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Clarification of project details
DiBurДата: Monday, 22.01.2018, 15:36 | Сообщение # 1
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PROJECT SUMMARY.
OVERVIEW INFORMATION NOTE .


"Formula" of the Project: "Production of pure propylene from waste products of refining petroleum products and natural gas instead of burning these wastes in flames polluting the environment."


Propylene (propene) CH2=CH-CH3 - an unsaturated hydrocarbon of a series of ethylene, a combustible gas, is an isogen of propane. The danger class is the fourth.

Most of the production capacity for propylene is concentrated in Europe, North America and Asia. Currently, over 50 million tons of polymer and chemical grade propylene (Polymer Grade (PG) / Chemical Grade (CG)) are produced globally over the year. Most of the release of propylene of these varieties is accounted for by pyrolysis units, where propylene is a byproduct of ethylene production. Installations of thermal cracking produce more than 60% of such propylene. Oil-processing FCC-enterprises (fluid catalytic cracking) are produced 34%. Half of these propylene capacities are integrated with petrochemical plants where propylene alkylation occurs or LPG (Liquified Petroleum Gas) and propane is blended.

As part of this project, propylene is the main target product.

The technology of propylene production, used in this project, is based on the process of complete utilization of natural flare gas. At the moment, flare gas is simply burned, which causes great environmental damage. In this regard, the implementation of the project will have a positive impact on the overall environmental situation in the region.


Propylene is used in the manufacture of:

• propylene oxide;
• Acetone;
• Isopropyl alcohol;
• synthesis of aldehydes;
• Acrylic acid;
• Acrylonitrile;
• polypropylene;
• plastics;
• rubber;
• detergents;
• Solvents;
• Motor fuel


World production of propylene over 65 million tons per year.
The cost of world production of propylene is over 25 billion US dollars per year.
According to experts' forecasts, it is expected that in the next five years demand will grow by more than 4.5-5.0% per year.
The growth in demand in Asia will be even higher, amounting to almost 6% per year.

Propylene from naphtha crackers (and FCC plants) is limited in quantity and expensive due to this, the use of natural gas-methanol-MTP (Methanol-to-Propylene Algorithm) synthesis technology is very competitive.
The production complex is based on the technology for producing propylene from natural gas through methanol (Methanol-to-Propylene (MTP).) The propylene produced can be used as a feedstock for various petrochemical processes.
MTP technology is fully tested. All stages of the process are fully tested. The resulting product is completely suitable for polymer synthesis.


The advantages of this technology are:

• Maximized propylene yield
• Possible production of ethylene for the production of copolymer
• Valuable by-products (Petrol, etc.)
• Small risk of production losses (sum of products)
• Special branded catalyst based on zeolite
• Fixed bed reactors (simple construction, easy scaling)
• Low coking of the catalyst
• Regeneration of the catalyst in situ at a temperature close to the reaction temperature
• Proven process elements.
 
DiBurДата: Monday, 22.01.2018, 15:39 | Сообщение # 2
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OVERVIEW INFORMATION NOTE .

Combustion of APG (Associated Petroleum Gas) on flares leads to emissions of millions of tons of pollutants into the atmosphere. As a result of flaring of associated gas in our country, on average, one tonne of oil produced accounts for about 8 kg of emissions of harmful substances, which are localized primarily in production regions. When burning APG, soot, nitrogen oxides, carbon monoxide, 3,4-benzpyrene, "slipped hydrocarbons", benzene, phosgene, toluene, heavy metals (mercury, arsenic, chromium), sulfurous anhydride and others form. It is also important that when APG is burned, greenhouse gases are formed that affect the climate of the planet (see theme "Greenhouse gases and climate change").

The thermal pollution from flaring of associated petroleum gas is also great, which is felt at a distance of up to 5 km from the flare unit and affects the meteorological and climatic conditions. Pollutants, after entering the atmosphere, are carried by the air flow in a gaseous, liquid and solid (aerosol) state. One of the main sources of air pollution in the regions in which the oil industry is developed and developed is the flaring of APG in flare plants.  

According to some estimates, the total area of disturbed soils from the impact of burning flares is about 100 thousand hectares. Near the flares, as a result of exposure to high temperatures in a radius of 20-200 m, there is an almost complete burning of the organic matter of the humus-accumulative horizons, the structure and granulometric composition of the soils is changing. In the case of burning or unburned (drip) oil in the flare emissions, the top layers of the soil are bituminized.
Chemical degradation caused by the entry into the soil of various compounds is manifested in the violation of geochemical balance, including carbon-nitrogen, in the change in the migration capacity of many macro- and microelements, in the inclusion of many toxic compounds in man-made flows.
As far as the distance from the torch, the degree of transformation of the soil from the thermal effect decreases.

If the halo of contamination of soils by chemical compounds as a result of burning associated gas can be determined fairly accurately, then the identification of the source of water pollution is problematic.
This is due, first, to a multitude of sources of potential contamination of surface and groundwater in the development of the oil field, and secondly, the dynamism of the processes.
Thus, from the moment hydrocarbons enter the aqueous medium, their evaporation, dissolution and other processes begin. It was also found that mineral salts dissolved in water can play the role of a catalyst for the oxidation process.
The use of flare gas as a source product can significantly improve the ecological situation in the region.

Within the framework of project preparation the following works were carried out:

1. An agreement was concluded with PJSC «Gazprom» on the connection of the enterprise to the network of gas pipelines for the implementation of constant supplies of flare gas.
2. An agreement was reached to acquire a land plot for the location of an enterprise in the Orenburg Region with an area of 12.59 hectares, which borders on the land plot on which the gas processing plant of «Gazprom dobycha Orenburg», PJSC «Gazprom», is located.


TYPE AND QUALITY OF PRODUCTS RECEIVED.


Propylene (grade for polymers)
Purity> 99.60% by weight
Ethylene (grade for polymers)
Petrol
Properties:
• Density at 15 ° C 740 - 790 kg / m3
• Reed vapor pressure at 37 ° C 0.45 - 0.70 bar
• Octane number according to the research method 90 - 95 RON.
 
 
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