Noncatalytic Polymerization of Olefins to Lubricating Oils

Seger, F. M.; Doherty, H. G.; Sachanen, A. N.

doi:10.1021/ie50492a021

Cited by 15 publications

(14 citation statements)

References 5 publications

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“…The degree of branching will reflect the carbon number and degree of branching of the feed material. This was indeed found in practice, with purified n-1-alkenes and cracked Fischer-Tropsch wax producing good quality lubricating oils (Table 19.7) [77]. 4) The olefinic motor-gasoline quality from thermal oligomerization will be lower than that from acid-catalyzed processes.…”

Section: Thermal Oligomerizationmentioning

confidence: 83%

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Oligomerization

2011

Fischer‐Tropsch Refining

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Section: Thermal Oligomerizationmentioning

confidence: 83%

“…4) The olefinic motor-gasoline quality from thermal oligomerization will be lower than that from acid-catalyzed processes. Equal or better results were reported with HTFT material from the Hydrocol process (Chapter 7) [77]. 5) The distillate range product will benefit from the low degree of branching.…”

Section: Thermal Oligomerizationmentioning

confidence: 94%

Oligomerization

2011

Fischer‐Tropsch Refining

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“…The selection of the catalyst [39] or the use of free radical oligomerization [40] is critical to the quality of the final product. Brønsted acid-catalyzed processes are understandably unsuitable for PAO production, since double bond isomerization will result in the conversion of the n-1-alkenes into internal alkenes to produce PIO lubricant base oil.…”

Section: Group IV Lubricant Refiningmentioning

confidence: 99%

Chemicals and Lubricant Refining

Klerk

2011

Fischer‐Tropsch Refining

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“…This term includes the thermal oligomerisation of IX-olefins which is presumed to occur by a free radical process initiated by adventitious peroxide. The process has a high activation energy (Seger et al, 1950) and gives low yields of poor quality products. The use of benzoyl peroxide or a di-tertiary-alkylperoxide allows oligomerisation to take place at lower temperatures than the thermal reaction (Garwood, 1960).…”

Section: Free Radical Oligomerisationmentioning

confidence: 99%

Synthetic base fluids

Randles¹,

Stroud²,

Mortier³

et al. 1994

Chemistry and Technology of Lubricants

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Synthetic lubricants have been used for many years. In the early 1930s, synthetic hydrocarbon and ester technologies were being simultaneously developed in Germany and the US. In the US, the development of a process for the catalytic polymerisation of olefins led to the formulation of automotive crankcase lubricants with improved low temperature performance (Sullivan et aI., 1931;Sullivan and Vorhees, 1934). These products were not commercialised due to the inherent cost of the new synthetic base fluids and to improvements in the performance of lubricants based on mineral oils. In Germany, low temperature performance was one of the driving forces behind the development of similar products by Zorn (Gunderson and Hart, 1962) although the main objective was to overcome the general shortage of petroleum base stocks.With the exception of the special circumstances of World War II, synthetic lubricants did not become commercially significant until after the war. In general, the improved properties of lubricants achieved with the early synthetic base stocks could be obtained more cost effectively by improved formulations based on mineral oils. However, the requirements for lubricants, particularly military and aero-engine lubricants, to perform over increasing temperature ranges, has stimulated the continuing development of synthetic lubricant technology. Synthetic lubricants are now found in all areas of lubrication such as automobiles, trucks, marine diesels, transmissions and industrial lubricants, as well as aviation and aerospace lubricants.Many compounds have been investigated as possible base stocks for synthetic lubricants. Gunderson and Hart (1962) identified over 25, of which seven types are of major importance: • polyalphaolefins • alkylated aromatics • polybutenes • aliphatic diesters R. M. Mortier et al. (ed.), Chemistry and Technology Lubricants

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Noncatalytic Polymerization of Olefins to Lubricating Oils

Cited by 15 publications

References 5 publications

Oligomerization

Oligomerization

Chemicals and Lubricant Refining

Synthetic base fluids

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