Process Flow Diagram Reactor

The pfd contains the bulk of the chemical engineering data necessary for the design of a chemical process.

Process flow diagram reactor. Not only is the major equipment such as distillation columns reactors and tanks necessary to be shown in a pfd so is the equipment such as the heat exchangers the pumps reactors mixers etc. Process flow diagrams pfds are used in chemical and process engineering. For all of the diagrams discussed in this chapter there are no universally accepted standards. Schematic flow diagram of a straight through 3 reactor converter claus sulfur recovery unit.

Figure 2 is a very simplified schematic diagram that exemplifies how the process breaks high boiling straight chain alkane paraffin hydrocarbons into smaller straight chain alkanes as well as branched chain alkanes branched alkenes olefins and. Most reactors used in industry approximate the ideal batch reactor pfr or cstr. Generally a process flow diagram shows only the major equipment and doesn t show details. In fact real reactors can be modeled as networks or combinations of multiple plug flow and stirred tank reactors towler and sinnott 2013.

Bod loading rate q so 8 34 453 59 where. The equations for making those calculations are as follows. The claus technology can be divided into two process steps thermal and catalytic. Extending the conceptdraw diagram diagramming and drawing software with process flow diagram symbols samples process diagrams templates and libraries of design elements for creating process and.

One of the initial steps to creating a process flow diagram is to add all of the equipment that is in the plant. Q is the wastewater flow rate into the mbbr reactor in mgd. Examples of real reactors that approximate the flow pattern of ideal reactors are shown in figure 10. A schematic process flow diagram of a basic 2 1 reactor converter superclaus unit is shown below.

Pfds are used for visitor information and new employee training. Tank volume and the volume of liquid in the reactor. Reactor temperature prevent unideal and. The fluid catalytic cracking process breaks large hydrocarbons by their conversion to carbocations which undergo myriad rearrangements.

Major safety concerns are around the plug flow reactor. The process flow diagram pfd represents a quantum step up from the bfd in terms of the amount of information that it contains. Polyethylene plant a process flow diagram product feeds vent streams recycle feeds flare feeds fuel burning equipment pm pollution control devices polymerization pa pe 202 purging and vent recovery pa pe 203 extrusion pelletizing pa pe 204 ethylene inert hydrocarbon nitrogen polyethylene hydrogen nitrogen pa pe 301 pa pe 302 pa.