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A.Yu. Shabanov, Yu.V. Galyshev, A.B. Zaytsev, S.V. Butorov
14
Engineering Journal: Science and Innovation
# 11·2017
adversely affect the working process of the engine. Secondly, the cleaning
component of the package contributes to the removal of organic deposits
in the “cold” parts in the fuel system (fuel tank, fuel lines, metering com-
ponents of the fuel), accumulated during the previous operation of the en-
gine and violates the process of mixing. In addition, it should initiate “hot”
clean firing surfaces of the combustion chamber of the engine
The experience of numerous experimental studies conducted by the
authors of this article [7, 8] showed that there is a significant dependence
of the efficiency of the additives from the group composition of the base
fuel. However, this issue is almost completely ignored by the manufactur-
ers of additives; recommendations on the dosage of the package are com-
mon to all types of base gasolines.
The following are some of the results of experimental studies of the
effectiveness of multifunctional additives of domestic production with re-
spect to several different baseline gasoline group compositios, illustrating
the foregoing.
Tests were subject to four types of base gasolines of AI-92 with dif-
ferent contents of aromatic hydrocarbons and oxygen-containing compo-
nent. Physico-chemical characteristics of the base gasoline are summa-
rized in table 1.
Table 1
Physico-chemical characteristics of the base gasoline
The name of the parameter
Sample
No. 1
Sample
No. 2
Sample
No. 3
Sample
No. 4
Research Octane Number, ed.
92.6
92.1
92.7
93.1
Motor Octane Number, ed.
83.1
83.0
83.5
88.4
Fractional composition:
– % Evaporated @ 70° C, E70
– % Evaporated @ 100° C, E100
– % Evaporated @ 150° C, E150
– Final Boiling Point (FBP), °С
– Distillation Residue, % v/v
32.2
53.3
86.3
195
1.3
35.0
54.0
81.2
209
1.0
42.3
61.3
87.4
186
1.0
52.4
59.1
82.3
212
1.0
Benezene Content, % v/v
0.5
0.4
0.2
0.1
Sulphur Content, mg/kg
3.0
8.7
7.7
61.0
Vapour Pressure (DVPE), kPa
80.0
74.0
63.0
76.0
Oxygen Content, % m/m
0
0
2.14
11.3
Existent Gun Content, mg/100ml
0
1.0
0
5.0
Hydrocarbon Type Content, % v/v:
– Olefin Content
– Aromatics Content
2.6
34.9
0.4
33.0
4.2
25.9
2.1
16.3
Oxygenates Content, % v/v
– Methanol
–
–
–
16.9
– Tret-Butyl Alcohol
–
–
–
1.2
– Other Oxygenates (5 or more C atoms)
–
0.7
11.7
–