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Environment-friendly additive for natural gas welding gas

An additive, welding and cutting gas technology, applied in the direction of gas fuel, petroleum industry, fuel, etc., can solve the problems of complex natural gas welding and cutting gas process, influence on popularization and application, inconvenient use, etc., achieve good environmental protection performance, reduce use cost, Ease of operation

Inactive Publication Date: 2016-08-24
CHONGQING AOGEMEI GAS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the process of making the natural gas welding and cutting gas containing this free initiator is complex and inconvenient to use, which affects its popularization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: This additive is made of ethanol, 2-hexanol, 2-hexanone, limonene, organic platinum and C 5 Isoparaffin composition, and the weight percent of each component is: ethanol 6%, 2-hexanol 8%, 2-hexanone 8%, limonene 12%, tetrakistriphenylphosphine platinum 0.02%, C 5 Isoparaffin 65.98%. That is, in the present embodiment, get ethanol 6Kg, 2-hexanol 8Kg, 2-hexanone 8Kg, limonene 12Kg, tetrakistriphenylphosphine platinum 20g, C 5 65.98Kg of isoparaffins are mixed with each other to obtain 100Kg of additives; then, they are directly added to liquid natural gas at a weight ratio of 0.5% to 1%. Here, they are added at a ratio of 1% by weight, or added to In the gas phase natural gas, the required natural gas welding and cutting gas can be obtained. And it has been shown from actual tests that the combustion flame temperature of the welding and cutting gas produced by adding the above additives to liquid natural gas can be as high as 3190°C. The welding and cutti...

Embodiment 2

[0011] Embodiment 2, the difference between this embodiment and the above-mentioned first embodiment is: the weight percentage of each component is, ethanol 5%, 2-hexanol 5%, 2-hexanone 5%, limonene 10%, four three Phenylphosphine platinum 0.06%, C 5 Isoparaffin 74.94%. Get ethanol 5Kg, 2-hexanol 5Kg, 2-hexanone 5Kg, limonene 10Kg, tetrakistriphenylphosphine platinum 60g, C 5 74.94Kg of isoparaffins are mixed with each other to obtain 100Kg of additives; then, 0.5% by weight is directly added to liquid natural gas, or added to gaseous natural gas in the same proportion to obtain the required natural gas welding and cutting gas. Tests have proved that the combustion flame temperature of the welding and cutting gas formed by adding the above additives to liquid natural gas can be as high as 2980°C. However, the combustion flame temperature of the welding and cutting gas formed after the above-mentioned additives are added to the gaseous natural gas is as high as 3090°C.

Embodiment 3

[0012] Embodiment 3, the difference between this embodiment and the above-mentioned first embodiment is: the weight percentage of each component is, ethanol 10%, 2-hexanol 10%, 2-hexanone 10%, limonene 15%, four three Phenylphosphine platinum 0.08%, C 5 Isoparaffin 54.92%. Get ethanol 10Kg, 2-hexanol 10Kg, 2-hexanone 10Kg, limonene 15Kg, tetrakistriphenylphosphine platinum 80g, C 5 54.92Kg of isoparaffins are mixed with each other to obtain 100Kg of additives; then, 0.8% by weight is directly added to liquid natural gas, or added to gaseous natural gas in the same proportion to obtain the required natural gas welding and cutting gas. The test shows that the combustion flame temperature of the welding and cutting gas formed after the above additives are added to liquid natural gas can be as high as 3320°C. The flame temperature of the welding and cutting gas formed by adding the above additives to the gas phase natural gas is as high as 3450°C.

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PUM

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Abstract

The invention discloses an environment-friendly additive for natural gas welding gas. The additive is composed of the following components in percentage by weight: 5 to 10% of ethanol, 5 to 10% of 2-hexanol, 5 to 10% of 2-hexanone, 10 to 15% of limonene, 0.02 to 0.08% of organic platinum, and the balance being at least one of C5-C7 isoparaffin; wherein the organic platinum is at least one of triphenyl phosphine platinum, triphenyl phosphine platinum chloride, diamino-cyclohexane platinum oxalate, bis(benzonitrile) platinum dichloride, and ethylene diamine platinum. The using cost of natural gas welding gas is prominently reduced, moreover, the additive is harmless to the environment, and thus the additive is worthy to popularize and use in various corresponding occasions.

Description

technical field [0001] The invention relates to an additive, in particular to an additive for increasing the flame temperature of the natural gas, so that the natural gas can be used as a welding and cutting gas. Background technique [0002] At present, in metal cutting and welding operations, acetylene is replaced by petroleum liquefied petroleum gas or natural gas due to defects such as poor safety performance, high energy consumption, high price, and environmental pollution. Especially natural gas, not only because its price is lower than that of liquefied petroleum gas, but also not subject to safety restrictions on ventilation conditions, is an ideal alternative gas source for acetylene. However, due to the low calorific value of natural gas, the flame temperature in oxygen is only 2538°C. In order to improve the combustion temperature of natural gas, people try to design various additives, such a mixture is disclosed in "A Combustion-Supporting Additive for Raising t...

Claims

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Application Information

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IPC IPC(8): C10L3/00
Inventor 刘德举张雪梅
Owner CHONGQING AOGEMEI GAS CO LTD
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