SU937506A1 - Method for dehydrating petroleum - Google Patents

Description

The invention relates to methods for the destruction of petroleum emulsions and can be used in the dehydration and desalting of oil. Methods of oil dehydration are known by introducing non-ionic surfactants, for example oxyalkylated alkylphenols PZ, into demulsifying agents as demulsifiers. However, the complete dehydration of oil using these demulsifiers at a temperature of 50 ° C requires long sludge (8-15 hours). The closest to the proposed technical essence is the method of oil dehydration by introducing the p-cumylphenol demulsifier-polyoxyalkylene glycol ethers containing 10-18 oxyethylene groups 2. A disadvantage of the known method is the duration of the process. The purpose of the invention is to increase the degree of dehydration. The goal is achieved according to the method of oil dehydration by introducing a demulsifier-product of sequential addition of 8-15 mol of ethylene oxide and 15-22 mol of propylene oxide to 1 mol of phenolic resin from the production of phenol and acetone by decomposition of cumene hydroperoxide. Example 1. To 100 ml of natural oil emulsion of Devonian oil from the Karabash field, a demulsifier is added in the form of a 1% solution in aromatic hydrocarbons, which is a product of sequential addition of 8-15 mol of ethylene oxide and 15-22 mol of propylene oxide. The demulsifier is injected 393 at the rate of 60 g / l of oil and mixed with emulsion 10 memes at a speed of 60 rpm, then the treated oil is settled for 2 hours, the separated water is removed, and the content of oil products is determined and the residual water. The results are shown in Table. 1. EXAMPLE 2. An adduct of 8 mol of ethylene oxide and 22 mol of propylene oxide to a phenolic resin, Ki ii 4jiinjn; In this case, the demulsifier is introduced into the water-oil emulsion in the form of a 1% solution in a mixture of xylene and isopropyl alcohol. Dehydration is subjected to freshly selected emulsions of Devonian oils (Zelenogorsk area, well 11168, Lenigradskaya area, well about 176). The characteristics of the emulsions are given in Table 2. The results of the dehydration of the above results of ovification of the above oils are given in Table. 3

An adduct of 8.5 μsl of ethylene oxide and 9.7 mol of propylene oxide on a phenolic resin

(SNPH- 1)

Additive 13 mol

ethylene oxide and 15 mol of oxide

propylene to phenolic resin

(SNPH-I)

Additive 8, + mol

ethylene oxide and 20 mol of oxide

propylene to phenolic resin

(SNPHCH1)

Additive 15 mol of ethylene oxide and 22 mol of propylene oxide on a phenolic resin

Additive 8 mol

ethylene oxide and 22 mol oxide

propylene to phenolic resin

Ethoxylated cumylphenol

(10 ol of ethylene oxide) by a known method

Table 1

60

99

90

100

60

90

100

60

90

60

100

90

100

60

90

20

90

100

Well 176i

Water content, 15-27

68 6S

12v 20 30

1 (0

0

10 10

five

55-60

table 2

Table 3

2.3

W2051,561,390,7 t, 6

5036,871.189,94 0.16

1005885100 0.12

10097,3100100100

6090100100100

CHnx-i 60 78.1 85.5 88.5 88.5 2.6.

ii5,6.8,267,775,55,63

kO 60

70,372,972,978,15,0i

80 85,985,988,588,52,611

60 859090951,

62,572,59092,51,73

60 85100100100. 79375068

Claims (2)

Claims for phenol resin production of phenol. Method of dehydrating oil by cumene introduction of a demulsifier based on sources of information that ethoxylated cumylphenol, of t- $ taken into account in the examination of the fact that, from 1. Levchenko DoN. et al. “Emulsions are used to increase the degree of dehydration of oil with water and methods of their destruction, and M. Chem, 19b7, p. is used as a demulsifier. 110, the product is consistent 2. USSR author's certificate of compound 8-15 mol of ethylene oxide, No. 197068, cl. C 10 G ZZ / O, 1966 and mol of propylene oxide to 1 mole (prototype) and acetone decomposition of hydroperoxide