A new type of oil shale dry distillation refining method and device

Abstract

The invention relates to a novel oil shale dry distillation and oil refining method and a novel oil shale dry distillation and oil refining device. Firstly, the invention provides the oil shale dry distillation and oil refining method. In the method, oil shale particles with granularity less than 15mm are used as raw materials; and high temperature flue gas generated by burning semicoke and / or dry distillation gas is utilized to indirectly heat the oil shale particles so as to realize dry distillation of oil shale. The invention also provides the novel oil shale dry distillation and oil refining device for the oil shale dry distillation and oil refining method. Due to the adoption of the oil shale dry distillation and oil refining method and the oil shale dry distillation and oil refiningdevice, which are provided by the invention, high shale oil yield can be obtained, recycling of various products can also be realized, the burning utilization effect of the semicoke is high, and the utilization rate of the oil shale can reach 100 percent. The oil shale dry distillation and oil refining method and the oil shale dry distillation and oil refining device are not only beneficial for improving the economic benefits, but also are beneficial for protecting the environment.

Description

technical field [0001] The invention relates to an oil shale carbonization refining method and device, belonging to the technical field of petroleum processing. Background technique [0002] Oil shale, also known as kerogen shale, is a sedimentary rock containing organic matter (usually about 15%-50%), generally belonging to sapropel peat with high mineral content, and is a solid fossil fuel with low calorific value, and its color is light gray to dark brown. The organic matter contained in oil shale is a polymer insoluble in organic solvents, called kerogen or kerogen. The inorganic minerals of oil shale mainly include quartz, kaolin, clay, mica, carbonate rock and pyrite. The content of inorganic minerals in oil shale usually accounts for about 50%-85%, which is higher than its organic content. Oil shale is an important raw material for "artificial petroleum", that is, "synthetic liquid fuel (synfuel). Retort gas and shale semi-coke. Shale oil is used as fuel oil and ...

AI Technical Summary

Problems solved by technology

[0006] 1) The oil shale carbonization furnace has not been organically combined with the circulating fluidized bed technology, and the semi-coke after carbonization has not been effectively used for combustion and power generation;

[0007] 2) For massive shale retort technology, wet coke is used to extract coke, and semi-coke is difficult to be further utilized, and because gas is used as heat carrier, retort gas is diluted, the condensation recovery system is huge, and the calorific value of gas is low, so it is difficult to further Comprehensive utilization

And for massive shale dry distillation technology, the utilization rate of oil shale is less than 85%;

[0008] 3) For granular shale dry distillation technology, shale ash is used as the heat carrier, and one part of semi-coke is mixed with three parts of shale ash, so that the calorific value of the mixed semi-coke is low and it is difficult to further effectively use it;

[0009] 4) The current mature granular shale dry distillation technology has the disadvantages of too many operating links and high manufacturing costs

[0010] In terms of oil shale development and utilization, compared with foreign countries, there is a big gap in basic research, oil refining, power generation and other engineering technologies, especially in the slow development of industrialization and engineering, and it is difficult to adapt to the sustainable development of national energy. strategic imperative

At present, in addition to accumulating some experience in oil shale retort refining and power generation in Fushun, Liaoning, Longkou, Shandong, and Huadian, Jilin, the comprehensive development and utilization of oil shale is still extremely weak

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