RESEARCHING OIL CAPACITY OF MOSS FUSCUM PEAT TO THE COMMERCIAL OIL AND STABLE GAS CONDENSATE
Research article
Чухарева Н.В.
к.х.н., доцент, кафедра транспортировки и хранения нефти и газа, Национальный исследовательский Томский политехнический университет;
Рожкова Д.С.
студент, 4 курс, Национальный исследовательский Томский политехнический университет;
Хадкевич И.А.
студент, 4 курс, Национальный исследовательский Томский политехнический университет
RESEARCHING OIL CAPACITY OF MOSS FUSCUM PEAT TO THE COMMERCIAL OIL AND STABLE GAS CONDENSATE Abstract The articles talks about influence of fractional composition of moss fuscum peat on its oil capacity . The technique for determining oil capacity of peat are discribed. The experiments were carried out for hydrocarbons with different density (ρ =880 kg/m3 and ρ =770 kg/m3. Key words: oil capacity (нефтеемкость), moss fuscum peat (верховой фускум торф), fraction (фракция). At present the region of the Russian Federation characterized by having significant peat deposits start facing the problem of their development or water flooding. Primarily, it is connected with the increasing of incidence of peat autogenous ignition. Complex processing of peat is conducted successfully in many countries. Previously, techniques of peat deposit development and methods of obtaining valuable products of the economy were implemented in our country too. Therefore, the Russian Federation has a considerable experience of work with such unique natural raw materials, which will be put into a new Complex Program of Rational environmental management. One of the directions to realize the above mentioned Program can be getting the sorbents based on peat for oil spill and oil products removing. Therefore, the research aimed on studying sorbent properties of peats from different deposits is an important task. The goal: studying the sorbent capacity of peat. The object of studying: the moss fuscum peat taken at “Temnoye” deposit. Research object features are given in Table 1 Table 1. Features of studying object.Deposit | Type, kind of peat | Rate of peat decay, % | Code | Technical analysis, % | Elemental content, per % del | ||||
Analitic humidity | Ash-content per dry fuel | Volatile content per dry fuel | C | H | O+N+S | ||||
Temnoye | highbog, fuscum | 20 | 933-2 | 7,90 | 2,10 | 76,00 | 49,19 | 5,10 | 45,71 |
Fraction № of moss peat | Fraction, mm | Analytic humidity, % | Ash-content per dry-fuel, % |
1 | 0,25…0,5 | 7,4 | 5,0 |
2 | 0,5…1 | 8,0 | 4,5 |
3 | 1…2 | 8,5 | 4,6 |
4 | 2…3 | 9,2 | 4,6 |
5 | 3…4 | 11,4 | 5,0 |
Code of hydrocarbons | Deposit | Some parameters of hydrocarbon quality GOST 51858-2002 | |||||
Density at 20 0C, kg/m3 | Mass content, % | Mass content of chloride salts, mg/dm3 | Mass content of sulfur, % | Fractional output (%) at 200 0C | Saturated vapor pressure, kPa | ||
1 | Vankorskoye (Krasnoyarsk region) | 880,0 | 0,03 | 12,0 | 0,15 | 14,0 | 28,5 |
2 | Myldzhinskoe gas-condensate (Tomsk region) | 700,0 | 0,03 | 0,79 | 0,01 | 93,0 | 59,0 |
- We found the mass of hydrocarbon which could be kept by grating trap. To do this, we weighed it (m1) using the scales of 2nd class of accuracy. 200 ml of oil or stable gas condensate was poured into a glass bowl. Grating trap was put into sorbtive for 10 minutes. The bowl with the grating trap was covered with watch glass. Then the grating trap was taken out of the bowl and put into the glass and let hydrocarbon flow for 10 minutes. The glass was covered too. After 10 minutes we weighed the mass of grating trap with hydrocarbon (m2). The difference in masses (between m1 and m2) is the mass of hydrocarbon kept by grating trap.
- We determined the oil capacity of peat using the following technique. 3 g of one fraction of peat sample was put in the grating trap in an even layer. Then the grating trap was put into in hydrocarbon and the experiment was conducted according to abovementioned one. The hydrocarbon mass kept by the grating trap was found by:
- The obtained oil capacity Ne was counted per dry peat by the following:
Type of peat | Fraction | Code of hydrocarbons | |
1 | 2 | ||
Nе(Nес), 1 g of hydrocarbon/1 f of peat | |||
Moss | 1 | 1,98 (2,15) 2,08 (2,26) 2,59 (2,82) 2,19 (2,42) 1,25 (1,40) | 1,87 (2,02) |
2 | 1,78 (1,93) | ||
3 | 1,71 (1,86) | ||
4 | 1,46 (1,61) | ||
5 | 1,13 (1,27) |
- Moss fuscum peat fractions having the sizes 1 to 2 mm and 2 to 3 mm sorbite the commercial oil (ρ=880 kg/m3) better.
- The increasing of peat fraction size leads to the decreasing of oil capacity in stable gas condensate.
- To increase oil capacity of peat, it should be dried to change its hydropath.
References
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