There are several reasons why tubular reactors are preferred in catalytic processes: 1. High Surface Area: Tubular reactors can be packed with catalyst particles or have catalyst-coated walls, providing a large surface area for the reaction. 2. Efficient Heat Transfer: The design allows for efficient heat management, which is critical in exothermic or endothermic reactions. 3. Scalability: Tubular reactors can be easily scaled up or down, making them suitable for both pilot and commercial-scale operations. 4. Controlled Residence Time: The plug flow nature ensures that each element of the fluid experiences the same residence time, which is beneficial for reactions requiring precise timing.