Room-temperature low-pressure preparation method of biomass granules

A technology of biomass particles and natural plant fibers, which is applied in the direction of raw material extrusion and granulation, can solve the problems of complex production equipment, high production costs, and high energy consumption, and achieve simplified production equipment and processes, less pollution emissions, and high calorific value high effect

Inactive Publication Date: 2012-08-29
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of high energy consumption, complex production equipment and high production cost in the above-mentioned high-temperature and high-pressure biomass particle preparation method, and provide a method for preparing biomass particle at normal temperature and low pressure. The preparation method simplifies the production equipment and Process, reduce energy consumption and cost of production

Method used

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  • Room-temperature low-pressure preparation method of biomass granules

Examples

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Effect test

Embodiment 1

[0013] Preparation of biomass pellets at room temperature and low pressure with a weight ratio of cotton fiber to wood flour of 1 / 100: Weigh 1.49 g of sawdust as raw material, 0.01 g of cotton fiber with a length of 3 mm as a strengthening agent, mix them evenly, Under the condition of MPa, it is compressed into cylindrical biomass particles with a diameter of 12mm.

Embodiment 2

[0015] Preparation of normal temperature and low pressure biomass particles with a weight ratio of cotton fiber to wood flour of 1 / 5: Weigh 1.25 g of sawdust as raw material, 0.25 g of cotton fiber with a length of 3 mm as a strengthening agent, mix them evenly, Under the condition of MPa, it is compressed into cylindrical biomass particles with a diameter of 12mm.

Embodiment 3

[0017] Preparation of biomass particles at room temperature and low pressure with the weight ratio of wood fiber to wood powder being 1 / 4: Weigh 1.2 g of sawdust as raw material, 0.3 g of kraft wood fiber with a length of 3 mm as a strengthening agent, mix them evenly, Cylindrical biomass particles with a diameter of 12 mm were pressed under the condition of 6 MPa.

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Abstract

The invention discloses a room-temperature low-pressure preparation method of biomass granules. The room-temperature low-pressure preparation method of the biomass granules comprises the following steps: taking one or more biomasses of dried and pulverized sawdust, straws, rice husk, wild herbaceous plants or leaves as raw materials and natural plant fiber or synthetic fiber as an enhancer; uniformly mixing the enhancer fiber with the length range of 0.1-50 mm and the dried and pulverized biomass raw materials according to a weight ratio of 1: 100-100: 1; and processing the mixture into the biomass granules at a temperature of 5 to 50 DEG C and a pressure of 0.1-10 MPa. By adopting a room-temperature low-pressure process, production equipment and a production process are simplified, and the energy consumption in the production and the production cost are reduced; the biomass granules prepared by the preparation method have the advantages of high density and high strength and are convenient to transport, store and feed; and the biomass granules have the advantages of high calorific value and low pollutant emission in a combustion process, and the like, so that the problems of energy crisis and environmental pollution are effectively solved.

Description

Technical field [0001] The invention is a new energy field, which involves a method of preparation of a normal temperature low -pressure biomass particles. Background technique [0002] With the development of the world economy, it is an inevitable development trend as the development of oil, natural gas, and coal as non -renewable resources. The use of biological energy replacement of non -renewable resources is an inevitable development trend.In recent years, the use of forest wood processing waste and straw and other processing that is suppressed into dense biomass particles as fuels as fuel has gradually increased. The advantages of biomass particles fuel are: 1. After moldingTransportation, storage and use, 2. High heat value, high volatile content, excellent fire combustion performance, 3. The use of biomass fuel can reduce the emissions of sulfur dioxide, nitrogen oxides, etc.Flying ash, less residue, ash residue can be returned to the field, it can be called green renewab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/20
Inventor 熊亚孔令军田双红刘婷
Owner SUN YAT SEN UNIV
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