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Iran BITUMEN



Iran Bitumen

MGT PetrOil Company is a major producer, supplier and exporter of many petrochemical products in the Middle East which is located in Iran. MGT PetrOil Company has many years’ experiences in exporting and it is active in case of Bitumen supplying.

Iran holds the world's fourth-largest proved crude oil reserves and the world's second-largest natural gas reserves. Moreover, the world's top 10 oil producers and top 5 natural gas producers is belonging to Iran. The most important rout for exporting of oil from Iran and all Persian Gulf countries is the Strait of Hormuz, off the southeastern coast of Iran. Liquefied natural gas (LNG) volumes also flow through the Strait of Hormuz.

in 1963, (NPC) National Petrochemical Company was established to spearhead the development and policy-making for petrochemical industry in Iran. the oldest petrochemical industry in the Middle East is belong to Iran. proudly in ethylene production, Iran can be introduced as a second major producer after Turkey. During 1964-1977 Razi, Abadan, Pazargad, Ahwaz carbon black, Kharg, Farabi and Shiraz expansion projects were completed.

there are many evidences shows that Iranians have been using Bitumen since a dim and distant past and They used Bitumen for their famous stamps and vases, moreover they used to tar their boats and coffins.

 

What is Bitumen?

Bitumen is one of the material’s engineering that produced via crude oil distillation during petroleum refining and exist in many categories. Bitumen is dark viscous liquids or semi-solids that are non-volatile at ambient temperatures and soften gradually when heated. “Asphalt” is the most suitable way that used for a mixture of small stones, sand, filler and Bitumen (~5%), which is used as a road-paving material. Bitumen emissions are defined as the complex mixture of aerosols, vapors, and gases from heated Bitumen and products containing Bitumen. Usually “Bitumen fume is used in reference to total emissions, Bitumen fume comes from aerosolized fraction of total emissions (i.e. solid particulate matter, condensed vapor, and liquid Bitumen droplets). basically, “emissions of Bitumen is best choice for referring to whole content of Bitumen in air.

Bitumen in Different grade specifications, due to the physical properties, would be able to achieved for specific applications either directly via refining or by blending. For instance, the ordinary product is often referred to as “straight-run” Bitumen in addition, usually it is used in road-paving applications. as a result of blowing air through it at elevated temperatures to produce “oxidized” Bitumen, this basic product would be able to further processed, which is most useful products for using in roofing applications. As a result of using these two products most commonly in industry, it will have defined to four additional classes that are produced to achieve specific physical characteristics by production process modification.

Bitumen is completely different product compared with coal-derived products namely, coal tars or coal-tar pitches. While Bitumen is produced from petroleum, coal-tar products are obtained from the high temperature carbonization of bituminous coals (> 1000 °C) and are by-products of gas and coke production. Coal-tar products have much higher concentrations of polycyclic aromatic hydrocarbons (PAHs) compared with Bitumen, basically range of between three- to seven-ring size. In contrast, Bitumen is containing higher concentrations of paraffinic and naphthenic hydrocarbons and their derivatives, whose large size and viscosity result in limited solubility.


Distillation

straight reduction to grade via petroleum crude oil or a crude blend is The best refining process, which is used for producing Bitumen, that is using atmospheric and vacuum distillation. In the schematic, atmospheric distillation is used to physically separate light, lower boiling point, petrochemical and fuel fractions from the non-boiling component which is defined as atmospheric residuum.

To remove the last traces of the lighter fractions, and stopped molecules thermal transformation, the atmospheric residuum is showed into the unit of vacuum distillation. At decreased pressure it may divide to any remaining lighter fractions, as the boiling temperatures are lower and unwanted thermal cracking of the molecules is avoided.

The lighter fractions, like, vacuum Gas Oils, are removed at atmospheric equivalent temperatures of 345-400°C (650–750°F) and 370–450°C (700–850°F) leaving a high boiling point, high molecular weight hydrocarbon residuum. The atmospheric equivalent temperature to yield the vacuum residuum is normally increased up to 535°C (1000°F) and has a low volatility.

According to the specification grade requirements the vacuum residuum also would be able to used directly, further processed, or used as a blended Bitumen component. The non-distillable materials produced from distillation of atmospheric residuum under vacuum are defined by Asphalt (CAS# 8052-42-4) and Residues (petroleum) vacuum (CAS# 64741-56-6).

Iran Bitumen
Fig 1. Schematic diagram of the distillation process


Different Grades of Bitumen

Bitumen or bituminous binder is including different types:

Penetration Grade

Bitumen 80/100: The characteristics of this type shows that of S 90 grade of IS-73-1992. This is the softest of all types. This type is used for low volume roads in many projects.

Bitumen 60/70: it is harder than 80/100 and can withstand higher traffic loads.  

Bitumen 30/40: This is the hardest grade compared with the others and can withstand very heavy traffic loads.  

 
Bitumen Usages

Industrial Bitumen is a dark, petroleum residue modified by the oxidation process. Its consistency ranges from highly viscous to solid. Industrial Bitumen is a safe material which has multiple uses in industry and a wide range of applications and has Waterproofing properties.


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