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Becht Engineering Blog

In this section of the site contributing authors submit interesting articles relating to the various services, industries and research & development efforts of Becht Engineering.

Securing the Right Expert to Support Your Lawsuit

lit-support-blog-image Becht Litigation Support
On March 25, 2016 I published a Blog titled “ Expert Witness, a Becht Engineering Service to Avoid ”. This Blog focused on a number of elements that can be used to assure projects do not result in litigation. These elements include: Developing a sound, complete scope of work Selecting a qualified contractor Using proven industry standards with specific addenda Putting a highly experienced management and technical team in the contractor’s office Implementing shop and field quality assurance programs Demanding timely reporting from the contractor However, we find that many times these elements are not implemented on major projects and there is a dispute over cost, schedule or performance resulting in litigation. There can also be cases involving equipment failures, underperformance of projects, patent infringement or injury where we are contacted after the litigation process is well under way. In these cases, it is critical the legal team engage the...
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Fluid Catalytic Cracking (FCC) Transfer Line Flexibility - Analysis and Design Considerations

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FCC’s are complex units - and the design of their transfer lines has some unique considerations.   While many of the lines are refractory lined to permit construction with carbon steel piping, some sections are hot walled, at temperatures well into the creep range, for the purpose of balancing thermal expansion or, in the case of piping between the final catalyst separations device and flue gas expanders, to prevent dislodged chunks of refractory from being drawn into and damaging the expander.  Below are some critical considerations: The stiffness of the piping and resultant loads on equipment are affected by the presence of internal refractory . The composite action of the steel pipe and refractory needs to be considered.  Note that this is not simply including the refractory as a monolithic element, since the refractory will have shrinkage cracks.  There is a paper by T Chadda on an approach that can...
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Risk Assessment of Refinery Hydroprocessing Unit Reactor Effluent Air Coolers (REACs) Made of Duplex Stainless Steel (DSS)

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Cracking of REAC Duplex Stainless Steel Failures of Refinery Hydroprocessing Unit REACs made of 2205 DSS have in some cases resulted in significant plant damage and extended outages for repairs.  In a few  cases, header box welds have ruptured.  Additionally, failures have occurred at tube-to-tubesheet welds and in REAC inlet and outlet piping made of DSS.  A sufficient number of failures have been reported that the API Subcommittee on Corrosion and Materials has initiated a program to survey the refining industry to understand how wide spread the issue is and to better identify factors leading to cracking.  Additionally, some process licensors have notified their customers of potential concerns and have suggested they undertake risk assessments of their DSS REACs.  In early 2016, the Materials Technology Institute (MTI) issued a publication “Fabrication of 2205 Duplex Stainless Steel REACs in Refinery Hydroprocessing Units” that reviewed case histories of failures and provided guidance...
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A Dimensional Execution Plan - Measure Up To Project Expectations

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Plan the Work and Work the Plan I am confident that we can agree that it is essential for all projects to have an execution plan to be successful. We have all heard the common phrase, “Plan the Work and Work the Plan.” Many have been participants in strategy meetings discussing the most effective and efficient means to execute a plan on capital project work. So why does it seem that in today’s age of revolutionary technology we seem to be unable to execute a project effectively, efficiently, and without mistakes that cause re-work? In the past few years, most people I know have been involved with, and witnessed projects that failed to finish on time/on budget with mistakes that abound. After working with and servicing the Engineering, Procurement, and Construction (EPC) business for over 38 years, I have experienced well executed projects and poorly executed projects. Although there can...
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