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Jul 1, 2019
The five ‘musts’ for efficient continuous catalyst regeneration in PDH process
Industry Manager, Refining and Chemicals
Been struggling to take your propylene production up a notch? Is your continuous catalyst regeneration process not helping with this? Perhaps you could start improving production efficiency by checking your catalyst handling valves.
Simple but challenging
The effective implementation of propane dehydrogenation (PDH) has a lot of challenges, many associated with the catalyst at the core of the process. Coke formed during the process coats the catalyst which reduces the catalyst activity.
One good method of maintaining optimal catalyst activity is continuous catalyst regeneration (CCR). The efficiency and cost effectiveness of CCR comes down to the catalyst handling valves. These small but meaningful components can play a central role in the efficiency of your entire production.
If you are a propylene producer focused on improving competitiveness, having a few quality valves is not enough to maintain top production. Having the most reliable, accurate and application-appropriate valves should be your target – throughout your process.
Five criteria of a good CCR valve
At minimum, the CCR valves you select must meet the following five criteria:
Must not allow catalyst or dust to get stuck in cavities
Must be able to handle the abrasive catalyst
Must correspond to Class VI shut-off requirements
Must have a stroking time of less than 10 seconds
Must be highly robust and reliable, able to cycle 20,000−30,000 times annually
Do not hesitate to demand industry- and licensor-proven performance. These valves must be specifically designed to last for your desired process uptime targets.
Benefits of reliable CCR valves
Get industry-wide, well-proven performance
Detect possible problems in advance with advanced SG9000 diagnostics
Reduce catalyst waste
Valve seat designs which are capable of handling the catalyst or dust
Meet desired process uptime targets with valves that last
Save piping and valve costs with compact, lightweight valve solutions
Improve process efficiency with reliable catalyst regeneration
These details matter so much that only a well-considered valve selection is capable of ensuring an efficient process.
With the right criteria and correct valves, improving total regeneration efficiency and maximum throughput for your dehydrogenation process will be only a matter of time.
If you care for more details about the CCR process and how the right valves are crucial to getting the most out of it, read this application report.
This blog post has been up-dated in July 2020, due to company name change to Neles.
Running a reliable and competitive ethylene plant in an ever-growing ethylene production market is a matter of overcoming many challenges. However, choosing valve solutions that offer maximum reliability, safety and performance for your application is the first step to success.