Biological oil and method for preparing the same by biomass magnetic stabilization fluidized bed reactor middle-temperature fast hot crack

Abstract

The invention relates to a biological oil and a method to produce biologic oil by rapid cracking under mid-temperature through a biomass magnetic-stable fluid-bed reactor. The biological oil consists of (calculated by weight percent) C (more than 71.1 percent), H (more than 7.3 percent), O (16.6 percent) and N (0.1 percent); oil viscosity (more than 106mPa.s), pH value (bigger than 2.5), and water content (less than 20 percent). In terms of production method, biomass materials (straws, leaves, saw dust, organic wastes) are cracked rapidly in a magnetic-stable fluid-bed reactor under an intermediate temperature; gas-solid separation is conducted through a cyclone separator; the gas is condensed, and biological oil is achieved after simple hydrogenation of the condensed liquid and distillation, and the production rate is as high as 75 percent. The biological oil consists of rich chemical elements (phenol, aldehyde substance), and the economic value is relatively high. The technology adopts biomass as raw materials and such materials can be achieved easily; the price is low, the technical process is simple, the application and market prospect are promising; and the invention can settle environmental problems efficiently and increase the income of farmers. Therefore, the invention meets the requirements of sustainable development.

Description

Technical field: [0001] The invention relates to a bio-oil and a method for producing bio-oil by medium-temperature rapid pyrolysis in a magnetically stable fluidized bed reactor of biomass, and belongs to the field of medium-temperature rapid pyrolysis in biomass thermochemical transformation in biomass engineering. Background technique: [0002] Biomass rapid pyrolysis liquefaction technology is one of the cutting-edge technologies in the field of renewable energy development in the world today. The product is mainly bio-oil, which can obtain 85% to 90% of the energy of the raw material (it is the means with the highest utilization rate at present). In addition to being used as fuel, bio-oil can also be further separated, extracted, and synthesized into high value-added chemical raw materials. [0003] At present, the thermal cracking reactors used to produce bio-oil have been put into large-scale production, including rotating cone reactors and their improved models, flu...

AI Technical Summary

Problems solved by technology

For example, the rotating cone reactor of the Material Technology Group of the University of Twente in the Netherlands does not require carrier gas, the device volume is small, and the bio-oil yield is high, but the operation and maintenance of the equipment are complicated and the energy consumption is high.

The fluidized bed reactor of the University of Waterloo in Canada has simple equipment and technology, high reaction intensity, high heat and mass transfer rate, and uniform temperature field, but the bed material is easy to lose and agglomerate with the material

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