Shale oil processing method for producing propylene

A processing method and shale oil technology, applied in the petroleum industry, hydrotreating process, bulk chemical production, etc., can solve the problems of propylene production rate reducing dry gas and coke production rate, etc., to increase propylene production rate, improve Liquefied gas production rate and the effect of reducing operating consumption

CN102465036BActive Publication Date: 2014-05-28CHINA PETROLEUM & CHEM CORP
10 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-05-28

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a shale oil processing method for producing propylene. The method comprises the following steps of: hydrogenating shale oil, separating shale oil hydrogenation products to obtain gas and liquid reaction oils, and separating the liquid reaction oil into a shale oil hydrogenation light oil and a shale oil hydrogenation heavy oil; introducing the shale oil hydrogenation heavy oil into a first riser reactor for undergoing a catalytic pyrolysis reaction; and introducing a part of or all of the shale oil hydrogenation light oil into a second riser reactor for undergoing a catalytic pyrolysis reaction. The shale oil processing method provided by the invention has high propylene yield.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a shale oil processing method and a device thereof. Furthermore, the present invention relates to a method for deep conversion of shale oil to produce light olefins. Background technique

[0002] Worldwide research reports on oil shale and shale oil stagnated for many years following the low oil prices of the 20th century. However, most of the shale oil refining patents reported before the early 1980s revolved around how to refine the quality of shale oil. It is a processing method of coking and then hydrotreating its liquid hydrocarbon products. US4218309 describes a method for reducing sulfur content during shale oil production. US4238320 introduces the method of using hydrogenation to reduce nitrogen content first, and then further denitrifying shale oil with ion exchange resin.

[0003] US4344840 introduces a method for hydrocracking and hydrofining of shale oil in a multistage reactor to produce jet fuel and diesel oil...

Examples

Embodiment 1

[0041] This example illustrates the effect of converting the shale oil hydrogenated liquid product into shale oil hydrogenated light oil and shale oil hydrogenated heavy oil according to the method provided by the present invention according to the cut point of 265°C.

[0042] The experiment was carried out in a medium-sized riser catalytic cracking unit, whose configuration is as follows figure 1 shown. The inner diameter of the first riser reactor (riser reactor 1) of this medium-sized device is 16 millimeters, and the height is 3800 millimeters, and the inner diameter of the second riser reactor (riser reactor 2) is 16 millimeters, and the height is 3200 millimeters, The outlet of the second riser reactor is connected to the fluidized bed reactor. The inner diameter of the fluidized bed reactor 4 is 64 mm and the height is 600 mm. The test adopts a single-pass mode (that is, the product is not re-smelted) to operate. The high-temperature regenerant is respectively introduc...

Embodiment 2

[0045] This example illustrates the effect of converting shale oil hydrogenated liquid products into shale oil hydrogenated light oil and shale oil hydrogenated heavy oil according to the method provided by the present invention according to the cut point of 350°C.

[0046] The experimental device is the same as in Example 1, and the main operating conditions and results of the experiment are listed in Table 3.

Embodiment 3

[0048] This example illustrates the effect of the method provided by the present invention to divide the shale oil hydrogenated liquid product into shale oil hydrogenated light oil and shale oil hydrogenated heavy oil according to the cut point of 350°C for catalytic cracking, and optimize the reaction conditions at the same time.

[0049] The experimental device is the same as in Example 1, and the main operating conditions and results of the experiment are listed in Table 5.