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FirmGreen Technology Platform

Overview

FirmGreen® uses its patented CO₂ Wash® technology to convert biogas to highly purified methane. Our technology provides an economical path for producing a variety of renewable fuel products from waste gases. CO₂ Wash safely and economically removes contaminants from landfill gas (LFG) or other biogas using liquid carbon dioxide solvent condensed directly from the waste gas.

The CO₂ Wash process uses well-developed conventional unit operations of chemical engineering (heat exchange, compression, refrigeration, absorption), which, taken together, lower the technical risk associated with production of methane-based fuels and chemicals and liquid CO₂.

The system is modular and scalable to accommodate treatment of various gas volumes. Its ability to effectively remove VOCs, NMOCs, and siloxane to 10 parts per billion (ppb) or lower permits complete flexibility for end use of the cleaned methane:  with the CO₂ Wash system, biogas can be upgraded to meet pipeline gas and OEM vehicle fuel specifications.

A typical CO₂ Wash system consists of a pre-treatment skid and the CO₂ Wash module. The system’s compact footprint makes it suitable for locations with limited land available to site a project. CO₂ Wash is a closed loop system with no waste streams to dispose of; recognized by the Ohio EPA as a pollution control device it received aclassification and requires no Air Quality Permit.

Simplicity Makes Your Project 'Shovel Ready'

CO₂ Wash equipment is designed to simplify construction, installation and maintenance of biogas utilization facilities:

• modular, scalable, and skid mounted equipment
• biogas processing unit has small footprint: 20Lx8Wx22H
• lower technical risk: depends on well-developed conventional chemical engineering (heat exchange, compression, refrigeration, absorption)
• simple civil engineering: plumbing & electrical tie-ins
• remote monitoring with Integrated Programmable Logic Controller
• designed for unattended operation

FirmGreen's systems respond to national environmental policy
mandates with respect to best practices for waste utilization,
carbon sequestration and greenhouse gas reduction.

Need an evaluation of your biogas resource? click here to get started

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