emissions from mobile and stationary sources, materials recycling, separation and conversion technologies for waste reduction, and the cleanup of contaminated sites.

Vignettes discuss selected topics in greater depth; these include materials of the future, catalytic cracking for the production of high-octane gasoline, angiotensin-converting enzyme inhibitors for combating hypertension and chronic heart failure, the microelectronics factory of the future, and a new type of catalyst to meet the “ultralow ” automobile tailpipe emission standards recently enacted in several states.

In many cases, commercial technologies are directly connected with the underlying chemical or chemical engineering research. Most of the national critical technologies either directly depend on, or are substantially influenced by, research in chemistry or chemical engineering.

Chemical and chemical engineering research relies on an effective infrastructure that successfully converts research results into commercial technologies. This infrastructure utilizes both public and private research funding. Maintaining and strengthening the infrastructure of chemical and chemical engineering research are key to sustaining and advancing our national critical technologies.

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