There are several reasons why replacing a catalyst might be necessary:
Performance Improvement: Newer catalysts may offer higher reaction rates or better selectivity. Cost Reduction: Some catalysts are expensive or scarce. Replacing them with more abundant or less expensive alternatives can significantly reduce costs. Environmental Concerns: Some catalysts contain toxic or environmentally harmful substances. Replacements can lead to greener and safer chemical processes. Deactivation and Poisoning: Over time, catalysts can become deactivated or poisoned by impurities. Replacement ensures continuous and efficient operation.
