In this project, a digesting installation is realized with a total capacity of 1.56 MWe. Besides the ‘normal’ input of a co-digester (cattle manure, chicken manure and corn), the input of the installation consists for a large part of apple pulp. The apple pulp is a waste product of the apple cider production.
The total installation consists of a solid feeding system for solid products and an input for liquid products. In the installation, a high efficiency is realized by applying highly efficient digesters and a combination of main digesters with an after-digester. The total capacity of the installation is approximately 12,500 MWh/year.
The digestate is separated in a thin fraction, which makes it possible to store the thin fraction in a large basin for the winter months, without forming floating layers and sedimentation.
TOTAL UTILISATION WITH CO2 LIQUEFACTION
In this project HoSt also developed an installation for biogas upgrading and HoSt delivered a CO2 liquefaction and storage plant. The plant will capture 850 kg/hour CO2 from the off-gas output of HoSt’s membrane upgrade plant, processing 1.000 m3/h biogas. This represents a total utilisation of the biogas production with CH4 sent to grid and CO2 captured for re-use.
PROJECT MILESTONES |
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| Start Construction | March 2011 |
| Startup | November 2011 |
SPECIFICATIONS |
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| Capacity | 40,000 tons/year |
| Input | Cattle manure, chicken manure, apple pomace and corn |
| Digester(s) | 2 x 2,281 m³ |
| After-digester | 1 x 1,527 m³ |
| CHP(s) | 1,560 kWe MWM + FGC |
| Solid feeding input | 2 x 60 m³ mixing/dosing bin with input screws |
| After-treatment | Screw press separator |
BIOGAS UPGRADING |
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| Capacity | 1000 Nm³/hr raw biogas 520 Nm³/hr biomethane |
| Methane content raw biogas | 50-55% |
| Methane content product gas | > 97% |
| After-digester(s) | 1 x 1,527 m³ |
| Efficiency | 99.9% |
| CO2 liquefaction capacity | 850 kg/h |
| CO2 purity | >99.7% (food-grade) |
CHARACTERISTICS |
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More information
Do you want to receive more information about our biogas plants, want to learn more about our anaerobic digestion technology or do you want to know what HoSt can do for you? Don’t hesitate to contact us through [email protected] or call us on +31 (0)53 – 460 90 80.
