Ternary catalysis refers to the catalytic conversion of harmful gases such as CO, HC, and NOx emitted by automobile exhaust into non-harmful carbon dioxide, water, and nitrogen through oxidation and reduction. The catalytic converter is mainly used, and the carrier component of the catalytic converter is a porous ceramic material installed in a special exhaust pipe. It is called a carrier because it does not participate in the catalytic reaction itself, but is covered with a layer of precious metals such as platinum, rhodium, and palladium. It is the most important external cleaning device installed in the exhaust system of automobiles.
principle
The working principle of the three-way catalytic converter is that when a high-temperature automotive exhaust passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activity of the three gases of CO, HC, and NOx, and promote a certain oxidation-reduction chemical reaction. Among them, CO is oxidized to a colorless, non-toxic carbon dioxide gas at high temperatures; HC compounds are oxidized to water (H20) and carbon dioxide at high temperatures; NOx is reduced to nitrogen and oxygen. The three harmful gases become harmless gases, so that the automobile exhaust can be purified.
The three-way catalytic reactor resembles a muffler. Its outside is made of a double stainless steel sheet. In the double sheet sandwiched with insulation material - asbestos fiber mat. The interior is equipped with a scavenger in the middle of the mesh partition. The scavenger consists of a carrier and a catalyst. The carrier is generally made of aluminum oxide and has a spherical shape, a polygonal shape, a mesh partition, and the like. Detergents are actually catalytic, also known as catalysts. Catalysts used are platinum, rhodium, and palladium. Spraying one of these on a carrier constitutes a scavenger.
Generally, the three-way catalyst does not need to be cleaned. If the three-way catalytic oxidation is severe, it will be directly replaced. Because the operating temperature of the three-way catalyst is about 350 degrees, it is better not to have liquid water remaining, so the cleaning is not good.
The spout pouch is also called the doypack or Stand Up Pouch with spout.
English name: spout pouch.
The spout pouch is an emerging beverage and jelly bag developed on the basis of the stand-up bag.
The structure of the spout pouch is mainly divided into two parts: the spout(cap) and the stand-up pouch. The stand up pouch portion is identical in construction to the conventional flat bottom pouch, but composite materials are generally used to meet the requirements of different food packaging. The spout part can be regarded as a special bottle mouth with a straw. The two parts are closely combined to form a beverage package that supports sucking, and since it is a flexible package, there is no difficulty in sucking, and the contents are not easily shaken after sealing, which is an ideal new type of beverage packaging.
The biggest advantage of the spout pouch over common packaging forms is portability. The spout pouch can be conveniently placed in a backpack or even a pocket, and can be reduced in size as the contents are reduced, making it easier to carry. At present, the soft drink packaging on the market is mainly in the form of PET bottles, composite aluminum paper bags and beverage cans. In today's increasingly homogenized competition, the improvement of packaging is undoubtedly one of the powerful means of differentiated competition. The spout pouch combines the repetitive packaging of PET bottles and the composite aluminum paper bag. At the same time, it also has the advantage that traditional beverage packaging can't match in printing performance. Of course, since the spout pouch belongs to the category of flexible packaging, it is not suitable for the packaging of carbonated beverages at present, but it has unique advantages in juice, dairy products, health drinks, jelly foods, Chemicals , daily necessities.
By providing a better packaging alternative, you`re proving that your business is thoughtful, innovative, and focused on the customer experience.
Features
• Moisture and gas barrier properties
• Heat resistant outer layer for improved process ability.
• Easy usage and lightweight
• Customized the spout pouch to attract the customers.
• Easy to store and re-closable quality which helps customer convenience.
• On shelf product differentiation
• Space saver during transport.
Application
Spout pouches can be applied to beverage industries, or any detergents, garden products, etc., especially all of the liquid products.
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Guangdong Danqing Printing Co., Ltd. , https://www.spoutpouchfactory.com