From a layout point of view, reactors are mostly a specialized type of tank, either a catalyst bed or a stirred tank. Both are often (but not always) within vertically oriented steel pressure vessels operating at high temperatures and pressures. The high temperature and pressures commonly found inside reactors, as well as their potential for reaction runaway make them potentially very hazardous items, especially in the case of large stirred tank reactors which might contain significant inventories.
Reactor; vessel; batch; continuous; stirred tank; fluidized bed; packed bed; plug flow; CSTR
There are two broad classes of reactors: beds, and stirred tanks. Both are often (but not always) ...