Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for directionally depolymerizing biomass and converting biomass into aviation oil cycloalkane component

A technology of oil cycloalkane and biomass, which is applied in the field of biomass resource utilization, can solve problems such as increased difficulty, and achieve the effects of directional production, increased yield, and extended service life

Pending Publication Date: 2021-06-11
SOUTHEAST UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the research of Li Xinxin et al., the catalytic hydrogenation of noble metal Pd on activated carbon requires additional solvent (n-hexane), which increases the difficulty of product separation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for directionally depolymerizing biomass and converting biomass into aviation oil cycloalkane component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The invention provides a device and method for directional depolymerization and conversion of biomass into naphthenic components of aviation oil. The method uses biomass as raw material to produce C6-C8 low-carbon aromatics through pyrolysis and catalytic reforming, C8-C15 aromatics are prepared by alkylation of C6-C8 low-carbon aromatics, and aviation fuel is directly produced by hydrogenation and saturation of C8-C15 aromatics. range of naphthenic components.

[0038] Such as figure 1As shown, the device consists of five systems, including biomass directional depolymerization reaction system, aromatics alkylation system, hydrogenation saturation reaction system, rectification system and waste heat recovery and utilization system. The above five systems are connected with each other and together constitute a device for directional depolymerization of biomass and conversion into naphthenic components of aviation oil.

[0039] Biomass directional depolymerization react...

Embodiment 2

[0046] This example provides a method for directional depolymerization of biomass and conversion into naphthenic components of aviation oil, including:

[0047] Step 1: directional depolymerization of biomass into C6-C8 low-carbon aromatics;

[0048] In one embodiment, the biomass raw material is Chinese fir particles with an initial moisture content of 15%, and the dried biomass is added from the bottom of the fluidized bed, and rapidly pyrolyzed under normal pressure and 500-600°C to obtain oxygen-containing Compound high-temperature steam and solid coke; high-temperature steam and solid coke enter the cyclone separator, and the coke stays in the cyclone separator; high-temperature steam enters the fixed bed, and the reforming reaction occurs under normal pressure, catalyst, and 500~800 ° C conditions, the catalyst HZSM-5 or CaO / HZSM-5 molecular sieve is used; the product after catalytic reforming enters the condenser to condense the C6-C8 low-carbon aromatics; the non-conde...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device and a method for directionally depolymerizing biomass and converting the biomass into an aviation oil cycloalkane component. The device comprises a biomass directional depolymerization reaction system which is used for preparing C6-C8 low-carbon aromatic hydrocarbon through rapid pyrolysis-catalytic reforming of biomass; an aromatic hydrocarbon alkylation system which is used for converting the low-carbon aromatic hydrocarbon generated by the biomass directional depolymerization reaction system into C8-C15 aromatic hydrocarbon through alkylation reaction; a hydrogenation saturation reaction system which is used for converting the C8-C15 aromatic hydrocarbon generated by the aromatic hydrocarbon alkylation reaction system into C8-C15 cycloalkane through hydrogenation reaction; and a rectification system which is used for separating C6-C7 cycloalkanes and C8-C15 cycloalkanes in products of the hydrogenation saturation system. According to the device and the method, the biomass complex polymer is directionally depolymerized and converted into the C8-C15 cycloalkane aviation oil key component, so that high-value utilization of the biomass is realized, and a scientific basis and technical reserve are provided for preparing the aviation fuel cycloalkane component from the biomass.

Description

technical field [0001] The invention relates to the technical field of biomass resource utilization, in particular to a device and method for directional depolymerization and conversion of biomass into naphthenic components of aviation oil. Background technique [0002] As an important part of renewable energy, biomass energy is the only carbon-containing renewable energy that can be converted into liquid fuel. Compared with traditional fossil jet fuel, aviation biofuel can reduce carbon emissions by 60-80% in the life cycle. Aviation kerosene is composed of three major chemical components of paraffins, naphthenes and aromatics and necessary additives, of which the mass fractions of naphthenes and aromatics are 20-50 wt% and 8-25 wt%, respectively, and the carbon number range is mainly concentrated in C8-C15 . At present, the technical route of using biomass resources to prepare aviation kerosene mainly includes animal and vegetable oil hydrodeoxygenation-cracking / isomeriz...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C10G1/00
CPCC10G1/002C10G2300/1011C10G2300/70C10G2300/4006C10G2300/4012
Inventor 沈德魁龙柯沅迂文兵
Owner SOUTHEAST UNIV