SU1624016A1 - Process for preparing caking additives from heavy petroleum feedstock - Google Patents

Abstract

The invention relates to a process for the preparation of sintering additives from heavy crude oil and makes it possible to increase the sintering capacity of the additives. The feedstock is heated to 400-500 ° C, fed to the upper part of the reactor above the maximum fill level of the reactor and to the lower part of the reactor for 3 hours from the beginning of the entry of the feedstock to the upper part of the reactor, the feedstock is held to produce sintering agents

Description

The invention relates to a method for producing sintering additives and can be used in oil refining and metallurgical scrubbing.

OBJECT OF THE INVENTION Improving the ability of additives

As a source of raw materials used tar West Siberian oil with the following characteristics

Density kg / cm984

Coking ability% 13.4

Sulfur content, May% 1.9

Boils up to 500 ° С, May% 14

The raw materials from the tanks are pumped through the furnace at a rate of 20 l / h to heat up to 400 to 500 ° C. After filling the reactor by switching the valve, the feedstock from the heating of the gel furnace is fed to another reactor. The steam is fed at the bottom and side of the reactors in the amount of 0.8 kg / h

The gaseous reaction products are distilled from the top of the reactor and sent to cenapdTop for gas separation and

distillate you. After cooling the finished product, it is discharged from the reactor.

Example 1. Raw materials with a temperature of 440 ° C are fed into the reactor through a side entry before filling with a sintering additive to a height of 0.65 m.

52.8 kg of sintering additive with a volatile content of 33 wt.% Are obtained, sintering capacity of 72 (Horn index)

Example 2 Carried out analogously to Example 1, but along with feeding the feed stream to the upper part of the reactor in the first

2 hours feed the hot material from the bottom of the reactor.

Get 52,0 kg sintering additives. Indykds Horns SD 76

Example 3 Carried out analogously to Example 1, but along with feeding the feed stream to the top of the reactor in the first

3 hours feed the hot material from the bottom of the reactor.

52.7 kg of sintering additive are obtained. Horn Index 81.

(/

WITH

about

N3 U Oh

ABOUT

Example 4. The procedure was carried out analogously to Example 1, but along with the supply of the feed stream to the upper part of the reactor, for the first 4 hours, hot feed was carried out from the bottom of the reactor.

51.9 kg of sintering additive are obtained. Horn Index 59.

P meper 5. Carried out analogously to example 1, but along with the supply of the feed stream, coolant was continuously supplied to the upper part of the reactor — superheated steam with a temperature of 600 ° C was fed from the bottom, its flow rate was 5 kg / h, the height of the reactor was 0 , 65 m

46.5 kg of sintering additive with a volatile content of 33.0 wt.% Are obtained. The sintering ability according to the Horn index is 51, the yield of the sintering additive is 20%.

With simultaneous supply of raw materials (examples 2 and 3) in the first 3 hours, the maximum quality of the product is achieved through the bottom and side inlets (Horn index 81). Increased

five

0

The duration of the supply of raw materials from the bottom of the reactor (Example 4) deteriorates the basic quality indicators, this reduces the yield of the product, increases the temperature difference in the reactor and, as a result, deteriorates the sintering properties (Horn index 59).

Claims (1)

Invention Formula The method of obtaining sintering additives from heavy oil feedstock, including heating the feedstock to 400-500 ° C, introducing it into the upper part of the reactor is higher than the maximum filling level of the reactor and holding the bottom heat carrier, which is increase the sintering ability of the additives; feedstock is used as a heat carrier and heat carrier is supplied for 3 hours from the beginning of the entry of the feedstock into the upper part of the reactor.