Tail Gas Model 888 and 900 ADA
In the past, conventional Claus Sulfur recovery processes were adequately controlled on the basis of ratio or excess process air. The development of new and modified sulfur recovery processes has dramatically changed the analytical requirements placed on the tail gas analyzer. These applications require accurate chemical concentration data over wide dynamic ranges. Selective oxidation processes may require the analyzer to control the H2S/SO2 ratio at values ranging from 1:7 to greater than 10:1. In addition there is an increased need to provide reliable process data during upset conditions to endure correct response to such conditions.
The Model 888, the successor of the 880 NSL uses field-proven and highly reliable UV technology to accurately monitor the H2S and SO2 concentrations in sulfur recovery tail gas. This compact, rugged analyzer mounts directly on the process pipe, eliminating the complexity and safety issues of fiber optic coupled photometers.
The AMETEK Model 900 Air Demand Analyzer was designed to meet these demanding analytical requirements when the customer desires a remote mounted analyzer. Used in conjunction with the ASR 900 sampling probe and heated transfer lines, the Model 900 ensures maximum data availability for optimum operation of the sulfur recovery process.