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A kind of method for preparing methanol from biomass in one step

A biomass and methanol technology, which is applied in the preparation of hydroxyl compounds, organic compounds, chemical instruments and methods, etc., can solve the problems of high cost and high energy consumption, and achieve the effects of high utilization rate, low equipment investment and simple operation

Active Publication Date: 2015-10-28
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process is relatively mature, its gas production process requires high energy consumption and a large amount of fossil fuels such as coal, oil or natural gas.
The process will become more expensive as fossil fuels are depleted

Method used

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  • A kind of method for preparing methanol from biomass in one step
  • A kind of method for preparing methanol from biomass in one step

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 3g of bagasse and 0.6g of calcium carbonate, stir well, and fill to the middle of the reaction tube with openings (openings can be closed) at both ends. Inject 40ml / min of nitrogen gas into the reaction tube for air tightness test. After passing the test, continue to ventilate for 3 minutes to remove the air inside the reaction tube. Then, the reaction tube was heated at a rate of 50°C / min. When the temperature rose to 100°C, acetone was introduced from one end of the reaction tube at a flow rate of 0.3ml / min, and the other end of the reaction tube was cooled by an ice-water bath to collect The reaction effluent was heated to a final temperature of 300°C and stayed for 1 min, then the experiment was stopped, that is, the collection of the reaction effluent was stopped, and at the same time, the heating of the reaction tube and the introduction of nitrogen and acetone were stopped, and the reaction tube was naturally cooled to room temperature. The collected liquid...

Embodiment 2

[0032] Weigh 3g of bagasse and 0.6g of calcium carbonate, stir well, and fill to the middle of the reaction tube with openings (openings can be closed) at both ends. Inject 40ml / min of nitrogen gas into the reaction tube for air tightness test. After passing the test, continue to ventilate for 3 minutes to remove the air inside the reaction tube. Then, heat up the reaction tube at a rate of 80°C / min. When the temperature rises to 100°C, feed acetone from one end of the reaction tube at a flow rate of 0.4ml / min, and cool the other end of the reaction tube with an ice-water bath. Collect the reaction effluent, raise the temperature to a final temperature of 300°C and stay for 1 min, then stop the experiment, that is, stop collecting the reaction effluent, stop heating the reaction tube and feed nitrogen and acetone, and the reaction tube is naturally cooled to room temperature. The collected liquid phase product was analyzed by gas chromatography for its composition, and it was ...

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Abstract

The invention discloses a method for preparing methanol by a biomass gas one-step method, which comprises the following steps: 1)weighting calcium carbonate and bagasse, fully and uniformly stirring; 2)filling a mixture of calcium carbonate and bagasse in a reaction tube with openings at two ends, introducing nitrogen and heating a reaction tube in nitrogen atmosphere with a heating rate of 50-80 DEG C / min, while heating to 100 DEG C, introducing acetone from one end of the reaction tube with flow of 0.05-0.15ml / (min.g bagasse), collecting a reaction eluant from the other end of the reaction tube; continuously heating to the temperature of 300 DEG C, keeping the temperature for 1-2 minutes and stopping to collect the reaction eluant; and separating the collected liquid phase products to obtain methanol. The method employs the agriculture waste as a raw material, the operation is simple, the equipment investment is less, waste can be changed into valuables, and the method has large economic and practical value.

Description

(1) Technical field [0001] The invention relates to a method for preparing methanol from biomass in one step. (2) Background technology [0002] According to the "Prospect of China's Methanol Industry Market Research and Investment Forecast Analysis Report", the industry added 6.4 million tons of new production capacity in 2010, and 8.14 million tons of new production capacity in 2011. In 2012, more than 5.5 million tons of new methanol plants will be put into operation in my country. The methanol industry research team of the Qianzhan Industry Research Institute believes that in order to digest excess capacity, it is necessary to accelerate the expansion of emerging fields such as methanol gasoline and methanol to olefins. [0003] Methanol is an important chemical raw material, which can be widely used in many aspects: [0004] 1. One of the basic organic raw materials, mainly used in the manufacture of various organic products such as formaldehyde, acetic acid, methyl ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C31/04C07C29/00
CPCC07C29/00C07C31/04
Inventor 王建国冷帅王新德王磊
Owner ZHEJIANG UNIV OF TECH