Carbon Capture Storage (CCS)

How Calorimetry in Carbon Capture Storage (CCS) is helping to reduce carbon dioxide emissions

Carbon Capture Storage (CCS) (or Carbon Capture and Sequestration or Carbon Control and Sequestration) is the process of capturing waste carbon dioxide (CO2) from large point sources.

One solution to reducing carbon dioxide emissions is post-combustion carbon dioxide absorption. In order to model these technologies, both technically and economically, the process and chemical engineers require a high quality of data, both for the carbon dioxide adsorption and desorption process, but also for the vapour-liquid equilibrium measurements.

The Chemisens Calorimeters can be configured in a number of ways for applications into Carbon Capture Storage studies. This allows measurement of carbon dioxide adsorption, carbon dioxide desorption, degradation of absorbing solution, the measurement of vapour-liquid equilibrium and the measurement of specific heat capacities.

Why choose ChemiSens Calorimeters for carbon dioxide capture?

The Chemisens Calorimeters are unique instruments for those performing solvent capture studies of carbon dioxide. Read below the benefits it offers:

 Parameter for CCS  Chemisens Calorimeter feature  Why is this significant?
The capacity of solvent system to absorb/desorb CO2  Chemisens Calorimeter can measure the enthalpy of CO2 absorption/desorption, the mass flow of CO2 in and out of the calorimeter  A significant parameter when rating solvent systems for Carbon Capture Storage is their capacity to absorb CO2 per mass/volume of solvent. The Chemisens Calorimeter has mass-flow meters, turbidity probes, and real-time power so a true mass balance can be carried out. The size of the reactor allows for additional online measurements, such as GC-MS
The rate of CO2 absorption/desorption Chemisens Calorimeter mass flow meters allow the rate of absorption and desorption to be measured  The calorimeter can in real time determine the rate of absorption from the gas phase into the liquid phase, and can determine whether there is delay between gas addition and gas absorption by the solvent
Whether the solvent degrades during temperature cycling Chemisens Calorimeter allows solvent system to be cycled through a cooling/adsorption step and subsequently the absorption and desorption of CO2  The calorimeter never requires calibration and so a series of sequential experiments is possible where the change in the adsorption and desorption of CO2 can be properly assigned to a solvent change as opposed to a drift in the instrument
Volatility of solvent system Chemisens Calorimeter can determine the volatility of the solvent system  Chemisens Calorimeter has a reflux calorimeter condenser so the vaporization of the solvent system and its subsequent condensation on the condenser are easily measured
Vapour Liquid Equilibrium (VLE)  Chemisens Calorimeter can measure the VLE in real-time  Chemisens Calorimeter allows for differential addition of CO2 (as opposed to integration addition), along with VLE calculations
Controlled precipitation/immiscible separation  Chemisens Calorimeter can measure the controlled precipitation or immiscibility between carbon dioxide rich and carbon dioxide lean solutions  Chemisens Calorimeter allows full viewing of the reactor contents in the case of immiscible fluid generation or solid precipitation
Reversible absorption/desorption Chemisens Calorimeter can measure the reversibility of absorption and desorption of CO2  The calibration-free and real-time nature of the Chemisens Calorimeter means the solvent can be cycled several times to determine the reversibility of the absorption and whether the solvent system degrades
Low energy of absorption/desorption  The solvent system should ideally not have large enthalpies associated with it  The calibration-free and real-time nature of the Chemisens Calorimeter means the enthalpy of adsorption and desorption can be seen ‘on-the-fly’

More information on Carbon Capture Storage can be found at the Carbon Capture and Storage Association’s website.

 

A photograph of the ChemiSens Calorimeter Range
ChemiSens Calorimeter Range

Author: Syrris

Category: Applications