This illustration depicts a fluidized bed reactor used in chemical engineering processes. The image shows a vessel containing particulate media (red particles) that are fluidized by an upward flow of gas. This setup is a part of fluidization technology where the solid particles are brought into suspension above the gas inlet. The background is dominated by shades of blue, highlighting the transparent vessel through which the gas-solid interactions can be seen. Predominant red color of particles stand out in the illustration.