Our teams work closely with you to ensure the optimal operation of your FGT process. This is done with a variety of tools and services. On-site visits enable our experts to collect FGT residue samples and measure flue gas composition. Computer simulation – using computational fluid dynamics and reaction kinetic models – allows accurate predictions of your process. We offer a suite of proprietary process equipment designed to improve the industrial performance of our sorbents in your system.
Process modeling
Macroscopic simulation of the mixing behavior of our sorbents in the flue gas is carried out with computational fluid dynamics (CFD). With CFD we can, for instance, optimize the positioning of the Sorbacal® injection lances to take advantage of the flow dynamics of the flue gas in the duct.
On a microscopic scale our reaction kinetic models predict the reactivity of our sorbents as a function of the flue gas composition and process conditions. The complex interaction between gas composition, sorbent pore structure, injection location and the particulate separation unit are captured in predictive engineering models.
Process Equipment
We have developed proprietary equipment that maximizes the performance of our products in your process.
Venturi injection system
The Venturi injector uses a secondary airflow to inject the dry sorbent into the flue gas. This results in deeper penetration of the sorbent plume and improved dispersion throughout the flue gas. The Venturi injector is especially suited for furnace sorbent injection where proper dispersion is critical.
Infrasonic clog-prevention system
The Infrasonic system emits low-frequency sound waves into the pneumatic conveying lines to prevent clogging inside the tubes. The system reduces the maintenance time of the sorbent injection unit and facilitates Sorbacal® dosing.
Milk of lime systems
We offer several systems to prepare milk of lime (lime slurries) from Sorbacal® Q or Sorbacal® H.
The Porta-Batch® is a diesel-powered hot slaking unit available in the US, while the Duwa-Matic® system is available in Europe. These units produce reliable and consistent slurries batch after batch. Due to the controlled operating conditions the slurry is highly reactive because of the small particle size.
The storage capacity can vary according to your needs, and ranges from 1 m3 to 150 m3 for milk of lime, and from 30 to 1,000 metric tons for bulk lime.
Sorbent storage and dosing systems
Lhoist has a fleet of storage silos and dosing systems, as well as an engineering team to install them at your site. Primarily used for customer trials, these dosing solutions are often rented for longer periods. Our systems provide reliable and accurate dosing of our sorbents for your process.
Sorbent consumption estimates
More than two decades of experience with commercial FGT installations – combined with our theoretical reaction engineering models – allow our experts to estimate the required Sorbacal® consumption. This service is offered to equipment designers and suppliers of new FGT installations and is used by our teams to troubleshoot and optimize existing installations.
