Heat Transfer
Validate skin temperature in refractory-lined pipes using manual calculation vs. FEA analysis
Accurately estimating skin temperature and understanding the impact of refractory lining on thermal performance are crucial aspects of piping system design, operation and maintenance. By recognizing the multifaceted role of refractory lining in enhancing operational efficiency, mitigating risks and extending the lifespan of industrial piping systems, industries can optimize their processes and ensure the reliability and safety of their infrastructure.
Review steam system designs to accelerate chemical industry decarbonization
Industrial steam systems range from simple systems comprising a low-pressure single steam user to a complex system with multiple pressure levels, multiple generators and multiple users integrated with an onsite cogeneration facility. This article will present the typical CO2 emissions estimates for chemical and petrochemical facilities and describe options available to reduce these emissions through additional heat integration, fuel switching, and the use of heat pumps and electric boilers.
The purification of benzoic acid using dividing wall columns
In one recent project for a customer based in Asia, the authors’ company suggested the combination of distillation and crystallization techniques to obtain high-quality purified benzoic acid. Encouraged by the successful startup of this processing train, the customer began to schedule a second project. The authors’ company was asked to optimize the purification process to improve cost and operational efficiencies. The two existing columns, which remove lights and heavies, respectively, from the crude benzoic acid feedstock were investigated to identify key opportunities. The feasibility study based on the feed composition confirmed that the existing columns could be converted into a single dividing wall column (DWC).
Meet gasoline quality and process safety requirements through new alkylation technologies
The catalytic alkylation process is very attractive to countries with high gasoline consumption and a sizable availability of LPG. This process can produce high-octane gasoline with low levels of contaminants, although there are high capital investment and operational costs associated with this technology.
The effects of cooling water parameters on condenser brass tubes
This work is focused on the effect of cooling water parameters on admiralty brass tubes. The effect of high free chlorine on the corrosion rate of brass tubes has been investigated by scanning electron microscopes (SEMs) and eddy current test (ECT) methods and the laboratory results of the cooling water were determined and discussed. Also, the tendency of the feed water scaling indices that is LSI, PSI & RSI was calculated. The results show that a dezincification corrosion mechanism was observed due to the high-level free chlorine on the admiralty brass tube.
Honeywell expands licensing agreement to support energy transition with new flare technologies
Honeywell announced a significant expansion of its licensing agreement with AFG Combustion and its subsidiary, Greens Combustion Ltd., to include Callidus flares. This expanded agreement not only doubles the range of greenhouse gas-reducing Callidus Ultra Blue Hydrogen process burners but also enhances global customer support.
Digital Feature: Minimizing the cost of corrosion: Budgeting for industrial asset preservation
Advanced budgeting for corrosion protection is critical to industrial facility management. Since the urgency of the matter is often not realized until a failure or accident occurs, the article provides several tips to help maintenance, purchasing or corporate teams start budgeting for preservation before an emergency happens.
Decarbonizing steam crackers: Key technical challenges of transitioning from natural gas to hydrogen
In the petrochemical industry, olefin crackers utilize significant amounts of heat to crack hydrocarbons into essential chemicals, such as olefins and aromatics.
ClearSign Technologies to install 26 burners at U.S. Gulf Coast chemical facility
ClearSign Technologies will retrofit four process heaters with a total of 26 ClearSign Core™ burners to be installed in a U.S. Gulf Coast chemical facility.
Research and application of proprietary cold oil absorption technology in the recovery of refinery dry gases
With the increasing shortage of global energy and resources, the recovery and utilization of refinery dry gases have become important topics of concern.
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