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Device and method for preparing biomass oil by using waste heat of blast furnace granulated slag

A technology of biomass oil and granulated slag, which is applied in coking ovens, petroleum industry, direct heating and dry distillation, etc., can solve the problems of waste of heat resources and water resources, environmental pollution, etc., achieve strong heat storage capacity, reduce production costs, The effect of high temperature

Inactive Publication Date: 2013-11-20
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At present, the water flushing slag process is used to recover slag at home and abroad. This method not only wastes a lot of heat and water resources, but also produces SO 2 and H 2 S and other harmful gases, causing environmental pollution

Method used

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  • Device and method for preparing biomass oil by using waste heat of blast furnace granulated slag
  • Device and method for preparing biomass oil by using waste heat of blast furnace granulated slag
  • Device and method for preparing biomass oil by using waste heat of blast furnace granulated slag

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Embodiment 1

[0029] One, the device for producing biomass oil according to the present invention

[0030] The structure of the device for producing biomass oil by using the waste heat of blast furnace granulated slag according to the present invention is as follows: figure 1 As shown, the device comprises a granulator 2, a fan 4 connected to the granulator 2 and a rotatable rotary cone reactor 5, and the rotary cone reactor 5 is provided with an upper end feed port and an upper end gas outlet and the outlet at the lower end, the gas outlet of the rotating cone reactor is sequentially connected with a first separator 11 and a condenser 10, and the condenser 10 is also connected with an oil storage tank 13 for storing biomass oil.

[0031] The outlet of the rotating cone reactor is sequentially connected with a second separator 12 and a heat exchanger 7, and the granulator 2 is connected with the heat exchanger 7 through a pipe for transmitting high-temperature flue gas, and the heat exchang...

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Abstract

The invention provides a device and method for preparing biomass oil by using waste heat of blast furnace granulated slag. The method comprises the following steps: granulating blast furnace molten slag into blast furnace granulated slag through a granulator, delivering the blast furnace granulated slag serving as heat carrier particles for preparation of biomass oil into a rotary conical reactor, mixing with biomass particles, performing heat transfer and mass transfer reaction on the mixed particles under the rotation driving action of the reactor to quickly crack and gasify the biomass particles, and cooling the generated condensable gas to obtain the biological oil. The technical scheme of the invention maximally uses a large mount of waste heat contained in the high-temperature granulated slag for preparation of biomass oil, provides 'free' energy for production of biomass energy and can provide sufficient heat energy, and recycling of the waste heat further lowers production cost of biomass liquefaction, so that the main bottleneck constraining industrial production of biomass energy at present is solved, thereby effectively solving the problem that the production cost of biomass fuel is too high, which restricts industrialization of the biomass fuel.

Description

technical field [0001] The invention belongs to the field of producing biomass oil, and in particular relates to a device and a method for producing biomass oil by utilizing waste heat of blast furnace granulated slag. Background technique [0002] The traditional biomass pyrolysis liquefaction process requires electric heating as the heat source to provide energy to make the biomass particles reach the high temperature required for pyrolysis in a short period of time. At the same time, the drying and cooling of biomass raw materials also consume a certain amount of energy. energy. Studies have shown that about 600kcal of heat is consumed to produce 1kg of biomass oil (calorific value is about 5000kcal / kg). If conventional energy sources such as mineral fuels and electric energy are used, the production cost of biomass energy will be increased, and new pollution will be caused at the same time. In the process of biomass energy production, excessive energy consumption and h...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10B53/02C10B49/16
CPCY02P20/129
Inventor 仪垂杰岳霞周扬民罗思义李宗刚王亭亭
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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