Page 89 - Impiantitica industriale

MAIN APPLICATION

Desanding hydrocyclone, the compact

and high-efficiency solution for solid

particles removal from liquid streams

Cannon Artes, in collaboration with
the University of Salerno, developed
a semi-empirical model for the
prediction of solids removal from
water, as a function of operative
conditions; model parameters are
based on the results of experimental
tests conducted on a pilot scale plant

Serena De Maria, Ivan Saracino, Walter Tina,
Salvatore Incarnato
Cann on Artes
3D model of desanding hydrocyclone installed on platform in Congo
olid–liquid (S-L) hydrocyclone allows a
continuous and effi cient separation of
fi ne particles, mainly sand and other fi ltration systems for some advantages that are
solids, with dimensions in the range defi nitely relevant in the upstream industry:
5-100 µm. This technology provides
Sthe best fi tting solid removal solution • Reduced treatment times: Treatment times
in industrial process and waste streams when a are very low (about 2-3 seconds) if compared
very effective separation is required, such as pet- with other traditional gravity-based systems.
rochemicals processing, mining and the food in- • No moving parts: separation is completely
dustry. gravity-driven, thus no moving parts are pres-
ent in the system with lower mantainance and
One of the main application of hydrocyclone de- operative costs.
sanding is produced water treatment in the oil&gas • No chemicals required: the system is self
upstream sector. cleaning for the effect of gravity, hence no
In this case, desanding hydrocyclones are installed chemicals are required during operation.
at the outlet of three-phase separators with the • Continuous process: Since no backwashing
aim to protect the downstream equipments such of the system is required, service time is very
as deoling hydrocyclone, CPI, fl otator and media high.
fi lters. • Low footprint: Solid-liquid hydrocyclones
Desanding can be used also in order to avoid sol- have footprint lower than other conventional
ids accumulation in the reinjection water to achieve solid removal treatments. For example typi-
the maximum allowable solids concentration of 5 cal desander volume is about 10% less than
ppm. the dimensions of a media fi lter with the same
solid removal capacity.
This technology is preferred to the most common • Modularity: Possibility to operate in a wide

Impiantistica Italiana - Marzo-Aprile 2021 83