ExxonMobil's
Wet Gas Scrubbing technology selected by Shell
Posted: 18 February 2004
ExxonMobil Research and Engineering Company (EMRE) and Hamon Research-Cottrell
(HRC) announced Shell Oil Products US has selected ExxonMobil's
well-proven Wet Gas Scrubbing technology for their Puget Sound Refinery
in Washington State.
This technology will enable the refinery to reduce emissions of
sulfur oxides (SOx) and particulates from their Fluid Catalytic
Cracking Unit (FCCU) when the Wet Gas Scrubbing installation is
completed in 2006. This project is part of environmental improvement
commitments Shell Oil Products US made to the local community, U.S.
EPA and Washington State's Northwest Air Pollution Authority.
EMRE and HRC announced a license and sublicensing agreement early
last year to provide ExxonMobil's Wet Gas Scrubbing technology to
sublicensees of HRC.
Wet Gas Scrubbing removes particulates and SOx by scrubbing them
from the FCCU flue gas stream through contact with an alkali based
liquid in a venturi system. Venturi scrubbing has superior particulate
emissions capture capabilities both in capacity and particle size
when compared to alternative complicated scrubbing tower schemes.
After separation from the scrubbing liquid, the clean flue gas is
vented to the atmosphere and the liquid is further processed to
dispose of the particulates in an environmentally acceptable manner.
The Wet Gas Scrubbing system needs a very small onsite plot space
allowing for flexible placement.
Wet Gas Scrubbing can be retrofitted into all full-burn and partial-burn
FCCs, even those with first generation CO boilers and/or those operating
at very low flue gas pressure. ExxonMobil's unique Wet Gas Scrubbing
system can be designed to operate at the lowest pressure drop of
any commercial scrubber.
ExxonMobil has over three decades of experience in the commercial
application of their Wet Gas Scrubbing technology. The robustness
of these units is such that even the early generation designs continue
to perform reliably today. ExxonMobil's operating experience with
the technology has brought improvements in recent years, which have
translated to a reduction in capital costs while maintaining the
unit's top performance and operational reliability.
EMRE is the research and engineering arm of Exxon Mobil Corporation,
a leading global oil, natural gas, and petrochemicals company whose
subsidiaries have operations in approximately 200 countries and
territories.
For more information regarding ExxonMobil and technologies see
www.exxonmobil.com/refiningtechnologies.
Hamon Research-Cottrell is a global leader in air pollution control
technology and services. A member of the worldwide Hamon Group,
which is headquartered in Brussels, Belgium, Hamon Research-Cottrell
has almost 100 years experience in providing capital equipment to
a wide range of industries including: power generation, petrochemical,
glass, pulp, paper, metals and cement.
For more information on Hamon Research-Cottrell see www.hamon.com.
Posted by Richard Price,
Editor Pipeline Magazine
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