Energy intensive processes require a high consumption of fossil fuels resulting in high NOx emissions. To comply with local regulations the NOx content is often reduced in a DeNOx system using ammonia. The challenge of this fast process is to inject the right quantity of ammonia to reduce residual NOx to a minimum while preventing emission of excess ammonia. In-situ analyzer solutions from Endress+Hauser are perfectly suited to monitor NOx and ammonia slip due to an oversupply of NH3 in this dynamic process.
Solution Overview:
Available for:
化工
水、污水和废弃物
电力与能源
石油与天然气/海事工程
采矿、矿物加工及冶金
Hardware & Software:
GM32 in-situ gas analyzer for NOx at the reactor inlet and outlet
GM700 in-situ gas analyzer for NH3 at the reactor outlet
Cross duct or measuring probe versions available
Efficient and cost-effective integration into complete systems
Automatic self-monitoring for minimal maintenance costs and long maintenance-free intervals
Data Acquisition and Handlings Systems (DAHS) for continuous acquisition, evaluation, storage, and visualization, as well as transmission of emissions data for modern emission management
Modular service contracts - flexible for every requirement
Local field service
System engineering, technical consulting and planning
Project management
Factory Acceptance Test (FAT)
Site Acceptance Test (SAT)
Start-up and commissioning
Training by experienced service engineers
Troubleshooting and repair
Remote support where required
Accurate measurement ensures optimized use of additives (NH3) and compliance with emission limit regulations
A DeNOx system (SCR, SNCR) converts NOx which is a toxic gas to N2 and H2O. Both are harmless to humans and other species. Ammonia or an aqueous urea solution is injected after the combustion and converted either into the presence of a catalyst (SCR) or the absence of a catalyst (SNCR). NOx reacts with the ammonia and turns into N2 and H2O.
Therefore, it is crucial to determine the NOx content at the inlet and outlet of the DeNOx reactor (SCR, SNCR). Additionally, the detection of NH3 slip at the reactor outlet is necessary to comply with the increasing regulation of ammonia slip (due to oversupply of NH3 at the reactor inlet).
Endress+Hauser can provide reliable solutions which help to maximize unit functionality and availability. The in-situ measurement technology offers several benefits: No need for sample transportation to the analyzer reducing analysis time. No need for sample handling systems to reduce system costs and maintenance demand. Higher accuracy and better process control because condensation of ammonia is avoided.
Fast and reliable measurement technology
In-situ measurement means direct measurement in the process, leading to fast measurement, reduced system cost and higher accuracy
Tailored to your requirements
Process applications require customized gas analyzer solutions. Endress+Hauser offers
customized solutions designed for numerous possible measuring components
Increased availability through real time monitoring and predictive maintenance
Digital Services monitor all connected devices in real time, detecting changes in sensors and plants early so faults can be identified sooner or prevented entirely
Everywhere there for you
For many years, we have supported your measurement systems and plants with services covering the entire lifecycle, from planning and commissioning to operation, upgrades, and replacement
