Arbor Energy ($12M for biomass carbon removal and storage while producing clean electricity and water)

Arbor Energy, an American climate tech company founded in 2022, develops a modular, compact system that converts biomass into carbon-negative electricity and clean water, while also permanently removing CO₂ from the atmosphere via a process known as Biomass Carbon Removal and Storage (BiCRS). Arbor’s modular and compact carbon removal system has an inherent carbon capture efficiency of nearly 100%, making it a promising method for reversing humanity's climate footprint.

Challenges: carbon emissions and BiCRS

Carbon emissions

Since the early 1900s, carbon dioxide (CO₂) levels in the atmosphere have increased by 50% due to human activities. When fossil fuels (such as coal, oil, and natural gas) are burned for energy production, transportation, and industrial processes, CO₂ is released into the atmosphere. This excess CO₂ acts as a greenhouse gas, trapping heat and causing the air and ocean temperatures to rise. CO₂ emissions play a crucial role in driving climate change.

This warming effect has caused the global average temperature to rise by about 1.1 ºC since the pre-industrial period. This has led to rising in the frequency and intensity of extreme weather events, melting of polar ice caps and glaciers and rising sea levels, shifts in species ranges and increased risk of species extinction, agriculture and food security,  and ocean acidification.

To mitigate these impacts, the Paris Agreement aims to limit global warming to well below 2 ºC above pre-industrial levels. The Intergovernmental Panel on Climate Change (IPCC) estimates that a “carbon budget” of about 500 GtCO₂, which corresponds to about ten years at current emission rates, provides a 66% chance of limiting global warming to 1.5 ºC.

Biomass Carbon Removal and Storage (BiCRS)

Biomass Carbon Removal and Storage (BiCRS) is different from Direct Air Capture (DAC) technology in that it lets plants do the hard work of scrubbing CO₂ out of the atmosphere through photosynthesis. It turns biomass into biochar or CO₂ that can be sequestered permanently, thereby removing CO₂ from the air.

One example of BiCRS technology is Bioenergy with Carbon Capture and Storage (BECCS). During BECCS, biomass is converted into bioenergy while carbon is captured and stored. The carbon in the biomass comes from CO₂ taken from the air during photosynthesis. Biomass is processed via combustion, pyrolysis, or other conversion methods. During the process, energy is extracted in useful forms of electricity, heat, etc., and  CO₂ or biochar produced can be sequestered geologically or disposed of in landfills, respectively.

Arbor Energy Technology

Arbor Energy (Arbor) has developed a modular, compact system that combines the technologies of torrefaction, oxy-gasification, oxy-combustion, and supercritical CO₂ power cycles to efficiently convert biomass to a stream of high-purity, supercritical CO₂. The supercritical CO₂ stream can be directly injected into class VI wells, resulting in the permanent carbon sequestration. Carbon-negative electricity and clean water are also produced during the processes. Electricity generated can be used to power the facilities, and any surplus can be sold back to the grid.

Arbor system

The diagram below depicts the Arbor system for Biomass Carbon Removal and Storage (BiCRS).

Sorry, you need a CO2 membership to view the content.

Scroll to Top