

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

Processing Heavy Crudes In Existing Refineries

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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

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

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

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

Fundamentals of Alarm Management

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

New Flare System VOC Regulations & Reduction Control Options

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 13, 2011
As this abstract is written, there will be flare system emission testing in a controlled environment underway that will likely pave the way for new...

Fouling Mitigation of Quench Tower System

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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”

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

Current Methods of Measurement of NO, NO2 and NH3

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

Fouling by Asphaltenes After and During Conversion

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

Furnace Safe Park DCS Tool

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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...

Full Potential Conversion of Vacuum Resids

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

Fuel Performance Parameters for Marine Engines

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 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

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

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