Natural gas additive and application thereof

Abstract

The invention relates to a natural gas additive and application thereof. The natural gas additive comprises the following raw materials in parts by weight: 13 parts to 15 parts of barium nitrate, 7 parts to 10 parts of ammonium nitrate, 12 parts to 15 parts of sodium nitrate, 10 parts to 12 parts of sodium nitrite, 17 parts to 23 parts of sodium carbonate, 14 parts to 18 parts of calcium chlorideand 2 parts to 7 parts of ammonium chloride. The natural gas additive disclosed by the invention has excellent performance of safety, reliability, economy, high efficiency, simplicity, easiness, energy saving and environmental protection, can increase the burning speed of natural gas, raise the flame temperature, reduce the material loss, and further reduce the use cost, and still has characteristics of good environmental protection effect, and high safety.

Description

technical field [0001] The invention belongs to the technical field of gas, and in particular relates to a natural gas additive and its application. Background technique [0002] With the rapid development of my country's industrial economy, the social demand for metal gas cutting processing is increasing. At present, the traditional method of oxy-acetylene cutting is widely used in metal gas cutting in my country. As a traditional gas source, acetylene has the advantages of high flame temperature and remarkable thermal processing effect, and is widely used in metal cutting, welding, deformation correction and other fields. However, in the application process of acetylene, there are disadvantages such as poor safety, high energy consumption, high price, and environmental pollution. In recent years, everyone is looking for alternatives to acetylene, including propane, natural gas, and petroleum gas. Natural gas has a light specific gravity, a high lower explosion limit, an...

AI Technical Summary

Problems solved by technology

However, when only natural gas is used for cutting, there are problems such as long preheating and piercing time, slow cutting speed, low flame temperature, poor practical performance and high energy consumption, so some additives are often added and used together with natural gas

However, most of the existing additives are often corrosive, such as hydrogen peroxide, potassium permanganate, water, potassium hydroxide, hydrofluoric acid, perchloric acid, and hydrochloric acid. When used for a long time, the walls of steel cylinders and steel pipes will be damaged. Corrosion, there is a great safety hazard

Other additives are viscous liquid, colloid or solid material, such as nano-alumina, nano-iron oxide, naphthenate (manganese, cerium, cobalt, zirconium, copper, lanthanum, etc.), sodium alkylsulfonate, Urotropine and Tween-80, etc. cannot be completely dissolved in natural gas, and the gas will carry liquid, which will easily swell and damage the rubber film of the pressure reducing valve in the pipe network. Therefore, the additive contains viscous liquid and The jelly cannot be used for a long time

There are also additive products that use ferrocene as a raw material. Ferrocene is a solid and needs to be dissolved in a solvent to become a liquid additive. When the additive is added to the natural gas pipeline network, ferrocene will become solid particles and float in the natural gas , after a period of use, ferrocene solid particles will block the air outlet slot of the torch, thus making the cutting flame unstable, or even breaking the fire or causing backfire

In addition, the existing additives have poor performance. After being added to natural gas, they only reach the flame temperature of propane (≤2700°C), but cannot reach the temperature of the central flame of acetylene (3100°C). Therefore, in specific applications, energy consumption is large and energy saving cannot be achieved. emission reduction