Since mid-80s, Baretti has successfully designed and installed structured packing and relevant internals in fractionation columns. The main refinery experiences have been in:
Other areas of experience are:
BARETTI: An established name in the fractionation column business. Our trays have been installed in every type of columns and applications.
Liquid distributors are critical to the performance of the packed columns and the uniformity of the liquid flow is the main factor in designing these devices. The distributor is normally supported from the column shell and it is located at a distance between 50 to 150 mm from the top of the bed.
The main characteristic for a distributor can be identified as follows:
Resistance to fouling is a very important characteristic because the blockage of some holes due to presence of scales, polymers or coking of the distributor can badly affect its performance. In particular, the following points should be considered:
Turndown is normally limited to 50-110%, but higher ones (1:10) can be achieved by use of multiple levels of holes. Pan, V notched or spray distributors cannot have very high turndown due to the impossibility of having more than one level of holes.