Patterns of Flow in Chemical Process Vessels

摘要: Publisher Summary This chapter focuses on two idealized patterns (of all possible flow patterns), plug and back-mix flow. Plug assumes that fluid moves through the vessel “in single file” with no overtaking or mixing earlier later entering fluid. Back-mix in equipment is perfectly mixed uniform composition throughout vessel. All of other than may be called nonideal because for these design methods are not nearly as straightforward those ideal patterns. The treatment discussed divides naturally into parts: fluids fluids. main emphasis falls process equipment. Conversion a reactor can determined either directly from tracer information by use models. distribution residence times gives how long various elements spend but detailed exchange matter within among elements. exact nature surrounding molecules importance. Thus, yields sufficient prediction average concentration effluent. Because lack applications, conversion expressions region models have been developed homogeneous systems. For heterogeneous systems, appropriate found works individual investigators.