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PSA (pressure swing adsorption) pressure vessels are often used in the purification of hydrogen after syngas production. These vessels are manufactured from carbon steel and are welded in accordance to design codes and standards. Due to fluctuations in pressure, these vessels are usually affected by fatigue damage which can be accelerated due to exposure to hydrogen. The purpose of this project is to establish a relevant materials database for PSA steel in hydrogen that will be useful for predicting ...
last person joined 4 months ago
ASSET (Alloy Selection System for Elevated Temperature) is a powerful high temperature corrosion prediction program that was developed in a JIP with MTI, Shell and others with DOE funding in 2000-2005. Action is required to update the software and improve its functionalities so that it can continue to be of value to MTI members.
last person joined 3 days ago
Rotating equipment components often have long lead time due to complexities of the design. Many components are manufactured through a combination of casting and/or complex machining. Economic pressures have resulted in the consolidation of many OEM manufacturers, with globalized supply chain leading to additional consolidation of manufacturing capabilities. Advancements in 3D Digital Reproduction and Additive Manufacturing offer potential alternatives to address these issues by providing alternative ...
Combined with project 422 (Supplementary Specifications for SMRs and Ethylene Furnace Coil Materials)
last person joined 4 days ago
AMPP SP0170 provides guidance on the sensitization temperature range for common stainless steel grades. There is evidence from observations made in operating plants that these current temperature ranges might be overly conservative. This project will focus on reevaluating the long-term minimum temperature limits for sensitization of chemically stabilized stainless steel grades, 321 and 347. The aim is to determine if a higher minimum sensitization temperature can be supported from recent technical ...
Project aims to characterize and analyze donated material before conducting additional testing on welded samples to generate creep and impact data to support improved fitness-for-service calculations, particularly for SMR outlet manifold components.
This project follows the completed project 356 which produced an analysis of the existing literature on this topic and guidance on an experimental plant to determine the remaining lifetime of components composed of Alloy 20Cr32Ni after aging at high process temperature. The objective of this project is to conduct an experimental evaluation of this alloy following aging in a process environment to determine remaining utility for further plant service.
update of previous publication on plastic lined pipe to include ASME updates and housing materials other than metallic
last person joined 23 days ago
Create a guideline for failure mechanisms in the pulp and paper industry. This reference will include generic pulp and paper unit Process Flow Diagrams with the applicable damage mechanisms for each system in the process. Specifically, it will include the following mechanisms which are not available elsewhere: - Continuous Digester Caustic Stress Corrosion Cracking inspection techniques and repairs - Sulfur Stress Corrosion Cracking (Turpentine Systems) - Stress Assisted Corrosion - Recovery ...
last person joined 2 months ago
Evaluation of Fiber Optic High Temperature Multiplexing Sensing Technologies for Continuous Metal Temperature Monitoring in CPI and Refinery Applications. Evaluate sapphire fiber optical technology with Fabry-Perot interferometer, Fiber Bragg Grating, Rayleigh Scattering-Based Sensors using annealed silica fiber, and other viable fiber optic technologies to make high temperature measurements suitable for CPI process operations. Evaluate methods of instrument installation on existing tubes/equipment ...
last person joined one month ago
last person joined 29 days ago
The book, “MTI MANUAL NO. 8 FRACTURE CONTROL FOR THE CHEMICAL PROCESS INDUSTRIES” by D. Broek was published in 1983. It is a very instructive book aimed at providing a solid understanding and appreciation of the basics of fracture mechanics and its use to a technical audience not expert in this technology. Many technical developments in the use of fracture mechanics applied to process equipment have occurred in the 40 years since the 1983 publication. This book is of high quality and explains ...
Develop design methodology for FRP lap joint flanges. once a design methodology is developed Flanges shall be validated via FEA and pressure testing
An Alloy 625 vessel with heads, piping, welds, and flanges that was operated at the lower temperature regime of the TTT curve with exposure of about 40,000 hours has been removed from service and is available for metallurgical analysis. The project objective is to create an addendum to the Atlas of Microstructures for 625 with analysis of this material that would document the microstructure of this alloy with actual long term service exposure at moderate temperature.
There are restrictions for in-service welding on carbon steel for external attachments used in alkaline service because cracking can occur with the residual stress contributed by welding when in contact with the process fluid. There is belief that in-service welding could be possible for these situations if the wall thickness is great enough so that the stress field due to welding does not reach the I.D. surface in contact with the process, and PWHT would not be required. The project objective ...
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