With the development and utilization of natural gas and the gradual liberalization of urban gas utilities, Hong Kong capital, private capital, international multinational capital rush in, coupled with the gathering of capital from the original state-owned gas companies that have grown after the restructuring, the competition for resources in the existing urban gas market is becoming increasingly fierce. The proposal of building a resource-saving and environment-friendly society, the opening of the country to the field of urban gas, and the extension of pipeline construction provide a rare opportunity for the development of urban gas in China. With the arrival of the opportunity period of urban gas development, the relationship between natural gas, liquefied natural gas (LNG) and liquefied petroleum gas (LPG) in China's urban gas will be complementary and complementary.

According to the source of energy-saving gas, energy-saving gas can usually be divided into energy-saving natural gas, artificial energy-saving gas, efficiency enhancing natural gas, efficiency enhancing propane, energy-saving liquefied petroleum gas and biomass gas.

1. Efficiency enhancing natural gas: it refers to a new type of gas produced by mixing natural gas and enhancer, which can reduce cutting costs, improve cutting quality, and reduce carbon emissions. After mixing natural gas and booster, the combustion temperature in oxygen can be 400-600 ℃ higher than that of natural gas, which can completely replace acetylene with high energy consumption and high pollution. Shenqi enhancer can completely achieve the purpose of increasing natural gas temperature, reducing cutting cost and improving cutting efficiency.

2. Synergistic propane: it refers to the mixing of propane and enhancer, which can improve the gasification rate of propane, reduce residual liquid, greatly improve the utilization rate of propane and reduce the bottle replacement rate in the process of use.