Catalyzing Organic Reactions Using Environmentally Friendly Green Catalysts: An Applied Study on Alkylation Reactions

Abstract

Amid the global shift towards green chemistry and the growing demand to reduce the environmental impact of chemical processes, this study investigates the effectiveness of a modified natural zeolite catalyst as a sustainable alternative to conventional, toxic alkylation catalysts such as aluminum chloride. A series of controlled laboratory experiments were conducted to compare the green and traditional catalysts in terms of reaction yield, product purity, ease of catalyst separation, environmental safety, economic feasibility, and catalyst reusability.

The experimental results revealed that the green catalyst achieved a yield of 84% ± 1.2 compared to 88% ± 1.5 for aluminum chloride. The product purity was 91% ± 0.8 with the green catalyst versus 93% ± 0.6 with the conventional catalyst. Additionally, the green catalyst demonstrated excellent ease of recovery and could be reused for up to three consecutive cycles with only a 3–4% decrease in activity. Analytical techniques including Gas Chromatography–Mass Spectrometry (GC-MS), Fourier Transform Infrared Spectroscopy (FTIR), and Proton Nuclear Magnetic Resonance (¹H-NMR) confirmed the identity and purity of the reaction product, ethylbenzene.

This research highlights the practical potential of natural zeolite-based catalysts in promoting greener chemical synthesis. The findings support the adoption of green catalytic systems as viable, eco-friendly alternatives for industrial organic transformations, particularly in alkylation reactions.