If you are designing a distilling, absorption, scrubbing, or stripping tower or column for effective separation of various chemicals then you also need to ensure proper design of packed column for optimized yields. You need to stack the right type of packing in an optimum manner and in the right quantity to ensure that your desired chemicals are separated and delivered in a safe manner, and that too without causing a sudden fall in pressure during the required process.
Your column design would start with your specific requirements in terms of quantity along with the required process that needs to be executed to deliver various chemicals while still saving energy at the same time. You can choose the width and height of your column based on your production requirements as well as the packing material and type that will be stacked within the column. You will also need to choose between structured and random packing even as you seek out packing that can be safely stacked within the column without fear of breakage or distortion.
There are different laws that offer calculations for the design of packed column that you plan to construct based on whether you wish to opt for different types of rings or saddles for the column. You can choose between raschig rings, pall rings, berl saddles, cascade mini rings, intalox saddles, and various other types of random packing based on the chemicals that you need to separate, strip, or distill, among performing other processes based on your specific requirements. You can also choose from various materials for the packing such as different types of metals, plastics, and ceramics within the saddles or rings that you finally choose. Each material has specific characteristics with its own pros and cons that should be studied in great detail so that the final design of packed column that you choose rewards you with a purer and higher yield that is extracted in a safe manner.
While different types of saddles can optimize your processes due to their unique shapes that offer increased surface area for improved liquid vapor distribution, they are also quite vulnerable to damage due to that very design. If you dump too many saddles within your column then you might simply end up with crushed packing at the bottom of the heap that could further impede your chosen process. On the other hand ceramic raschig rings offer a tough solution to this problem since these rings are quite hardy by design and construction. Ceramic is also highly resistant to high heat as well as most organic chemicals and strong acids too.
Since raschig rings made out of ceramic are quite cheap to produce on a large scale, you can surely reap the benefits of lowered costs against optimum performance when you stack these tough rings in your column and watch them create optimum liquid vapor distribution without high pressure drops that could require more energy to sustain the process.
If your plant requires to distill or absorb or strip various chemicals then you will certainly need to design and install a matching tower or column to achieve optimum separation in a completely safe and cost effective manner. You should start out with the best possible design of packed column once you choose the right packing material and size that can help deliver your chosen chemicals with the least possible cost and effort.