Antiseptic oil for wood impregnation (options)

 

(57) Abstract:

The invention can be used for impregnation of wood, in particular for impregnation of wood sleepers and rails. Antiseptic for wood impregnation contains fractions of sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480°C, mixed with fractions of heavy oil thermal cracking process having a high content of aromatic hydrocarbons and wikipedie within 180-430°C, further comprises fractions of light gas oil catalytic cracking, wikipaedia within 200-340°C, and cracking residue with temperature N. To. 250-280°With as a depressant. The ratio of the components, wikipaedia in the temperature range, allows the components are mixed at a temperature of 50-60°With obtaining homogeneous, nerastraivaisya mixture and expands the range of oily antiseptic. 4 N. p. F.-ly.

The invention relates to compositions of antiseptics oil for impregnation of wood and can be used for impregnation of sleepers and rails.

Known antiseptic coal origin coal sleeper impregnation oil designed for impregnation of wooden sleepers, slavistik fractions - first anthracene fraction (280-360°C) and the absorption oil (235-300°C).

The disadvantages of antiseptic coal origin include the following:

1) coal sleeper impregnation oil according to GOST 2770 may contain up to 0.3 wt.% substances insoluble in toluene (carbenes and carboids), and 1.5% of water, which negatively affects the process of impregnation of wood;

2) on the toxicity of coal sleeper impregnation oil refers to the 2nd class (highly hazardous), which creates the danger, from the point of view of the sanitary and environmental conditions in the production sleeper impregnation plants;

3) carcinogenic risk (assessment on the content of 3,4-benzo(a)pyrene) coal sleeper impregnation oil 125 times more dangerous than antiseptic on the basis of oil, gas oil fractions (the journal “Chemistry and technology of fuels and oils”, 2002-no 2, -n-52-53 authors L. C. Dolmatov, I. E. Katukov, G. S. Sarkowsky).

Coal sleeper impregnation oil is prepared by mixing and co-crystallization of the 1st anthracene fraction and absorption oil with subsequent separation of the crystals in the centrifuge.

2.5 m3adsorption is kristallov is 15-20% in the mixture (Shchelkov SC Directory of koksohimiko. M, metallurgy, T. 3, 1966).

The closest technical solution to the claimed invention is “Antiseptic oil for wood impregnation” (patent RF №2187429, CL 27 To 3/50, 20.08.2002, containing fraction of heavy catalytic cracking gas oil, wikipaedia within 140-500°C, and the balance of lightweight thermal cracking, wikipedi within 380-540°C, as an organic depressor.

The disadvantages of the known antiseptic oil for wood impregnation include:

1) heavy at the beginning of the boil (380°C) the balance of lightweight thermal cracking process that requires a high mixing temperature (80-90°C) fractions of heavy oil catalytic cracking (140-500°C) to obtain a homogeneous, nerastraivaisya mixture representing “antiseptic oil for wood impregnation”;

2) relatively easy at the beginning of the boil (140°C), heavy catalytic cracking gas oil, which negatively affects the level of the flash point of the mixture (antiseptic oil for impregnation of wood);

3) limited resource base fractions of heavy oil catalytic cracking (140-500°C) and rest easy heat crevatin oil for impregnation of wood-based paraffin oil, responsible for key quality indicators requirements for protective sleeper impregnation material (GOST 20022.5-93 “Protection of wood. Autoclave impregnation oily protective equipment”) due to selection of the optimum ratio of components, wikipaedia in the temperature range, allowing the components are mixed at temperatures of 50-60°With obtaining homogeneous, nerastraivaisya mixture (antiseptic oil for impregnation of wood).

1. The invention consists in that the antiseptic oil to protect the wood on the basis of fractions of sulfur heavy catalytic cracking gas oil (paraffin oil), wikipaedia within calculated 240-480°C, further comprises fractions of heavy oil thermal cracking process having a high content of aromatic hydrocarbons and wikipaedia within 180-430°C (1st year option) in the following ratio, wt.%:

Fraction of sulfur

heavy gas oil

catalytic cracking,

wikipaedia within calculated 240-480°With 85 BC-50

The heavy gas oil fraction

thermal cracking,

wikipaedia within 180-430°With 50-15

2. Somestage heavy catalytic cracking gas oil (paraffin oil), wikipaedia within calculated 240-480°C, further comprises fractions of heavy oil thermal cracking process having a high content of aromatic hydrocarbons, wikipaedia within 180-430°C, and cracking residue with an initial boiling point N. To. 250-280°C to 470°With boils 50% (1st winter version) in the following ratio, wt.%:

Fraction of sulfur heavy oil

catalytic cracking,

wikipaedia within calculated 240-480°From 49.5-82,5

The heavy gas oil fraction

thermal cracking,

wikipaedia within 180-430°From 12.5-49,5

Cracking residue

with temperatures N. To. 250-280°C

50% boils up to 470°With 1-5

3. The invention consists also in the fact that the antiseptic oil to protect the wood on the basis of fractions of sulfur heavy catalytic cracking gas oil (paraffin oil), wikipaedia within calculated 240-480°C, further comprises fractions of heavy oil thermal cracking process having a high content of aromatic hydrocarbons and wikipaedia within 180-430°C, and fractions of light gas oil catalytic cracking, wikipaedia within 200-340°C (2nd Le">catalytic cracking gas oil,

wikipaedia within calculated 240-480°With 50-65

The heavy gas oil fraction

thermal cracking,

wikipaedia within 180-430°With 5-25

Fractions of light gas oil

catalytic cracking,

wikipaedia within 200-340°With 10-45

4. The invention consists also in the fact that the antiseptic oil to protect the wood on the basis of fractions of sulfur heavy catalytic cracking gas oil (paraffin oil), wikipaedia within calculated 240-480°C, further comprises fractions of heavy oil thermal cracking process having a high content of aromatic hydrocarbons and wikipaedia within 180-430°C, the fractions of light gas oil catalytic cracking, wikipaedia within 200-340°C, and as depressor - cracking residue, wikipedi within N.To. 250-280°C to 470°With boils 50% (2nd winter version) in the following ratio, wt.%:

Fraction of sulfur heavy oil

catalytic cracking,

wikipaedia within calculated 240-480°With 49-62

The heavy gas oil fraction

thermal cracking,

wikipaedia is within 200-340°With 9-46

Cracking residue with temperature N. To.

250-280°With 50% boils up to 470°With 1-5

These fractions and the cracking residue, depressant additive was prepared as follows.

Sulphur heavy and light gas oil catalytic cracking are catalytic cracking by thermal conversion in the reactor sulfur vacuum gas oil fraction 350-500°C) paraffin oil with subsequent separation of the reaction products in the fractionation column for gas, petrol fraction (N. To. 200°C), the fraction of light gas oil (200-340°C) and the fraction of heavy oil catalytic cracking (calculated 240-480°C) [Hajiyev S. N. The cracking of oil fractions over zeolite catalysts. M.: Chemistry, 1982].

Heavy oil thermal cracking and cracking residue obtained by thermal cracking (thermal cracking) of the mixture of distillate feedstock (heavy catalytic cracking gas oil, extracts oil production, vacuum gasoil, dark faction).

The reaction products of thermal cracking share in the fractionation column gas thermal cracking gasoline fraction (N. To. 180°C), heavy gas oil heat some of the oil and gas processing. Publishing House “Gil”. Ufa, -2002,].

We offer oil antiseptic for wood impregnation was prepared as follows.

Option 1.

In a mixing tee transport pipeline in a predetermined ratio pumped fraction of sulfur heavy oil catalytic cracking (FR. calculated 240-480°C) and fraction of heavy oil thermal cracking (FR. 180-430°C) having a high content of aromatic hydrocarbons, where they are thoroughly mixed, form a homogeneous oily product antiseptic oil for impregnation of wood (year).

Option 2.

In a mixing tee transport pipeline in a predetermined ratio pumped heavy oil thermal cracking and cracking residue, the mixture should occur under certain conditions and for a time, ensuring complete dissolution of cracking-residue (depressaria) in heavy gas oil thermal cracking.

A homogeneous mixture of heavy oil thermal cracking with the cracking residue serves tee mixture transport pipe, mixed in a predetermined ratio with sulphur heavy oil catalytic cracking with getting CLASS="ptx2">Option 3.

In a mixing tee transport pipeline pumped fraction of sulfur heavy catalytic cracking gas oil and light gas oil catalytic cracking in a predetermined ratio, where they are thoroughly mixed to form a homogeneous oily product, which is a two-component mixture. This two-component mixture is fed to the mixing tee transport pipeline, where it is mixed with heavy oil thermal cracking in a predetermined ratio. As a result of mixing two-component mixture of gas oil for catalytic cracking of heavy oil thermal cracking receive the product antiseptic oil for wood impregnation (summer version).

Option 4.

In a mixing tee transportation pipeline installation of thermal cracking in a predetermined ratio pumped heavy oil thermal cracking and cracking residue, mixing occurs under certain conditions and for a time, ensuring complete dissolution of cracking-residue (depressaria) in heavy gas oil thermal cracking).

Tee mixture transport pipe (catalytic cracking) zaychenkova cracking for a homogeneous two-component mixture.

Next, in the mixing tee transport pipeline pump in a predetermined ratio mixture of heavy oil thermal cracking cracking-residue and the mixture of sulfur heavy catalytic cracking gas oil with a light catalytic cracking gas oil.

After mixing the four components are trademark blend of antiseptic oil for impregnation of wood (winter version).

Example 1. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) - 85% - mix with fractions of heavy oil thermal cracking, wikipaedia within 180-430°C, 15 wt.%, with a high content of aromatic hydrocarbons. Get antiseptic oil for impregnation of wood with the following quality indicators:

Pour point, °To +18

Flash

in an open crucible, °With 130

Kinematic viscosity

at 80°C, mm2/4,32

Density at 20°C, kg/m3915

Example 2. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) - 50 wt. - % mixed with fractions of heavy oil thermal cracking, wikipaedia within 180-430° the impregnation of wood with the following quality indicators:

Pour point, °To +8

Flash

an open crucible, °With 120

Kinematic viscosity

at 80°C, mm2/from 3.25

Density at 20°C, kg/m3921

Example 3. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) of 82.5 wt.% - mix with fractions of heavy oil thermal cracking, wikipaedia within 180-430°C, with a high content of aromatic hydrocarbons, 12.5 wt.%, mixed with the cracking residue with N.To. 250-280°C (depressor) - 5 wt.%. Get antiseptic oil for impregnation of wood with the following quality indicators:

Pour point, °-6

Flash

in an open crucible, °With 118

Kinematic viscosity

at 80°C, mm2/from 4.25

Density at 20°C, kg/m3914

Example 4. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) a 49.5 wt.% - mix with fractions of heavy oil thermal cracking, wikipaedia within 180-430°C, a 49.5 wt.%, with a high content of aromatic hydrocarbons, mixed with the cracking residue with N.To. 250-for solidification, °C -16

Flash

in an open crucible, °115

Kinematic viscosity

at 80°C, mm2/2,89

Density at 20°C, kg/m3924

Example 5. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) is 47.5 wt.% - mix with fractions of heavy oil thermal cracking, wikipaedia within 180-340°C, 47.5 per cent, with a high content of aromatic hydrocarbons, mixed with the cracking residue with N.To. 250-280°C (depressor) - 5.0 wt.%. Get antiseptic with the following quality indicators:

Pour point, °C -24

Flash

in an open crucible, °114

Kinematic viscosity

at 80°C, mm2/2,91

Density at 20°C, kg/m3926

Example 6. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) - 50 wt.% - mix with fractions of light gas oil catalytic cracking 200-340°, 45 wt.%, and with a heavy oil thermal cracking 180-430°C, 5 wt.%, with a high content of aromatic hydrocarbons. Get antiseptic oil for impregnation of wood with the following SS="ptx2">in an open crucible, °With 120

Kinematic viscosity

at 80°C, mm2/3,44

Density at 20°C, kg/m3918

Example 7. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) and 65 wt.% - mix with fractions of light gas oil catalytic cracking 200-340°C, 10 wt.%, and with a heavy oil thermal cracking 180-430°C, 25 wt.%, with a high content of aromatic hydrocarbons. Get antiseptic oil for impregnation of wood with the following quality indicators:

Pour point, °To +8

Flash

in an open crucible, °126

Kinematic viscosity

at 80°C, mm2/s 4,10

Density at 20°C, kg/m3913

Example 8. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) - 49 wt.% - mix with fractions of light gas oil catalytic cracking 200-340°, 45 wt.%, with fractions of heavy oil thermal cracking 180-430°C, 5 wt.%, with a high content of aromatic hydrocarbons, and the cracking residue with N.To. 250-280°C (depressor) - 1 wt.%. Get antiseptic oil with the following ASS="ptx2">in an open crucible, °122

Kinematic viscosity

at 80°C, mm2/2,89

Density at 20°C, kg/m3913,6

Example 9. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) - 50 wt.% - mix with fractions of light gas oil catalytic cracking 200-340°C, 41 wt.%, with fractions of heavy oil thermal cracking 180-430°C, 4 wt.%, with a high content of aromatic hydrocarbons, and the cracking residue with N.To. 250-290°C (depressor) - 5 wt.%Get antiseptic with the following quality indicators:

Pour point, °C -20

Flash

in an open crucible, °With 112

Kinematic viscosity

at 80°C, mm2/2,92

Density at 20°C, kg/m3914,2

Example 10. Fraction of sulfur heavy oil catalytic cracking (calculated 240-480°C) - 62 wt.% - mix with fractions of light gas oil catalytic cracking 200-340°C, 10 wt.%, with fractions of heavy oil thermal cracking 180-430°C, 23 wt.%, with a high content of aromatic hydrocarbons, and the cracking residue with N.To. 250-280°C - 5 wt.% (depressor). Get LASS="ptx2">Flash

in an open crucible, °With 112

Kinematic viscosity

at 80°C, mm2/from 2.42

Density at 20°C, kg/m3914,4

From the above examples 1-10, it follows that the proposed composition of the antiseptic oil for impregnation of wood derived from sulfur heavy catalytic cracking gas oil, light catalytic cracking gas oil, heavy gas oil thermal cracking process having a high content of aromatic hydrocarbons and cracking-residue (depressaria) obtained in the processing of sulfur, paraffin oils, allows to produce antiseptic oil for wood impregnation summer and winter types, depending on the composition of the antiseptic and the ratio of components in the mixture.

In all cases the resulting compositions oil antiseptic meet the requirements of GOST 20022.5-93 “Protection of wood. Autoclave impregnation oily protective equipment, and their production allows to expand the resource base upon receipt of antiseptics oil origin for impregnation of railway sleepers, using new formulations based on mixtures comprising components termometro cracking, with a high content of aromatic hydrocarbons and cracking residue) origin on the basis of sulfur waxy oils.

Obtained according to the invention antiseptic oil face during the impregnation of wooden sleepers in the following, for example, technology.

Sleepers of sound wood (pine) is placed in a vacuum autoclave, which create the air pressure of 0.3 MPa for 5 minutes, the Autoclave is filled derived antiseptic liquid at a temperature of 95°To create hydraulic pressure of 0.8 MPa and keep it for 60 minutes Then antiseptic liquid is removed from the autoclave, the autoclave generate a vacuum 0.085 MPa and keep it for 20 minutes

According to analysis provided the depth of saturation across the grain of the wood 8-13 mm absorption antiseptic 85-90 kg/m3wood.

1. Antiseptic oil for impregnation of wood-based fractions of sulfur heavy oil catalytic cracking, characterized in that it contains a fraction of the sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480° C, and further comprises a heavy gas oil fraction thermal racingone components, wt.%:

Fraction of sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480° With 50-85

Fraction of heavy oil thermal cracking, wikipaedia within 180-430° With 15-50

2. Antiseptic oil for impregnation of wood-based fractions of sulfur heavy oil catalytic cracking and cracking-residue, characterized in that it contains a fraction of the sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480° C, cracking residue with an initial boiling point 250-280° C and additionally contains fractions of heavy oil thermal cracking with a high content of aromatic hydrocarbons, wikipaedia within 180-430° C, in the following ratio, wt.%:

Fraction of sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480° From 49.5-82,5

Fraction of heavy oil thermal cracking, wikipaedia within 180-430° From 12.5-49,5

Cracking residue with temperature N. To. 250-280° C1,0-5,0

3. Antiseptic oil for impregnation of wood-based fractions of sulfur heavy oil catalytic cracking, characterized in that it contains fra is entrusted contains fractions of heavy oil thermal cracking with a high content of aromatic hydrocarbons, wikipaedia within 180-430° C,and fractions of light gas oil catalytic cracking, wikipaedia within 200-340° C, in the following ratio, wt.%:

Fraction of sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480° With 50-65

Fraction of heavy oil thermal cracking, wikipaedia within 180-430° With 5-25

Fractions of light gas oil catalytic cracking, wikipaedia within 200-340° With 10-45

4. Antiseptic oil for impregnation of wood-based fractions of sulfur heavy oil catalytic cracking and cracking-residue, characterized in that it contains a fraction of the sulfur heavy oil catalytic cracking, wikipaedia within calculated 240-480° C, cracking residue with an initial boiling point 250-280° C and additionally contains fractions of heavy oil thermal cracking with a high content of aromatic hydrocarbons, wikipaedia within 180-430° C, the fractions of light gas oil catalytic cracking, wikipaedia within 200-340° C, in the following ratio of components, wt.%:

Fraction of sulfur heavy catalytic gas oil

cracking, wikipaedia in Preah 180-430° WITH 4-24

Fractions of light gas oil catalytic cracking

wikipaedia within 200-340° With 9-46

Cracking residue with temperature

N. To. 250-280°1-5



 

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