Maximizing Resource Efficiency in Green Chemistry & Engineering
Be Efficient
Reduce
Separation and purification operations should be designed to minimize energy consumption and materials use**
Minimize
Energy Requirements should be recognized for their environmental and economic impacts and should be minimized. Synthetic methods should be conducted at ambient temperature and pressure*
Optimize
Products, processes, and systems should be designed to maximize mass, energy, space, and time efficiency**
Integrate
Design of products, processes, and systems must include integration and interconnectivity with available energy and materials flows**
Prevent
Strive to prevent waste***
Measure
Mass Balances
Establish full mass balances for a process****
Heat & Mass Transfer
Anticipate heat and mass transfer limitations****
Conversion
Report conversions, selectivities, and productivities****
Byproduct Formation
Identify and quantify by-products****
Utilities
Quantify and minimize the use of utilities****
Design
Output-Pulled vs. Input-Pulled
Products, processes and systems should be “output pulled” rather than “input pushed” through the use of energy and materials**
Atom Economy
Synthetic methods should be designed to maximize the incorporation of all materials used in the process into the final product*
Find Alternatives
The use of auxiliary substances (e.g., solvents, separation agents) should be made unnecessary whenever possible and innocuous when used*
Reduce Derivatives
Unnecessary derivatization (blocking group, protection-deprotection, and temporary modification of physical / chemical processes) should be avoided whenever possible*
Use Catalysis
Catalytic reagents (as selective as possible) are superior to stoichiometric reagents*
Be Sustainable
Minimize
Minimize depletion of natural resources.***
Conserve & Improve
Conserve and improve natural ecosystems while protecting human health and well-being ***
References
** Anastas, P. T.; Zimmerman, J. B. Design through the Twelve Principles of Green Engineering. Environ. Sci. Technol. 2003, 37(5), 94A-101A.
*** Abraham, M. A.; Nguyen, N. “Green Engineering: Defining the Principles” - Results from the San Destin Conference, Environmental Progress, 2003, 22(4), 233-236.
****Winterton, N. Twelve more green chemistry principles? Green Chem. 2001, 3, G73-G75.
ACS GCI's Green Chemistry and Engineering Conference
The 2025 Green Chemistry & Engineering Conference will be held June 23-26 in Pittsburgh, PA, with the theme Good Health & Well-Being Through Sustainable Chemistry.