Preparation method of dimethyl ether gas nono rare earth combustion improver

A nano-rare earth and combustion-supporting agent technology, which is applied in the direction of fuel, gas fuel, and petroleum industry, can solve the problems of shortened service time, unstable combustion, and low liquefaction pressure, and achieve the goal of increasing combustion value, low cost, and reduced gas consumption Effect

Active Publication Date: 2013-12-18
CHANGZHOU GEOQUIN NANO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Low liquefaction pressure
[0009] However, there are still deficiencies in dimethyl ether, mainly in the relatively high latent heat of vaporization. If pure dimethyl ether is used as bottled fuel, the combustion is unstable and the use time will be shortened.

Method used

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  • Preparation method of dimethyl ether gas nono rare earth combustion improver
  • Preparation method of dimethyl ether gas nono rare earth combustion improver
  • Preparation method of dimethyl ether gas nono rare earth combustion improver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Prepare mixed solution A of neodymium chloride and lanthanum chloride, wherein the concentrations of neodymium chloride and lanthanum chloride are respectively 0.2mol / L;

[0024] 2. Prepare ammonia water with a concentration of 0.2mol / L, add the prepared ammonia water into mixed solution A and stir at a stirring speed of 1200r / min; stirring time is 3 hours, pH=5; translucent mixture B is obtained;

[0025] 3. Put B into a hydrothermal reaction kettle, the temperature of the reaction kettle is 180° C., and the reaction time is 12 hours to obtain nano-crystal seeds C of neodymium oxide and lanthanum oxide; the particle size of the nano-crystal seeds of neodymium oxide and lanthanum oxide is 5 nm as detected by transmission electron microscopy.

[0026] 4. Configure the concentration of cerium chloride solution to be 0.6mol / L, take ethylene glycol as the microemulsion carrier, the volume ratio of ethylene glycol and cerium chloride aqueous solution is 1:0.5, add cerium c...

Embodiment 2

[0029] 1. Prepare mixed solution A of neodymium chloride and lanthanum chloride, wherein the concentrations of neodymium chloride and lanthanum chloride are respectively 0.4mol / L;

[0030] 2. Prepare ammonia water with a concentration of 0.5mol / L, add the prepared ammonia water into mixed solution A and stir at a stirring speed of 1300r / min; stirring time is 4 hours, pH=5.5; translucent mixture B is obtained;

[0031] 3. Put B into a hydrothermal reaction kettle, the temperature of the reaction kettle is 220°C, and the reaction time is 18 hours to obtain nanocrystal seeds C of neodymium oxide and lanthanum oxide; the particle size of nanocrystal seeds of neodymium oxide and lanthanum oxide is 6nm as detected by transmission electron microscope;

[0032] 4. Configure the concentration of cerium chloride solution to be 1mol / L, take ethylene glycol as the microemulsion carrier, the volume ratio of ethylene glycol and cerium chloride aqueous solution is 1:1, add cerium chloride sol...

Embodiment 3

[0035] 1. Prepare mixed solution A of neodymium chloride and lanthanum chloride, wherein the concentrations of neodymium chloride and lanthanum chloride are respectively 0.6mol / L;

[0036] 2. Prepare ammonia water with a concentration of 0.8mol / L, add the prepared ammonia water into mixed solution A and stir at a stirring speed of 1500r / min; stirring time is 6h, PH=6; translucent mixture B is obtained;

[0037] 3. Put B into a hydrothermal reaction kettle, the temperature of the reaction kettle is 250°C, and the reaction time is 24 hours to obtain nanocrystal seeds C of neodymium oxide and lanthanum oxide; the particle size of nanocrystal seeds of neodymium oxide and lanthanum oxide is 8nm as detected by transmission electron microscopy

[0038] 4. Configure the concentration of cerium chloride solution to be 1.2mol / L, take ethylene glycol as the microemulsion carrier, the volume ratio of ethylene glycol and cerium chloride aqueous solution is 1:1.8, add cerium chloride solutio...

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Abstract

The invention relates to a preparation method of a dimethyl ether gas nono rare earth combustion improver, comprising the following steps: preparing lanthanum neodymium chloride mixed solution to obtain mixed solution A; preparing ammonia water, and adding the prepared ammonia water into the mixture A to stir and obtain semitransparent mixture B; putting mixture B into a hydrothermal reaction kettle to perform hydrothermal reaction and obtain lanthanum neodymium oxide nano seed crystal C; detecting particle size of the lanthanum neodymium oxide nano seed crystal as 5-8 nm through a transmission electron microscope; preparing cerium chloride solution, taking ethylene glycol as micro emulsion carrier, adding the cerium chloride solution into the ethylene glycol, and stirring to obtain mixed solution D; adding seed crystal C into solution D, heating and stirring to obtain the dimethyl ether gas nono rare earth combustion improver. According to the preparation of the dimethyl ether gas nono rare earth combustion improver provided by the invention, cost is low; the method is suitable for industrial production; technologies are simple; the dimethyl ether gas combustion improver prepared by the method has high combustion efficiency; and dimethyl ether is gasified fully.

Description

technical field [0001] The invention relates to a preparation method of a nano-rare-earth combustion accelerant, in particular to a preparation method of a nano-rare-earth combustion accelerant for dimethyl ether gas. Background technique [0002] The secondary clean energy dimethyl ether, which uses coal and natural gas as the basic raw material to replace petroleum, has comprehensive development advantages, and its secondary energy utilization rate is the highest. At present, the one-step method of producing DME from syngas is basically mature, and has great advantages in terms of investment and cost. It can not only effectively and rationally use energy resources, but also benefit the development of energy, chemical and multi-industrial systems. [0003] As an emerging basic chemical raw material, dimethyl ether is much better than propane, butane and other petrochemicals in its application range due to its good characteristics of easy compression, condensation and vapori...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/00
Inventor 施丽萍
Owner CHANGZHOU GEOQUIN NANO NEW MATERIALS
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