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July
2020
HYDROCARBON
ENGINEERING
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Elliott Group’s Cryodynamic Products
For nearly 50 years, Cryodynamic Products, a business of
Elliott Group, has been providing Cryodynamics® pumps
and expanders for liquefied gas and aggressive fluid
applications to producers around the world. The company
offers both standard and custom-engineered cryogenic
pumps and expanders for marine and land-based services.
Equipment applications include liquefaction, storage and
regasification for liquefied gas carriers, FSRU, FLNG, FSU,
LNG bunkering, LNG fuelling applications, and storage and
transport solutions for liquefied gases, petrochemicals,
and hazardous fluids such as ammonia, liquid nitrogen,
and liquid hydrogen.
Cryodynamics® cryogenic pumps and expanders
feature the safest design for centrifugal rotating
equipment. The motor is designed to be submerged in an
oxygen-free cryogenic liquid, minimising the number of
electrical components installed within the hazardous
area, and eliminating the potential for gas ignition. There
is no need for rotating seals, further eliminating a source
for leaks. Rotating components are contained within
casings and submerged within a secondary tank or vessel,
providing additional protection from potential hazards.
Other features include a patented Thrust Equalizing
Mechanism (TEM®) and exceptional pumpdown suction
performance.
With the same advanced design and safety features as
our pumps, Cryodynamics® expanders offer added benefits
to the liquefaction process including power recovery,
reduced boil-off gas, increased production, and greater
efficiency. These combined benefits contribute to higher
profitability and a rapid return on investment.
Cryodynamic Products aftermarket services include
installation, maintenance, repairs, emergency response,
parts management, service engineering, training, and
customised research.
MOGAS Industries
MOGAS Industries is a severe service technology company, providing
world-renowned services and severe service, application-specific
products for critical valve applications in power, mining, oil and gas,
refining, chemical/petrochemical, pulp and paper, and specialty
industries. Since 1973, MOGAS has been a world leader in isolation and
control valve solutions and engineering services for refining applications
such as heavy oils processing, catalytic cracking, and delayed coking.
As a complement to the MOGAS delayed coking isolation valves,
most recently the company’s delayed coking innovations have extended
to revolutionising plant efficiency and reliability with its DV-4 switching
valve. For years, a delayed coking unit processing Canadian oil sands
crude in the mid-west US accepted as ‘normal’ from their existing switch
valve original equipment manufacturer (OEM) several issues in its
switching operation, such as sticking valve, coking up the valve body,
excessive steam usage, undependable deliveries, and lack of service
support.
MOGAS’ sales and engineering teams prioritise collaboration with
customers to develop custom designs. Its valves overcome obstacles and
find solutions to lower high operating costs by eliminating excessive
steam consumption. The company’s global service team is present if
needed for customers requiring immediate support or repair.
Design innovations are key, including the DV-4 switching valve’s
encapsulated seat and Belleville spring, as opposed to the traditional
bellows seal, allowing
the seat to float more
freely in the valve
body and to maintain
contact with the ball
without increasing
Two 8 in. DV-4 switching valves recently
installed in a US delayed coker unit operate
at 11-hour cycles, a feat only achieved in a
couple of units worldwide.
Cryodynamics
®
Pump installed at an LNG liquefaction
terminal in North Africa.