Kent Refinery

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Kent Oil Refinery
Abandoned car park - geograph.org.uk - 953010.jpg
Former site in December 2007
Kent UK location map.svg
Red pog.svg
Kent Oil Refinery on the Isle of Grain (Medway)
Country UK
CityIsle of Grain
Coordinates 51°27′00″N0°41′20″E / 51.45°N 0.689°E / 51.45; 0.689
Refinery details
OperatorBP
Owner(s)Anglo-Iranian Oil Company, BP
Commissioned1953 (1953)
Decommissioned1982
Capacity11 million tonnes per year
No. of employees1,500

The BPRefinery (Kent) was an oil refinery on the Isle of Grain in Kent. It was commissioned in 1953 and had a maximum processing capacity of 11 million tonnes of crude oil per year. It was decommissioned in August 1982.

Contents

History

Background

The oil industry was first established on the Isle of Grain in 1908 when, in association with the naval dockyard at Sheerness, the Admiralty constructed an oil storage and ship refuelling depot on the Medway. [1] In 1923 the Medway Oil and Storage Company (MOSCO) constructed an oil refinery and tank farm adjacent to the Admiralty site. [1] MOSCO was absorbed into the Anglo-Persian Oil Company (APOC) in 1932 after which oil refining at Grain ceased. (APOC was renamed the Anglo-Iranian Oil Company in 1935, then British Petroleum Company in 1954).

Further up the Medway at Kingsnorth, Berry Wiggins and Company started constructing an oil refinery and tank farm in 1930. [1] This refinery was expanded both before and after the Second World War, and finally closed in 1977.

In 1943 a spur pipeline (T/D/G) was constructed to the Isle of Grain from off the Thames to Dungeness pipeline (T/D) which fuelled DUMBO, part of Operation Pluto. [2] The spur line to Grain provided access to the Admiralty oil storage facility.

The BP Refinery (Kent) was one of several oil refineries – including Esso Fawley on Southampton Water – which were built in the post-war period for the production of refined petroleum products. These realised the UK government's strategy to save dollars by encouraging the refining of Middle Eastern crude oil, and to keep within the UK the added value of such refined products. [3]

The post-war refineries changed Britain's coastal geography: they required large amounts of land and were built in previously rural coastal areas. [3] The refineries also provided feed-stock for the land-hungry and intrusive petrochemical industry often built adjacent to refineries. [3] There was a tension between these rural developments and the government policy of supporting industrial development in urban areas where there was high unemployment. [4] Despite reservations about these developments, the UK government approved the Kent and Fawley refinery plans in 1947, although the developments took some years to be built. [3]

Construction

The Anglo-Iranian Oil Company started construction of the Kent Refinery, also unofficially known as Grain Refinery, in 1950. The managing agent was the Badger Company with construction undertaken by McAlpine and Wimpey. [5]

Pre-construction groundwork on the South of the site including the filling-in of several unwanted watercourses including Well's Fleet, Littlechalk Fleet and most of Greatchalk Fleet, this entailed the use of one million cubic yards (765,000 m3) of soil obtained from higher ground to the north of the site. [5] [6] Towards the south-east of the site the ground level was increased with six feet (1.8 m) of compacted sand, dredged from the sea. [5]

Six thousand concrete piles provided the foundations of major plant and equipment on the marshy soil. [5]

A bay on the Saltpan Reach of the River Medway was enclosed to provide a storage reservoir for cooling water, this filled on the rising tide. A ¾ mile-long (1.2 km) water channel (TQ865739 to TQ868749) [7] was constructed to take water from the reservoir across the site to the refinery pump-house for distribution around the site for process cooling. [5] The channel had a volumetric capacity of 16 million gallons (73,000 m3). The refinery's cooling water circulation system had a capacity of 3.5 million gallons/hour (15,900 m3/hour). [5]

Initially five new jetties were constructed on the River Medway with the capacity to handle ships of 32,000 tonnes. [5] A deep-water channel was dredged to allow ships to access the jetties from the Thames Estuary. This channel was 4 miles (6.4 km) long and 800 feet (240 m) wide and was dredged to give a minimum water depth of 28 feet (8.5 m) at low water. [5]

The initial phase of construction entailed the use of: [5]

At its peak the construction activity on the site employed 8,000 workers; 1,500 were housed in a construction camp at Wallend in the centre of the site. [6] [5]

In 1952 the Thames to Grain (T/G) pipeline was recommissioned to carry refined fuel from the BP Kent refinery to the Walton storage depot. The movement of fuel was now in the opposite direction to that originally designed. This led to the need to install new pumping units and to construct a new pump-station at Stoke (TQ851757), located close to the Isle of Grain refinery. [8]

The first phase of construction cost around £40m. [9]

Production

The first tanker containing 27,000 tonnes of crude oil from the Middle East arrived at the refinery in October 1952. [5]

The initial phase of the refinery was commissioned in several stages: [5]

The East Coast floods of January 1953 inundated the refinery site, covering it in water and mud. [5] The flood displaced some of the pipes on the pipe tracks. Nevertheless, the refinery went on-stream three weeks later in February 1953. [5]

The refinery had an initial throughput capacity of four million tonnes per year of crude oil. [11]  Crude oil mainly came from the Middle East with smaller amounts from Libya, Nigeria and South America. [12]

On 5 April 1955, the site was visited by the Queen and the Duke of Edinburgh. [9]

Following the initial phase of commissioning the refining capacity was increased and new processes were planned, constructed and commissioned over the period 1956–60. [13] [10] A desulphurising plant was commissioned in Autumn 1957. The H2S absorption towers, hydrofiner, and sulphur recovery plants were commissioned in Autumn 1957. The No. 2 Crude oil distillation unit and stabilisers were commissioned at the end of 1957. [10]

The availability of suitable feed-stock on the site lead to the construction of several facilities adjacent to the refinery. The South Eastern Gas Board SEGAS constructed a gas-from-oil plant in 1957. [1] The gasification plant had a projected capacity of 80 million cubic feet, gas mains were laid from the Isle of Grain to Strood to feed gas into a trunk main system to provide gas south of the Thames from Sittingbourne in the east to as far as Guildford in the west. [14] A petrochemical plant to manufacture synthetic fibres, a joint venture by BP and California Chemicals known as BP-California Ltd, was planned and constructed from 1960. [1]

Process units

The principal processing units and plant installed by 1961 included: [10]

By 1961 the cost of the refinery was £88 million. [10]

Intermediate products from the refinery processes included: straight run blending components; isopentane; propane; butane; aviation alkylate; heavy alkylate; thermal reformate; aviation extract; Udex raffinate; aviation platformate; total platformate; heavy platformate; aviation fuel (ATG); acid washed kero; sweetened kero; kero raffinate; kero extract; light cat-cracker spirit; heavy cat-cracker spirit desulphurised gas oil; straight run gas oil; fuel oil blending components; extracts, lubricating oils. [10]

In 1962 a third £3.5m catalytic reformer was built together with a £5m aromatics plant. [15] The main products of this plant were ortho and para xylene. The para xylene was for the preparation of terephthalic acid, an intermediate in the production of terylene. Three tall distillation columns of the orthoxylene unit, part of the aromatics plant, were constructed in 1962. [16] By 1964 the capacity of the refinery had increased to 9.5 million tonnes per year; [17] it was the second largest refinery in the UK, second only to Fawley (11,500 tonnes per year). Kent refinery processed about fourteen per cent of the UK's oil. [17] By 1971 it was capable of processing 11 million tonnes. The refinery began to process British North Sea crude oil from June 1975, this was with the arrival of the tanker Theogennitor with crude from the Argyll oil field. [18]

The refinery provided local employment opportunities; prior to its construction many people were working on farms at very low wages. [19]

Products

The principal products from the refinery were: [10]

Closure

The rising price of oil in the 1970s resulted in a slump in consumption, which meant there was a considerable excess of refining capacity throughout Europe. In August 1981 BP Oil announced that the BP Kent refinery would close in 1982 with the loss of 1,670 workers plus another 1,000 construction jobs in the area. [20] The Kent refinery closed on 27 August 1982. [21] The oil storage facility continued for some years; the last oil flow by rail from Grain ran in 1999. [22]  After closure some of the western part of the site was developed by British Gas as a liquefied natural gas plant Grain LNG Terminal and some as London Thamesport container terminal.

DUMBO pipeline in 1944 Operation PLUTO Location of Pipelines.png
DUMBO pipeline in 1944

Structure

At its maximum extent the refinery and its tank farm covered a site of four square kilometres (400 hectares). The western boundary of the site was defined by the Yantlet Creek. [5]

The main structures on the site included:

The oil-fired Grain Power Station was constructed adjacent to the refinery in the late 1970s to use fuel oil from the refinery.

The refinery was accessed by road via the A228 and B2001.

See also

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References

  1. 1 2 3 4 5 Carpenter, Newsome, Small and Hazell (2013). Hoo Peninsula Historic Landscape Project. Portsmouth: English Heritage. pp. 31–38.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. ↑ D.J.Payton-Smith: Oil - A Study of War-time Policy and Administration p411. HMSO SBN 11 630074 4
  3. 1 2 3 4 More, Charles (2009). Black Gold: Britain and Oil in the Twentieth Century. Londdon: Continuum. pp. 122–123. ISBN   978-1-84725-043-8.
  4. ↑ Moxon, J.W.J. (1971). "The Industrial Development Certificate system and employment creation". Urban Studies. 9 (2): 229–233. doi:10.1080/00420987220080261.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 "Kent Oil Refinery (1954)" . Retrieved 11 April 2019.
  6. 1 2 "BP Kent Refinery" . Retrieved 11 April 2019.
  7. ↑ Ordnance Survey 1:50000 First Series Sheet 178 dated 1974.
  8. ↑ Tim Whittle: Fuelling the Wars - PLUTO and the Secret Pipeline Network 1936 to 2015 published 2017 pp111-112. ISBN   9780992855468
  9. 1 2 "QUEEN AND DUKE VISIT KENT OIL REFINERY British Petroleum Company's latest refinery has royal visit". Itnsource.com. 1955. Retrieved 28 April 2017.
  10. 1 2 3 4 5 6 7 8 9 10 BP (1961). BP Kent Refinery. BP.
  11. ↑ Cracknell, B.E. (1952). "The Petroleum Industry on the Lower Thames and Medway". Geography. 37 (2): 88.
  12. 1 2 "Kent History Forum" . Retrieved 11 April 2019.
  13. ↑ The National Archives, Ministry of Fuel and Power, BP's proposed expansion; Kent (Isle of Grain) Refinery, POWE 61/38, 1956-1960.
  14. ↑ "Gas from Oil". The Times. 13 September 1955.
  15. ↑ "Aromatics plant for BP refinery" (PDF). doi:10.1595/003214062x638691. S2CID   16817185. Archived from the original (PDF) on 23 February 2019. Retrieved 12 April 2019.
  16. ↑ "George Wimpey advertisement". The Times. 19 March 1962.
  17. 1 2 Luckas, M.R. (1965). "Recent Developments in the United Kingdom Oil Industry". Geography. 50 (2): 159.
  18. ↑ "British Crude Oil arrives at BP Kent". 10 April 2004. Retrieved 11 April 2019.
  19. ↑ "Histories of the Hoo Peninsula" . Retrieved 11 April 2019.
  20. ↑ "BP to close refinery at Isle of Grain". The Times. 1 August 1981.
  21. ↑ "BP Oil Refinery, Isle of Grain, Kent | Educational Images". Historic England . Retrieved 28 April 2017.
  22. 1 2 "Grain Refinery - Kent Rail" . Retrieved 11 April 2019.
  23. ↑ Jacobs, Gerald (1994). Track Diagrams - England South and London Underground. Exeter: Quail Map Company. p. 7. ISBN   1-898319-07-3.
  24. ↑ "Horton spheres - BP refinery" . Retrieved 12 April 2019.
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