What are the design standards for hydrogenation reactors?
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As the title suggests, I have been working on hydrogenation reactors recently, but I’m not sure if there are any design standards for them. Could anyone give me some advice?
There are no specific design standards for hydrogenation reactors.
The design standard is based on GB150; specific structural designs can be carried out in accordance with the relevant standards applicable to them.
Thank you for the answer from above. What are the other standards involved?
The design of hydrogenation reactors requires consideration of temperature, pressure, and the components involved in the reaction, which in turn determines the materials and their grades to be used; the relevant standards are mainly GB150 and others.
Based on the hydrogen partial pressure and operating temperature, consult the Nallson curve to determine the appropriate material. There are no other specific regulations. It’s just that the pressure and temperature are high, and the wall thickness is large; in recent years, monolithic forgings have been used more often.
Application documents: ASME Boiler and Pressure Vessel Code, Volume II – Materials; Part A: Steel Materials; Part C: Electrodes, Wires, and Filling Metals; Part D: Properties. Volume V: Nondestructive Testing. Volume VIII: Pressure Vessels, Volume 2: Other Codes. Appendix 26: Mandatory requirements for welding and heat treatment of Cr-Mo steels. Code Case 21513: Cr-1Mo-1/4V-Co–Ca alloy steel plates and forgings. Code Case 2235: Use of ultrasonic testing in place of radiographic testing. Volume IX: Evaluation of welding and brazing. SA-20: General technical requirements for steel plates used in pressure vessels. SA-182: Technical requirements for forged or rolled alloy steel pipes, flanges, forged fittings, valves, and components for high-temperature service. SA-335: Technical requirements for seamless ferritic alloy steel pipes for high-temperature service. SA-336: Technical requirements for alloy steel forgings used in high-temperature pressure-bearing components. SA-369: Technical requirements for carbon steel and ferritic alloy steel forgings and bored tubes for high-temperature service. SA-387: Technical requirements for chromium-molybdenum alloy steel plates used in pressure vessels. SA-435: Ultrasonic direct-wave testing of steel plates. SA-508: Technical requirements for quenched and tempered, vacuum-treated carbon steel and alloy steel forgings used in pressure vessels. SA-541: Technical requirements for quenched and tempered carbon steel and alloy steel forgings used in pressure vessel components. SA-542: Technical requirements for quenched and tempered chromium-molybdenum alloy steel plates used in pressure vessels. SA-578: Ultrasonic direct-wave testing of ordinary steel plates and composite steel plates for special applications. SA-832: Chromium-molybdenum-vanadium alloy steel plates for pressure vessels. ASNT SNT-TC-1A: ASTM G-146: Standard method for evaluating the delamination of stainless steel claddings in steel plates used in high-temperature, high-pressure hydrogen-handling applications. AWS A4.2: Standard procedure for calibrating magnetic measuring instruments for determining the δ-ferrite content in welds of austenitic and austenitic-ferritic duplex stainless steels. A4.3 Standard Method for Testing the Content of Diffused Hydrogen in the Weld Metal of Arc-Welded Martensitic, Bainitic, and Ferritic Steels WRC Bulletin 342 Stainless Steel Weld Metal: Determination of Ferrite Content
There are no specific design standards; the relevant guidelines are mainly based on GB150-1998 for steel pressure vessels and related standards.
In China, it’s the tolerance specifications and 150 and such. Abroad, hydrogenation reactors are generally manufactured in accordance with API 934-2000, which is more specific
I agree with Little Bear’s opinion. There are no specific standards in the country. It is mainly based on API standards. That hydrogen partial pressure curve also follows the API standards.