Many production processes can be further optimised through the efficient use of gases. Technical gases are used around the world, around the clock and in all sectors. No matter whether you are active in the chemical, food, metallurgical or processing industries - BOC is always at your side with an extensive product portfolio for every need. Technical gases are seen as all gases and gas mixtures supplied for applications in technology and research. The most common are oxygen, nitrogen, argon, carbon dioxide, acetylene, helium, propane and hydrogen and their mixtures. Medical and specialty gases are also included in the technical gases category, but these take on a special role, as more stringent requirements are placed on their purity, composition and traceability. Technical gases from BOC are used in particular in metallurgical processes, chemical industries, the food industry, environmental protection, the manufacture of glass and electronic components, construction, the pharmaceutical industry and research and development.
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There is a wide variety of welding processes that are very different. For this reason, BOC Gas has made it its business to provide the optimum gases and gas mixtures for the individual welding techniques, also in the BOC Gas Online Store. Special cutting and welding gases are required for each process. The most common welding processes are MIG, TIG and MAG welding. These arc welding processes usually require shielding gases such as argon, helium or corresponding gas mixtures. Whether classic welding technology, thermal cutting, laser cutting, plasma cutting, various coating processes and much more, our product groups are used in a wide range of applications. BOC's welding and cutting gases include ARGOSHIELD®, Stainshield®, Alushield®, Specshield®, and Argoplas®. Backing gases, acetylene, nitrogen, hydrogen, oxygen, ethene, methane, propane and propellant gases in their various purities also meet the high quality demands of our customers.
The food industry places the highest demands on gases that serve as food additives. These legal requirements are met in detail by BOC Australia in order to be included in the category for food-grade gases. Cellamix is one of those gas mixtures specially developed for this area of application. In addition, BOC Australia have developed a range of application-specific packaging solutions under our MAPAX® brand. Synergizing the vast knowledge we have gained in food science, gas mixtures and packaging, MAPAX extends shelf life - the natural way. We have also developed numerous gas innovations that help meet increasingly stringent environmental legislation and accelerate time to market in the pharmaceutical industry.
For safe gas withdrawal, BOC offers you high-quality regulators, professional connection accessories, gas preheaters and more. From single cylinder pressure regulators, pressure regulators suitable for food gas as well as main pressure regulators, you will find various designs for different gas types in the BOC Online Store - perfectly matched to your area of application. From quick connectors and cylinder wrenches to adjustable hose clamps and hoses, cylinder trolleys, gas detection and gas cylinder brackets for wall mounting. BOC ensures that your work can be carried out safely and with the best equipment. The right gas accessories for everyday gas handling are essential, for safe and reliable work with gas, gas cylinders and welding processes. Discover our range in the BOC Australia Online Store.
1. Economic advantages
The temperature of LNG is about -162 °C, the pressure is about 0.1 MPa, the density is about 423 kg/m3, and the volume after gasification is about 600-624 times that of the liquid volume. 2.5 times. The onboard gas cylinders of large LNG trucks can travel continuously for 1 000-1 300 km with one refill, which is very suitable for long-distance transportation. The 410L vehicle-mounted gas cylinder can travel 400-500 km continuously in urban areas with one refill, and about 700 km with one refill on expressways. It can be seen that compared with the existing CNG and LPG vehicles, LNG vehicles have greatly improved the driving mileage of vehicles.
2. Security
The ignition point of LNG is 650°C, and the explosion limit is 5% to 15%. After gasification, the density is small, and a slight leakage will immediately volatilize and diffuse; while the ignition point of LPG is 466°C, and the explosion limit is 2.4% to 9.5%. , the density after gasification is greater than that of air, and it is not easy to spread after leakage; the ignition point of gasoline is 427 ° C, and the explosion limit is 1.0% to 7.6%; the ignition point of diesel oil is 260 ° C, and the explosion limit is 0.5% to 4.1%. [819]. It can be seen that cars loaded with LNG vehicle cylinders are safer than LPG, gasoline and diesel cars.
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3. Environmental protection
The methane content (molar fraction) in LNG is more than 90%, the sulfur and water are removed, and its composition is purer than CNG. Compared with fuel vehicles, the emission of harmful substances from vehicles loaded with LNG vehicle cylinders is reduced by about 85%. Known as a true eco-friendly car.
4. No-emission gas filling can be realized
After the implementation of gas-free refueling, the release of natural gas can be effectively reduced, fuel is saved, and the possibility of fire is reduced at the same time.
Five, can be used for vehicle refrigeration
The use of LNG can also change the design thinking of previous automotive air conditioners. At present, the automobile air conditioner is developed based on the principle of compression refrigeration, and its structure is complex, including the evaporator, compressor, condenser, control relay, electronic vacuum valve, heater, speed vacuum stabilizer, filter dryer, motor, and fan, etc., these devices all require the car engine to provide power, which will inevitably reduce the effective power of the car. If the LNG in the LNG vehicle cylinder is used as fuel, and the cold energy released by its gasification is used to refrigerate and cool the engine, the efficiency of the vehicle will be greatly improved.
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