Diesel blending

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...

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...

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...

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...

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...

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...

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...

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...

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...

Equipment used for purification (regeneration) of diesel fuel.

Primary specifications of diesel fuel

Diesel fuel is a petrochemical product, resulting from oil distillation. Mixing of hydrotreated and straight run fractions in certain proportions (compounding) defines the grade of the fuel. Usually the mix is made of straight run and primary distillation diesel fuel, obtained by catalytic cracking. The following fuel types can be produced:

• Summer diesel  – for...

Diesel fuel is a petrochemical product resulting from distilling of oil. The grade of diesel fuel depends on the composition and proportions of the blend. Summer, winter and arctic diesel fuels are produced from oil; these differ in temperature range, content of paraffin and price.

Each type of diesel fuel must contain a certain quantity of sulfur and sulfuric compounds. If the quantities are above the...