Waste Heat Boilers and Sulphur Condensers in the Su lphur Process Industry: Facing the Large Plant Capacity Trend. Current projects require SR and SA trains up to 350 t/h (1000 to 2000 tpd S1) of gas flow-rate and 4000 MTPD of product respectively.
The Claus Waste Heat Boiler (WHB) is a critical piece of equipment in the sulfur recovery unit (SRU). As refiners and gas producers have pushed towards higher sulfur feedstocks placing more load on the SRU, failures have become more common.
sulfur recovery unit
The raw syngas from the gasification island is cooled in waste-heat boilers, recovering heat while generating steam at medium- and low-pressure level before being sent to the AGR unit for H 2 S removal. Depending on the AGR system employed, a COS hydrolysis step may be required.
The waste heat boiler of the sulfur recovery unit is a typical fire tube boiler. The multi-pipe mouth of the waste heat boiler is connected with the outlet of the heat reactor, which is both the rear wall of the reactor and the end of the transition zone. The waste heat boiler has two functions. Firstly, recover high heat by producing medium steam.
An offgas waste heat boiler was provided for the sulfur recovery unit expansion project built by CNPC Lanzhou Company. The boiler was to produce some saturated steam and superheat some saturated steam from external source. In addition, it was to cool the offgas from around700 ℃ to310 ℃.
Feb 13, 2007· The typical Claus sulfur recovery unit includes an acid gas burner, a waste heat boiler, and sulfur condenser followed by 2, 3, or 4 catalyst bed converters for conversion of H2S and SO2 to sulfur. Each converter is preceded by a reheater and followed by a sulfur condenser. Alternate or optional reactors might include sulfur partial oxidation (SUPERCLAUS® type), sulfur direct oxidation …
RENTECH Boiler Systems offers a full range of custom designed waste heat recovery boiler systems to meet your most demanding project requirements. RENTECH is an American boiler manufacturer known for its ability to provide custom engineered solutions for a wide variety of applications.
Waste Heat Boiler. As a necessary part of sulfur recovery unit, the waste heat boiler is a typical fire tube boiler. The multi-pipe mouth of the waste heat boiler is connected with the outlet of the heat reaction furnace, which is both the rear wall of the reactor and the end of the transition zone. The function of the waste heat boiler can be divided into two aspects.
RD&D to advance waste heat recovery technologies. Technology needs are identified in two broad areas: 1) extending the range of existing technologies to enhance their economic feasibility and recovery efficiency, and 2) exploring new methods for waste heat recovery, especially for unconventional waste heat sources. Acknowledgement
SULFUR RECOVERY UNIT Combustion Equipment Custom-designed SRU equipment. The Sulfur Recovery Unit (SRU) is often referred to as the Claus Process. This process recovers elemental sulfur from petroleum and natural gas refining processes and reduces the hazardous sulfur emissions to limits permitted by national and local air quality requirements. Zeeco
Superior Boiler offers waste heat recovery boilers in three basic designs to provide the greatest flexibility of any manufacturer in selecting a unit that is designed to meet the specific requirements of each application. Boiler designs are customized for specific job conditions to provide optimum performance and maximum energy savings.
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