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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 5 months ago
The project objective is to investigate the relationship between various shot peening parameters on the galling and corrosion resistance of select nickel-based alloys.
last person joined 7 days ago
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 ...
Combined with project 422 (Supplementary Specifications for SMRs and Ethylene Furnace Coil Materials)
last person joined 12 days ago
update of previous publication on plastic lined pipe to include ASME updates and housing materials other than metallic
last person joined 4 months ago
Study the corrosion behavior of bio-oil under low temperature conditions where carbon steel, low-alloy, and 3XX materials may or may not have acceptable corrosion rates. Additional work includes a surface corrosion study and report of Phase 0, Phase 1, and Phase 2 coupons.
last person joined 20 days ago
Half pipe reactors are used frequently in petroleum refining and chemical processing plants. Due to the characteristics of their construction this reactor design can develop stress corrosion cracking (SCC) under the half pipe often due to the coolant chemistry. SCC causes leaks and can result in decommissioning with extremely long replacement times. This project will conduct a search of the literature on the topic and include a test program to identify the best options for prevention and repa ...
develop a guide for the installation of Dual Laminate piping - initial fabrication and material selection is out of scope
Determine what is the maximum rate of temperature change without damage to the lining system via FEA modeling. There is minimum adhesion values provided in various publications and standards. ASME RTP-1 Mandatory Appendix M-12 provides values in M12B-614.4 for thermoplastic linings on FRP substrates. Adhesion strength testing on carbon steel in accordance with ASTM D903 and D1781. These values shall be the basis to determine onset of failure using FEA modeling.
last person joined 22 days ago
There are numerous standard ASTM test methods for determining the relative resistance of materials or surface treatments to impingement, dry sliding wear, and wet reciprocating wear, however, there is no established correlation between a material’s mechanical properties and its wear resistance. The relationship between such wear tests and actual wear performance in equipment is unclear. The objective of this project is to develop approaches to predict wear rates for a range of materials frequently ...
last person joined 26 days ago
Develop Surface Modification Guide that focus on the application in the process industry. This guide shall cover the latest developments used in shops that are valuable for process industry applications. Conventional techniques, as well as new technology such as laser cladding, high velocity oxygen Fuel, diamond like PVD coatings will be included. Topics to be included in this Guide are descriptions of techniques and technology, wear mechanisms, selection criteria, QA/QC guidance for new equipment ...
last person joined 28 days ago
This project will search for a firm that is able to non-destructively detect titanium hydriding in plant equipment. Past MTI titanium hydride projects looked at one specific method with the aim to adapt the method to identify titanium hydriding. This project has a much broader perspective aiming to test all techniques that have the potential to detect titanium hydriding. Industry information suggests that a method already exists. A few companies indicate they can non-destructively detect titanium ...
Guidelines for evaluating equipment used in manufacturing of chemicals used in the high purity industry.
This project is intended to evaluate the relative corrosion resistance of unique alloys and hardfacings used in polymer extrusion equipment. A design of experiments to cover 3 chemical process environments involving alloys typically used in extruders. The primary benefit of completing this project is the creation of consistent corrosion data that can be used to make informed choices for polymer processing equipment materials for mildly corrosive polymer processing - improving equipment reliability ...
Phase 1 (MTI project #386) qualified an additive material manufacturing procedure using the Gas Metal Arc Directed Energy Deposition method (GMA-DED) and ER-2594 wire filler metal (equivalent to super duplex stainless steel UNS S32750) per the requirements of sections 1-4 and 6 in ASME Code Case and ASME Section IX, Part QW, Article VI suitable for equipment fabrication. The Phase 2 project objective is to use the results from Phase 1 to fabricate a small ASME vessel with a combination of wrought ...
last person joined one month 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 8 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 2 months ago
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