Abstract
The Arctic development is accompanied by different high risks which basically arise due to natural and technogenic factors. The changes in the Arctic cryosphere are commonly considered the most serious ones by the international scientific community. In our study we regard the changes in Arctic cryosphere as natural risks. Due to the fact that complex ice conditions, on the one hand, present the serious obstacle to Arctic resources development and, on the other hand, serve as indicator of alarming global climate change, the current research proposes the risk analysis based on the analytical model, with the risks being classified by their level of impact.
Highlights
High conversion cracking of kerosene-diesel fractions occurs in more severe conditions: at temperature of 500510°C, pressure - 500 atm
During this process conducted with recycling of intermediate fractions, 50 per cent of cracking gasoline is produced
This type of cracking is gradually losing its relevance, as kerosene and diesel fractions of straight distillation find their direct applicability in a jet and diesel fuel
Summary
High conversion cracking of kerosene-diesel fractions occurs in more severe conditions: at temperature of 500510°C, pressure - 500 atm. High conversion cracking of light feedstock (thermal reforming) is carried out in more severe conditions (at temperature of 520-540°C, pressure 60-70 atm.) The raw materials are low-octane gasoline and naphtha of straight distillation. The specific geographical and climatic conditions of the Arctic present a challenge to economic activity in the region.
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