Environment protection additive for welding and cutting natural gas

Abstract

The green additive for welding and cutting natural gas consists of ethanol 5-10 wt%, 2-hexanol 5-10 wt%, 2-hexanone 5-10 wt%, limonene 10-15 wt%, organoplatinum 0.02-0.08 wt%, and C5-C7 isoalkane for the rest. It is liquid with high oil solubility, low boiling point and high solubility in natural gas, and may be added into liquid one gaseous natural gas in any ratio. It is non-toxic and environment friendly, and can raise the combustion temperature of natural gas greatly to 3450 deg.c. In addition, it can lower the use cost of natural gas obviously.

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...