Mass Balance in the Haber Process

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

Consider the high-pressure synthesis of ammonia (), known as the Haber process. We use the Peng–Robinson equation of state and the reaction-coordinate method to compute the extent of reaction, in moles of per unit time (e.g., hours), for user-set values of the reactor temperature in degrees Kelvin and pressure in bars. This Demonstration carries out the mass balance around the reactor and splitter in order to compute the amount of ammonia produced when chemical equilibrium is reached in the reactor and in the recycle stream. We assume that: (1) the splitter separates the product (i.e., ammonia) perfectly from the reactants (i.e., nitrogen and hydrogen); and (2) the fresh feed contains stoichiometric amounts of nitrogen and hydrogen. As expected from Le Chatelier's principle, the amount of ammonia produced is greater at low temperatures and high pressures.

Contributed by: Housam Binous, Mohammad Mozahar Hossain, and Ahmed Bellagi (October 2015)
Open content licensed under CC BY-NC-SA




Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.