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A New Additive for Diesel Fuel

A New Additive for Diesel Fuel 'TH E effects of sulphur in diesel fuel oil have been frequently pick up their supplies at foreign ports and referred to in our columns several times recently. have no check at all upon its sulphur content. Many operators of large and small automobile and Methods of Combating Sulphur. industrial oil engines have experienced a high degree There are three methods for reducing the ill effects of engine fouling due to the use of these fuels con­ of sulphur in fuel. taining a high proportion of sulphur. The use of (1) Obviously the best method, if it wore possible, such fuels is increasing since we have to draw con­ would be to remove the sulphur during refining. siderable supplies from the Middle East. Coastal Unfortunately, this is not a commercial proposition. shipping has been particularly affected since they (2) The use of a very highly detergent lubricating oil will reduce the effects by preventing deposit formation but the facts about this method have been expressed by C. B. Dicksee, Research Engineer to A.E.C. Ltd. in a letter to The Oil Engine (May 1949) which states as follows :— "My view is that oils containing an excessive proportion of additive cannot be considered as an answer to sulphur effects, because the cost of such oils is prohibitive and, failing other remedies for the evil, it is cheaper to replace the liners at more frequent intervals. Oils with moder­ ate amounts of additives are extremely valuable and represent a tremendous advance in lubrication technique. On the other hand, oils containing up t o 20 per cent of additives, such as are now talked of in the U.S.A. must be extremely costly and cannot be considered as commercial propositions, especially in view of their relatively limited useful life". (3) The remaining method is to employ additives- in the diesel fuel itself. This method has distinct possibilities and research carried out by Selocol Ltd., 24, Queens Mews, Queensway, London, W.2., has. provided valuable proof of the advantages to be gained by this method. Advantages of Fuel Additive. This company markets a multi-functional additive under the name of Selocol which provides three distinct advantages :— (a) When added to the fuel as it is pumped to the storage tanks, it is claimed that this additive prevents the formation of gum or sludge and thus prevents blocking of fuel line filters. (b) In passing through the plungers and other moving parts of the injector pumps it provides perfect lubrication thus reducing injector maintenance costs. (c) The most important quality claimed for this additive is its property of preventing the formation of lacquer and carbon deposits on cylinder heads, injector nozzles, piston ring grooves, piston lands etc. The additive also mixes with the lubricating oil providing resistance to oxidation and detergency. In this way, engine deposits are reduced whether they be formed from excessive fuel sulphur or from any other causes. Selocol is added to diesel fuel in the proportion of one gallon to 200 gallons of fuel. Upper Cylinder Oil and Lubricant Additive. Selocol Ltd. also manufacture additives for lubri- cating oils and for adding to petrol. Both these grades contain correct proportions of Acheson Colloidal Graphite. Work is preceding by Selocol in conjunction with Acheson Colloids to develop a method of incorporating colloidal graphite in a diesel fuel additive. Scientific LUBRICATION July, 1949 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

A New Additive for Diesel Fuel

Industrial Lubrication and Tribology , Volume 1 (5): 1 – May 1, 1949
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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0036-8792
DOI
10.1108/eb052008
Publisher site
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Abstract

'TH E effects of sulphur in diesel fuel oil have been frequently pick up their supplies at foreign ports and referred to in our columns several times recently. have no check at all upon its sulphur content. Many operators of large and small automobile and Methods of Combating Sulphur. industrial oil engines have experienced a high degree There are three methods for reducing the ill effects of engine fouling due to the use of these fuels con­ of sulphur in fuel. taining a high proportion of sulphur. The use of (1) Obviously the best method, if it wore possible, such fuels is increasing since we have to draw con­ would be to remove the sulphur during refining. siderable supplies from the Middle East. Coastal Unfortunately, this is not a commercial proposition. shipping has been particularly affected since they (2) The use of a very highly detergent lubricating oil will reduce the effects by preventing deposit formation but the facts about this method have been expressed by C. B. Dicksee, Research Engineer to A.E.C. Ltd. in a letter to The Oil Engine (May 1949) which states as follows :— "My view is that oils containing an excessive proportion of additive cannot be considered as an answer to sulphur effects, because the cost of such oils is prohibitive and, failing other remedies for the evil, it is cheaper to replace the liners at more frequent intervals. Oils with moder­ ate amounts of additives are extremely valuable and represent a tremendous advance in lubrication technique. On the other hand, oils containing up t o 20 per cent of additives, such as are now talked of in the U.S.A. must be extremely costly and cannot be considered as commercial propositions, especially in view of their relatively limited useful life". (3) The remaining method is to employ additives- in the diesel fuel itself. This method has distinct possibilities and research carried out by Selocol Ltd., 24, Queens Mews, Queensway, London, W.2., has. provided valuable proof of the advantages to be gained by this method. Advantages of Fuel Additive. This company markets a multi-functional additive under the name of Selocol which provides three distinct advantages :— (a) When added to the fuel as it is pumped to the storage tanks, it is claimed that this additive prevents the formation of gum or sludge and thus prevents blocking of fuel line filters. (b) In passing through the plungers and other moving parts of the injector pumps it provides perfect lubrication thus reducing injector maintenance costs. (c) The most important quality claimed for this additive is its property of preventing the formation of lacquer and carbon deposits on cylinder heads, injector nozzles, piston ring grooves, piston lands etc. The additive also mixes with the lubricating oil providing resistance to oxidation and detergency. In this way, engine deposits are reduced whether they be formed from excessive fuel sulphur or from any other causes. Selocol is added to diesel fuel in the proportion of one gallon to 200 gallons of fuel. Upper Cylinder Oil and Lubricant Additive. Selocol Ltd. also manufacture additives for lubri- cating oils and for adding to petrol. Both these grades contain correct proportions of Acheson Colloidal Graphite. Work is preceding by Selocol in conjunction with Acheson Colloids to develop a method of incorporating colloidal graphite in a diesel fuel additive. Scientific LUBRICATION July, 1949

Journal

Industrial Lubrication and Tribology – Emerald Publishing

Published: May 1, 1949

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