Carbon dioxide (CO₂) is a valuable and multifunctional resource that is released as a by-product or even waste product in a variety of industrial processes.
Instead of releasing CO₂ unused into the atmosphere and thus increasing CO₂ emissions, we separate the CO₂ from flue gases, residual gases, or exhaust gases, process it, and liquefy it.
With ICEBERG.ENGINEERING liquefaction technology, liquid CO2 (LCO2) can be processed from technical quality to EIGA food standard and then used or stored in a variety of ways.
TECHNICAL HIGHLIGHTS
CO2 RECOVERY FROM BIOGAS UPGRADING
USE OF BIOGENIC CO2
Biogas consists mainly of methane and carbon dioxide. During the process of converting it into biomethane, CO2-rich lean gas (“off-gas”) is separated and usually released into the atmosphere. By utilizing this CO2 of biogenic origin, CO2 from fossil sources can be replaced, thereby reducing CO2 emissions.
GAS TREATMENT AND PURIFICATION
The CO2 liquefaction plants from ICEBERG.ENGINEERING take the separated CO2 and clean it thoroughly before liquefaction using cryogenic technology.
The cleaning process removes volatile organic compounds, including all odors and flavors, sulfur and sulfur compounds, and inert gases.
BIO-LCO2 AS A BUSINESS MODEL
Depending on requirements, the end product can be purified to food purity in accordance with EIGA and then sold on the market.
In addition to the income from the sale of LCO2, CO2 recovery improves the GHG quota and generates further income, which improves the economic efficiency of biogas upgrading.
COMPATIBLE BIOGAS UPGRADING SYSTEMS
PROCESS ENGINEERING
GAS TREATMENT
- Gas treatment individually designed according to the composition of the residual gas
- Gas qualities according to customer requirements up to EIGA food grade standard achievable
- Multi-stage gas treatment for the removal of a wide variety of contaminants
- Removal of organic impurities (volatile organic compounds, odors, and flavors such as acetone or acetaldehyde, etc.)
- Removal of sulfur-containing compounds (sulfur, hydrogen sulfide, sulfides, etc.)
- Removal of inert gases (oxygen, nitrogen, methane, etc.)
CO2 LIQUEFACTION
- Compression of the treated gas to process pressure
- Liquefaction using a refrigeration system at low temperatures
- Final fine cleaning during liquefaction
- Compact design thanks to skid design
- Liquefaction capacities from 700-3,175 kg/h LCO2
- Gas quality up to EIGA food quality
- Subsequent storage in storage tanks
