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BOC Immingham Dissolved Acetylene Project Environmental Statement: Vol. 2 Main Text
Buildings and Structures
Overview
3.127 The nature and form of the proposed buildings vary depending on the activity carried out within.
The very simplest structures form shields to protect the contents from the weather whilst the most
complex must provide a temperature controlled work space with over-pressure release features
and potentially blast walls incorporated. The main structures and their substructures are discussed
in turn below.
Amenity Building
3.128 The Amenity Building (see Figure 3.2) is a single storey structure. This building has a flat roof
which will be equipped with solar panels. The only doors and windows to the staff areas are on the
north elevation, so as not to face either the Process Area to the south east, or the acrylonitrile
pipeline to the south west.
3.129 The Amenity Building has been designed to provide welfare facilities for 17 workers, along with an
office for the site Operations Manager, and a Communications Room. The welfare facilities
include lobbied male and combined female disabled toilets, a general space to be used as a mess
briefing area and a kitchen. The mess area will provide access to the Communications Room,
which will house IT telephony security equipment. This building also houses in separate spaces
the Boiler Deluge Pump Room and Store Maintenance Room.
3.130 The overall building is expected to have an estimated footprint in the region of 97 m 2 . It is 3.95 m
high to the top of the roof ridge; however, because of the solar panels it has an overall height of
5.2 m.
3.131 The two Deluge Tanks are located to the south east of the building and the Deluge Lagoon is to
the south west.
Generator Building
3.132 The Generator Building (see Figure 3.3) is a three storey high building which is accessed by a 4 m
high sectional door with three additional single pedestrian doors on the ground floor. There is an
additional pedestrian door at high level to access the walkway to the Lime Storage Tanks. The
building has a lightweight pitched roof capable of providing relief in the event of an overpressure
event.
3.133 The ground floor of the building will contain the Generator, Gas Holder, the scrubbing systems
and the Water Softener. The building has a footprint of 140 m 2 . It is 12.8 m high to the top of the
roof ridge with an overall height of 15.8 m including vent stacks, making it the tallest structure on
the site.
3.134 In the event of flooding, the first and second floors of the Generator Building will provide safe
havens refuges for site personnel.
3.135 The Waste Liquor Storage Tanks and the Lime Sump are external, adjacent to the north western
gable of to the building. The Rainwater Harvesting Tank and Cooling Water Tower are also
external to the building, adjacent to the south eastern gable. The Acid and Lye Store is located
close to the north eastern wall.
Cylinder and Bundle Filling Building
3.136 The Cylinder and Bundle Filling Building will be designed with a roof capable of providing relief in
the event of an overpressure event, whilst the walls must be strong enough to prevent or restrict
the spread of fire. The design principles for the Cylinder and Bundle Filling Building are largely
driven by EIGA standard IGC 123 15 .
5100935.404 Environmental Statement August 2011 40