Beyond Solar Fuels: Renewable Energy-Driven Chemistry.

Area of Science:

• Chemical Engineering
• Sustainable Chemistry
• Energy Transition

Background:

• Industrial chemical production heavily relies on fossil feedstocks, contributing significantly to greenhouse gas emissions.
• The transition to renewable energy (RE) is crucial for decarbonizing the chemical sector.
• Current approaches often focus on solar fuels, but a broader strategy is needed.

Purpose of the Study:

• To discuss the feasibility of decarbonized industrial chemical production using renewable energy sources.
• To explore the substitution of fossil feedstocks with renewable energy in chemical manufacturing.
• To identify key challenges and opportunities in developing a "solar-driven" or "RE-driven" chemistry.

Main Methods:

• Reviewing current chemical production processes and their reliance on fossil feedstocks.
• Analyzing the potential of renewable energy sources to power chemical synthesis.
• Identifying research and development needs for novel RE-driven processes.

Main Results:

• The use of fossil feedstocks for energy is a primary driver of greenhouse gas emissions in chemical production.
• A shift to "solar-driven" or "RE-driven" chemistry is proposed as a future scenario.
• Implementation requires producing base raw materials (olefins, methanol, ammonia) using RE-driven processes.

Conclusions:

• Achieving RE-driven chemistry necessitates producing foundational chemicals from renewable sources.
• Developing novel RE-driven routes that enhance process and energy efficiency is critical.
• Significant reduction in the number of process steps is a key goal for intensified RE-driven chemical production.