CO2-Recovery Plant 55 EN/2020
Identify areas where CO2 can accumulate in i.e., locations where CO2 is stored and
used and ventilate and monitor CO2 in these areas. Be aware of confined spaces, low
laying areas and areas where CO2 is vented. Use CO2 detectors with audible and visual
alarms and make sure posted warning signs instruct workers how to act in case of
alarms.
Use protective equipment.
Wear eye protection and gloves when handling CO2 and wear safety boots and leather
apron when handling liquid CO2 and dry ice. Additional personal protection may include
personal monitors, hearing protection and breathing apparatus.
Keep the CO2 systems unchanged and maintained.
Changes to the system can create leaks or other hazardous situations. Do not modify
CO2 systems including pipes and storage tanks. System changes must be designed and
managed by the supplier or other qualified people. Keep the CO2 system maintained
according to vendors maintenance recommendations.
The CO2 recapture system consists of various components, such as compressors,
pipelines, and storage tanks, which could malfunction. Such failures can lead to the
release of CO2 gas, posing risks to workers and creating asphyxiation hazards in poorly
ventilated areas. Regular inspections, maintenance, and testing are necessary to ensure
the proper functioning of the system and identify and address any potential issues.
Please follow the DALUM manual and the daily and weekly checklists for the equipment.
DALUM recommends the installation of CO2 alarm in fermentation areas and the
location where a DALUM CO2 Unit is installed if not efficiently vented. Do not enter
rooms with CO2 concentrations above 1,5% other than to vent area (Low CO2 Alarm),
and do not enter room with CO2 concentrations above 3% (high alarm) without breathing
aid. Breathing filters give no protection.
9.3 Pressure hazard:
The DALUM CO2 Recovery Unit operates at internal pressures of up to 45 bars. This
pressure can be dangerous if it is not properly controlled and managed. 45 bars are
equivalent to approximately 650 psi (pounds per square inch), which is a relatively high
pressure that can cause injury or damage if it is suddenly released or handled without
proper precautions. The level of danger associated with a pressure of 45 bar will depend
on several factors, including the volume of the pressurized substance, the type of
container or pipeline used to contain it, and the environment in which it is stored or
transported. The DALUM CO2 unit consists of process steps with relatively small
volumes and is not subject to inspections or approvals of a third party notified body
before taking into use or on any intervals. However, it is very important to follow the
manual for use and maintenance.
Always depressurize the CO2 Unit before maintaining the system or otherwise work on
the system. The CO2 Unit has an automatic depressurize function, please see the
manual. If the CO2 storage tank has a shut of valve on the liquid CO2 filling line its
mandatory to close this valve when maintaining or working on the DALUM CO2 Unit.
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