INDUSTRY:
Carbon capture and storage (CCS) industry
FOCUS:
Creating an automated system that captures and stores CO₂ in recycled construction materials, reducing carbon emissions and build costs.
OBJECTIVE:
The objective is to maximize carbon dioxide (CO₂) absorption and retention in construction materials while minimizing losses during the process.
The discovery of construction materials that have an optimized rate of CO₂ absorption.
SOLUTION:
- PLC: CPU 1512SP-1 PN
- Digital Input modules;
- Digital Output modules;
- Analog Input modules;
- Analog Output modules;
- Unified Human Machine Interface (HMI).
- Utilized Siemens PLC 1512SP-1 PN for primary control;
- Siemens MTP1200 Unified (HMI);
- View of Things (VoT – a web-based HMI visualizations for maintenance works and initial system configuration).
We have used these features to:
- Create HMI dashboards that can be accessed via web browsers;
- Create dynamic HMI Interfaces because VOT is based on WinCC Unified technology;
- Save up money considering we are not using an HMI. The web application resides in the memory of the PLC;
- Interact and control the PLC program thought any device that supports a web browser;
PROJECT DURATION:
2 months
THE PROJECT COMPRISED OF:
Electrical design:
- 1 x MC01 main panel – Siemens PLC 1512SP-1 PN;
- 7x EC (1 to 7) Secondary panels;
- Eplan P8 Electrical diagram design in accordance with the client’s requirements via A&S list an P&ID;
- Cable tray and device placement 3D design;
- Bloc diagram of the entire electrical system.
System description:
- Compact 2×25 m3 CO₂ injection system with wheel loader operation is composed of:
- Loading the vacuum sealed 2×25 m3 reaction chambers in which the material is stored during the application process;
- High pressure injection of CO₂ gas in the reaction chamber with a strict pressure control and leakage safety system;
- Unloading the reaction chamber, of the CO₂ lined material, with the assistance of vibration motors, on frequency convertor controlled conveyor to the unloading area;
- Two PID controllers manage the chamber pressure and minimize CO₂ losses;
- Liquid CO₂ is evaporated to maintain pressure;
- CO₂ sensors ensure safety by shutting down the system if levels exceed limits;
- Remote PLC control and IoT system integration with open protocol (OPC) communication via Helmholz VPN;
- HMI and VoT enable system visualization and control, showing the plant’s status and error explanations to reduce downtime.
Field equipments:
- Inosent CO2 Detector i2608-CO2-I – Measures CO2 concentration, ensures safety with alarms and a backup systems, and reduces CO2 emissions;
- Endress+Hauser Proline Promass E 300 Coriolis flowmeter – Used for measuring CO2 parameters in real time:
– Volumetric flow of CO₂;
– Mass flow of CO₂;
– Total kg of injected CO₂;
– Temperature of CO₂.
