Diesel blending

  • Diesel dispersion is the most demanded light oil products today.  This fuel is intended for high-speed diesel and gas-turbine engines. Conditions of blend creation and fuel ignition in diesels differ from petrol engines…
  • Diesel economy is the benefit for the future. Every year the world market consumes million tons of diesel fuel. Diesel fuel is especially popular in Western Europe – after filling with qualitative diesel fuel, the diesel engine is really capable to operate more time without overhaul, than the petrol engine… 
  • Emissions reduction with Diesel blending. Quality of fuel also is changed. The modern diesel blending has various additives and the biodiesel, thereby raising technical properties of the engine and reducing of emissions in the atmosphere…

Hydrocarbon Content of Diesel Fuel and Susceptibility to Additives

To make diesel fuel with high performance and optimal hydrocarbon content, modern methods of component content measurement are required.

It seems impossible to achieve without using additives. Additive efficiency depends to a large extent on the hydrocarbon composition of diesel. Additives for diesel fuel are mostly selected by trial and error. This stage is one of the most problematic for fuel producers. The main difficulty is combining...


Catalytic Deparaffinization and Isodewaxing in Diesel Fuel Production

Diesel Fuel Production. Catalytic deparaffinization is increasingly used in oil refining due to its efficiency and technical simplicity. Experience shows that catalytic deparaffinization can be successfully integrated with deep hydrodesulfurization.

Let us briefly look at systems used for such processes. In 2003, hydrodewaxing equipment was first used. The equipment included a sulfur production section. The raw material for the process is a high paraffin content straight run...


Production of Diesel Fuel Blends

Diesel Fuel Blends. Modern oil refining performs several important functions, among which improvement of the low temperature performance of diesel fuel performance and increased depth of hydrofining.

Until recently, the production of fuel with good low temperature performance was done by either reducing the end of fuel boiling from 360ºС to 340ºС (330ºС for arctic fuel), or by dilution with kerosene. In both cases, the economic viability...


Diesel Fuel Cetane Number

Until recently, the phrase “diesel fuel for cars” could bring a smile to the faces of experienced drivers.  This is not surprising, because this oil was used mainly to fuel trucks and large special equipment.  But due to the significant progress in refining processes and engine manufacturing it has become possible to use diesel fuel in cars.

The issue which has always worried each driver is the...


Production of winter diesel fuel

Most frequently used diesel fuel production process includes several steps: treatment in distillation columns, cracking and compounding process.

Processing in distillation columns is the first step which is necessary for diesel fuel production.  Oil is heated at constant pressure up to the temperature of 180-360ºC.  This makes it possible to divide “black gold” into separate fractions.  The finished fuel outlet after processing in distillation columns is relatively...


Is It Possible to Add Oil to Diesel Fuel?

Rough running of an engine can be caused by different reasons.  The first one is injection timing control disturbance.  The second one is incorrect operation of the fuel equipment.  In both cases it is advisable to visit a service station and have the car examined by specialists.

Another possible reason of rough running is refueling with low-cetane fuel.  This parameter characterizes the ability of diesel fuel to...


How to Extend Service Life of a Diesel Engine?

The history of a diesel engine dates back to the previous century, when Rudolf Diesel proposed a fundamentally new design that converts fuel combustion energy into mechanical energy.  After many years, diesel engine has not lost its relevance and began to enjoy increasing popularity.  The reasons are obvious: the fuel for a diesel engine is relatively cheap and it is more environmentally friendly.

Moreover, modern diesel engines...


Production of Diesel Fuel

Diesel fuel is produced in refineries using special technological processes: primary and secondary processing of oil, as well as compounding (blending).

Primary processing is required to separate oil into individual fractions that have different boiling points.

Technically, this process is performed in special distillation columns.  One of the results of primary distillation are diesel fractions that are then used in diesel fuel production.

Secondary distillation...


Additives for Diesel Fuels

Good performance of diesel engines requires high quality fuels.  But in practice, it is not so simple to find it.  The purchased fuel may be inadequate in terms of cetane number, may be contaminated and unadapted for use at different periods of the year.  In the case of use of low-quality diesel fuel, the condition of engine can deteriorate, which may lead to its failure over time.

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Diesel Fuel: How to Determine Its Cetane Number?

When selecting fuel for your car you should in the first place pay attention to its quality.  Perhaps the most significant of these indicators is its cetane number.  This parameter characterizes the ability of diesel fuels to ignite. In fact, it is the time required for combustion initiation from the moment of fuel injection into a cylinder.  The higher the cetane number, the smaller the time interval, and...


Obtaining Diesel Fuel

Large refineries are usually involved in obtaining diesel fuel in production quantities.  In general, the manufacturing process of this product can be divided into several stages:

  • primary processing;
  • secondary processing of oil;
  • compounding.

Let us consider each of these stages individually.  Primary processing (direct distillation) means separation of oil into fractions according to their boiling point.  Technically, this process is carried out in rectification...


Economizing Diesel Fuel

World reserves of oil decrease over time, which makes the issue of used oil economy quite a pressing challenge.  When considering the process of diesel fuel consumption, we should note that the problem of its saving must be addressed at three levels: at state level, at major consumers’ level and ordinary consumers’ level.

Government builds up a legal framework of mechanisms for handling diesel fuels.  It is...


August 30, 2016

Blending of Diesel Fuel With Vegetable Additives

Every year the TV and other mass-media warn us about the global warming, holes in the ozone layer and other ecological problems. Obviously, this is an attempt to attract public attention and start active countermeasures.

Biodiesel and bioethanol as panacea?

Large-scale implementation of the so-called alternative fuels is offered as one component of a package of measures. As envisioned by ecologists, they can reduce the amount...


The magic cetane number

Cetane number is one of the main parameters of diesel fuel, which indicates its combustibility. In the physical system, this number indicates the time it takes from the moment of injection into a cylinder to the beginning of fuel ignition. The higher the cetane number, the less the delay of mixture ignition. The scale of this parameter is 0 to 100. According to European standards, 51 is the minimum for...


November 3, 2014

BioDiesel Blending

Rates of use of biological raw materials in a fuel sector are achieved by fast turns. Leading positions in production of bioethanol, absolutely are belonged to Brazil and the USA, development of BioDiesel blend fuel solid grows in the different European Union countries.

What is the biofuel? Biofuel — this fuel doesn’t possess a benzol smell and is made from oils as raw materials for which the plants improving a structural...


April 17, 2014

A diesel fuel producing fungus found...

There is nothing surprising about this find, since microscopic organisms, which synthesize certain hydrocarbons, had been found before. The special thing about this fungus is that it makes 55 types of hydrocarbons. It was located inside wood fibers of Eucryphia cordifolia (a tree from northern Patagonia) and was named Gliocladium roseum. According to Dr. Gary Strobel (one of the authors of the research), no one has...


Diesel blending

Additive treatment and salt removal

HFO is a very chemically complex mix of high molecular organic, heteroorganic and metal-organic compounds. Structurally, HFO is a multi phase dispersed system. The dispersed phase particles include paraffin hydrocarbons, carbenes and carboids, solid mineral particles, water globules, gas bubbles etc. Settling of dispersed particles and formation of solid sediment complicates all stages of transportation, storage and burning of HFO. Carboids and minerals are abrasive to pumps, valves and...


Fuel additives. To add or not to add?

If high quality winter diesel is in short supply, the pour point depressants and anti-gel additives can indeed simplify operation of diesel vehicles in winter. However, things are never that simple. First of all, any additive, be it anti-gel or depressant, is a preventive measure and has no effect on the fuel post-factum, when the contents of the fuel tank has already separated, or worse, became...


Diesel alchemy

Antigel or depressant?

To make summer diesel fuel suitable for the cold season, it is necessary to find effective ways to influence paraffin crystals, which form in the fuel with temperature drop. The so-called pour point depressants partially handle that problem: without influencing the total amount of paraffins in the diesel, the depressants modify and soften the precipitating crystals, which allows the fuel to maintain adequate...


April 17, 2014

SUMMER FUEL TO WINTER FUEL without psychic powers: is it possible?

The subject of this article is neither industrial production of the valuable winter fuel in USB type blending and compounding systems, not a new cheat method. Simply imagine a truck driver who still has summer diesel when cold weather hits. Of course, drivers usually have some way to warm the fuel, such as torches, heaters etc, but it still requires a lot of effort. Just how...


обновлено: February 27, 2017 автором: dannik