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High-efficiency production technique for preparing fuel oil by pyrolyzing biomass

A biomass pyrolysis and production process technology, which is applied in the petroleum industry and the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of low pyrolysis yield, undeveloped production scale, immature technology, etc.

Active Publication Date: 2013-11-20
广饶县泽润环保科技有限公司
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Problems solved by technology

At present, my country's biomass pyrolysis fuel oil technology starts late, and has the disadvantages of outdated equipment, immature technology, and low pyrolysis yield, and has not yet formed a certain production scale.

Method used

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  • High-efficiency production technique for preparing fuel oil by pyrolyzing biomass

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Embodiment Construction

[0020] see figure 1 , firstly, a self-mixing downward circulating fluidized bed reaction device is given, which includes a fluidized bed regenerator 1, an inertial separator 2, a pyrolysis reactor 4, a semi-coke separator 6, and a semi-coke return device 6 connected in sequence Composed circulation system; the upper outlet of the inertia separator 2 is connected to the cyclone separator 3, and the lower outlet of the cyclone separator 3 is connected to the fluidized bed regenerator 1 through the heat carrier return device 7; the pyrolysis gas outlet of the semi-coke separator 5 Connected to the spray tower 12, the spray tower 12 is provided with a spray port 13 inside, a pyrolysis dry gas outlet 14 at the top, and a fuel oil outlet 15 at the bottom. A high-temperature heat transfer device is installed at the lower end of the inertia separator 2 at the solid material discharge port, which includes a motor 11 and a gearbox 10 to drive and rotate the material shaft 8 (the speed i...

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Abstract

The invention relates to a high-efficiency production technique for preparing fuel oil by pyrolyzing biomass, which adopts a circulating fluid bed reactor. The production technique comprises the following steps: (1) pulverizing the raw material pine wood into granules with the granule size of 1-3 millimeters, and drying until the relative water content is less than 8% for later use; (2) pyrolyzing every 12 tons of absolute dry material for one hour, wherein the reactor temperature is kept at 480-530 DEG C in the pyrolysis process, and the internal pressure is kept at 0 to -500 Pa; and (3) carrying out spray cooling on the reaction pyrolytic gas to lower than 60 DEG C, separating and cooling to obtain the fuel oil, wherein the spray pressure is controlled at -1000 Pa. The invention aims to optimize the biomass pyrolysis technique on the premise of not changing the existing equipment and traditional technical process, so that the biomass is pyrolyzed efficiently, and the yield of fuel oil is greatly enhanced.

Description

technical field [0001] The invention belongs to the field of biomass new energy, and in particular relates to a production process for efficiently pyrolyzing biomass and producing fuel oil with high efficiency. Background technique [0002] With the rapid development of society, energy and ecological issues have attracted more and more attention. Without energy, economic development will lose momentum; if the ecology is destroyed, the living space of human beings will be limited. Choosing new renewable energy sources and reducing environmental pollution have become the main goals pursued by people, and the technology of producing biofuels from biomass pyrolysis has become a problem of concern to the world. At present, my country's biomass pyrolysis fuel oil technology started late, and has the disadvantages of outdated equipment, immature technology, and low pyrolysis yield, and has not yet formed a certain production scale. Contents of the invention [0003] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00
Inventor 李杰侯海建
Owner 广饶县泽润环保科技有限公司
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