What type of container consists of an inner gas-containing component reinforced with an outer layer?

The correct answer is composite container. This type of container combines materials to optimize performance and safety when storing gases under pressure. The inner component of a composite container is designed to hold the gas—often made from materials that can withstand high pressures—while the outer layer provides additional strength and durability.

Composite containers use a combination of materials, such as fiberglass or carbon fiber within a resin matrix, to create a lightweight yet strong design, which is particularly beneficial for applications involving CNG (Compressed Natural Gas). These containers are engineered to prevent leaks and withstand significant pressure, making them an essential choice for applications where weight and efficiency play critical roles.

Pressure vessels are a general classification that refers to any container designed to hold gases or liquids at a pressure substantially different from the ambient pressure, but do not specify the layered structure that composite containers do.

CNG tanks are designed specifically for storing compressed natural gas, but this term does not inherently indicate the use of composite materials or the inner and outer layer structure that is characteristic of composite containers.

Hybrid containers typically refer to those that incorporate a mix of different materials, but they might not adhere specifically to the inner and outer layer concept focused on gas containment.