In this paper, the Enhanced Homotopy Perturbation Method (EHPM) has been applied along with the
Boubaker polynomials Expansion Scheme (BPES) to a system of nonlinear partial differential equations which governs
non-isothermal tubular chemical reactors. Theoretical considerations have been discussed in order to illustrate the
reliability of the methods. Comparison of EHPM results with those of BPES showed that both techniques are effective and
Keywords: Enhanced Homotopy Perturbation Method (EHPM), Nonlinear partial differential equations, Mathematical models,
Boubaker Polynomials Expansion Scheme (BPES), Boundary conditions.
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