In this case, the Shurtan gas-chemical complex during the production of polyethylene, gives the characteristics of aluminum oxide
used in the purification of polyethylene from the residues of Sigler-Natta catalysts
A comparison is made of finite-difference schemes with the exact solution of a parabolic partial differential equation. A stability analysis
has also been carried out. To solve the parabolic equation, one-step and twostep finite-difference methods are used.