Air Products and Chemicals, Inc. (APD) announced a significant investment exceeding $70 million to expand its manufacturing and logistics center in Maryland Heights, near St. Louis, MO.This investment, the largest ever for Air Products Membrane Solutions, is driven by increasing demand for its products in biogas and hydrogen recovery and the aerospace industry's need for nitrogen and the marine industry's push for cleaner fuels.The company expressed enthusiasm about the expansion, stating that it will signi ...