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Method and device for thermolysis preparing liquid fuel from steam explosion stalk fermented residue

A technology for steam-exploding straw and residues, which is applied in the preparation of liquid hydrocarbon mixtures and the petroleum industry, and can solve the problems of intensified secondary reactions of pyrolysis steam, low conversion rate of volatile matter, serious secondary reactions, etc.

Inactive Publication Date: 2006-07-12
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although these fluidized bed pyrolyzers (including circulating fluidized beds) have excellent heat transfer characteristics, they also intensify the secondary reaction of pyrolysis steam, and at the same time, due to the large amount of carrier gas used, it affects the pyrolysis steam to a certain extent. recycling
The University of Twente in the Netherlands has announced a method (US2002117390) for pyrolyzing waste using a rotating cone reactor. Restricted
Therefore, the analysis of the current biomass pyrolysis reactor has the following disadvantages: the existing fluidized bed pyrolysis reactor gas residence time is long, the secondary reaction is serious, and the quality of bio-oil is reduced; Insufficient solution, low conversion rate of volatile matter

Method used

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  • Method and device for thermolysis preparing liquid fuel from steam explosion stalk fermented residue
  • Method and device for thermolysis preparing liquid fuel from steam explosion stalk fermented residue
  • Method and device for thermolysis preparing liquid fuel from steam explosion stalk fermented residue

Examples

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Effect test

Embodiment 1

[0057] Embodiment 1: wheat straw

[0058]After the wheat straw is steam-exploded and fermented to remove hemicellulose and part of the cellulose, the remaining residues with high C and H values ​​are dried and pulverized, then added to the straw silo, and fed by a two-stage screw feeding device. Rotary sieve plate pyrolyzer, and heat transfer and pyrolysis on the rotating sieve plate mixed with hot sand from the hot sand bin, unpyrolyzed wheat straw and semi-coke, hot sand is transferred to the next rotating sieve plate step by step, heat transfer, Pyrolysis, the semi-coke and pyrolysis steam formed together with the hot sand enter the gas-solid rapid separator for separation, the separated pyrolysis steam enters the cyclone filter for further coke removal, and the clean pyrolysis steam enters Tubes—quickly condensed in the double-wall sprayer, the non-condensable pyrolysis steam is further condensed and collected by the cryocooler and electrostatic collector, and the pyrolysi...

Embodiment 2

[0060] Example 2: corn stalks

[0061] Corn stalks are steam-exploded and fermented to remove hemicellulose and part of the cellulose, and the remaining residues with high C and H values ​​are dried and pulverized, then added to the straw silo, and fed by a two-stage screw feeding device. into the rotary sieve plate pyrolyzer, and mixed with the hot sand from the hot sand bin on the rotary sieve plate for heat transfer and pyrolysis. Heat and pyrolysis, the semi-coke and pyrolysis steam formed together with the hot sand enter the gas-solid rapid separator for separation, and the separated pyrolysis steam enters the cyclone filter for further removal of coke ash, clean pyrolysis steam Then enter the tube-double-wall sprayer to condense quickly, and the non-condensable pyrolysis steam will further condense and collect the pyrolysis liquid through the cryocooler and electrostatic collector, and collect the pyrolysis liquid stored in the storage tank, that is, the obtained of liq...

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Abstract

The invention relates to a method and apparatus for using stalk enzyme remainder to fast prepare for liquid fuel with high quality (biological oil) in the field of energy chemical technology. It adds rotating perforated plate distributor, fast separator, cyclone separator and pipe-walls spray thrower and so on. It controls the distributing condition so that the stalk remainder dose fast distributing by the rotating perforated plate distributor to obtain the liquid flue with high heat value. The invention also provides a device to obtain the high liquid recovery factor biology oil.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical engineering, and particularly relates to a method and device for preparing high-quality liquid fuel (bio-oil) by rapid pyrolysis of steam-exploded straw fermentation residues, that is, after the straw is steam-exploded and fermented, the residue is subjected to Rapid pyrolysis in a rotary sieve plate pyrolysis reactor to obtain liquid fuel with high calorific value. Background technique [0002] Energy and environmental issues have become the focus of global attention. With the progress of industrialization, the consumption of coal and petroleum energy has led to the gradual depletion of resources, and at the same time brought serious pollution to the environment, and a large amount of carbon dioxide emissions have aggravated the greenhouse effect. Biomass is an important, stable and renewable alternative energy source because of its low content of sulfur and nitrogen, low pollution, ...

Claims

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Application Information

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IPC IPC(8): C10G1/00
Inventor 姚建中杨昌炎林伟刚杨学民陈洪章
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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