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

A kind of preparation method of bio-based aromatic hydrocarbon

A bio-based, aromatic technology, applied in chemical instruments and methods, production of hydrocarbons and hydrocarbons from oxygen-containing organic compounds, etc., can solve the problems of limited raw materials, only 18% conversion rate of aromatics, and not much biomass, etc. To achieve the effect of reducing dependence, improving methanol conversion rate, and simple reaction operation

Active Publication Date: 2018-08-10
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, many domestic scientific research institutions and universities are focusing on the development of MTA catalysts and their process technologies, but the raw materials of these processes are limited to fossil raw materials, and there are not many studies on using biomass as raw materials.
What adopted in the patent CN104549446A is the method for producing aromatics from biomass waste, wherein the catalyst is used Ga(NO 3 ) 3 Modification, selection of suitable silicon-aluminum ratio and metal-loaded ZSM-5 molecular sieve catalyst, but the conversion rate of aromatics is only 18%; in patent CN102199069A, methanol and straight-run gasoline are used as reaction raw materials to prepare aromatics, and in patent CN102199446A, Methanol and Fischer-Tropsch synthetic oil are used as reaction raw materials to produce aromatics. Although the two patents use other raw materials to co-produce aromatics, and the conversion rate and yield of aromatics are high, the catalyst needs metal modification

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
  • A kind of preparation method of bio-based aromatic hydrocarbon
  • A kind of preparation method of bio-based aromatic hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Put 10g of catalyst into a fixed-bed reactor, and pretreat the catalyst by steam method for 12h at normal pressure of 480°C, and the mass space velocity of deionized water is 2h -1 . After processing finishes, pass into nitrogen, control reactor internal pressure to be 0.16MPa, temperature is 480 ℃, remove nitrogen, methanol aqueous solution (methanol mass concentration is 90%) and fatty acid methyl ester are pumped into reactor and fatty acid methyl ester respectively by feed pump. Catalyst contact reaction, feed mass space velocity is 1h -1 , wherein the weight ratio of methanol and fatty acid methyl ester is 1:1. The reaction products were analyzed using the PONA software developed by the Academy of Stone Sciences, and the results are shown in Table 1.

Embodiment 2

[0030] Put 10g of catalyst into a fixed-bed reactor, and pretreat the catalyst by steam method for 12h at normal pressure of 480°C, and the mass space velocity of deionized water is 2h -1 . After the treatment, feed nitrogen, control the pressure in the reactor to be 0.16MPa, and the temperature is 480°C, remove the nitrogen, and respectively pump methanol aqueous solution (methanol mass concentration is 90%) and soybean oil into the reactor to contact with the catalyst through the feed pump Reaction, methanol and soybean oil feed space velocity is 0.5h -1 , wherein the weight ratio of methanol and soybean oil is 1:1. The reaction products were analyzed by PONA software developed by the Academy of Stone Sciences. The results are shown in Table 1.

Embodiment 3

[0032] Put 10g of catalyst into a fixed-bed reactor, and pretreat the catalyst by steam method for 12h at normal pressure of 480°C, and the mass space velocity of deionized water is 2h -1 . After the treatment finishes, feed nitrogen, control the pressure in the reactor to be 0.2MPa, and the temperature is 350°C, remove the nitrogen, and methanol aqueous solution (methanol mass concentration is 90%) and fatty acid methyl ester are pumped into the reactor and Catalyst contact reaction, feed mass space velocity is 1h -1 , wherein the weight ratio of methanol and fatty acid methyl ester is 2:1. The reaction products were analyzed using the PONA software developed by the Academy of Stone Sciences, and the results are shown in Table 1.

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 belongs to the technical field of chemical engineering, and particularly relates to a method for preparing biology-base aromatics. The method includes feeding methanol and a biology-base material in a mixed manner; enabling the methanol, the biology-base material and catalysts to carry out contact reaction; preparing aromatics by the aid of the methanol and simultaneously preparing aromatics by the aid of the biology-base material by means of cracking and aromatization reaction. The biology-base material is animal or vegetable fat. The method has the advantages that the conversion ratio of the biology-base material is 95-99.99%, the conversion ratio of the methanol is greatly increased and is 95-99.99%, water consumption is greatly reduced, and the aromatics yield can reach 40-70%; the catalysts are free of loading metal, accordingly, the cost can be reduced, reaction operation is simple and convenient, and low-carbon olefin which is a byproduct includes ethylene, propylene and butane and has an excellent economic benefit; biomass raw materials are added, accordingly, a novel path for producing the aromatics is developed, dependence on petroleum raw materials can be reduced, and a novel way for reasonably utilizing biomass resources of China is developed.

Description

technical field [0001] The invention belongs to the technical field of biomass chemical industry, in particular to a preparation method of bio-based aromatic hydrocarbons. Background technique [0002] The "triphenyls" in aromatic hydrocarbons, benzene, toluene and xylene are important basic chemical raw materials and play an irreplaceable role in social development. Today's traditional methods of producing aromatics mainly rely on petrochemical processes such as catalytic reforming of petroleum products and pyrolysis gasoline hydrogenation extraction. However, my country's national conditions are "rich in coal, short of oil, and low in gas". The shortage of oil resources has seriously affected the production of aromatics. With the dwindling of petroleum resources, the route of producing aromatics through petrochemical industry will face challenges. [0003] The oversupply of methanol caused by the upsurge of domestic coal-to-gasoline will increase the new application fiel...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C07C1/20C07C1/213C07C15/02
CPCC07C1/20C07C1/213C07C2529/40C07C15/02
Inventor 姚志龙国玉倩孙培永张胜红孙苏红
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY