CCS and Power Systems

Advanced Energy Systems - Gasification Systems

Advanced Acid Gas Separation Technology for Clean Power and Syngas Applications

Performer: Air Products and Chemicals, Inc.

Project No: FE0013363

Project Scope and Technology Readiness Level

This project will be conducted in one phase by a team consisting of staff from Air Products and the NCCC. ACPI's existing Sour PSA test unit will be upgraded and inserted into a weatherproof container along with a guard bed unit and feed gas compression system. The unit will be installed at NCCC's gasification site and operated for a period of approximately six weeks. The fate of trace components in the Sour PSA system will be evaluated, whether in the various effluent gas streams or on the adsorbents (analyzed via post-mortem studies). Guard bed (a fixed bed of pellets that selectively absorb materials of interest) effectiveness at removing potential tar species will be ensured by monitoring benzene breakthrough. Important metrics of performance (CO2 and H2S rejection, CO and H2 recovery), will be monitored to assess PSA operational stability. The data collected will also be compared with predictions from an ACPI in-house simulator (SIMPAC) to validate the simulation tool. ACPI will also investigate the use of pressure equalization cycles in a four- to six-bed PSA system utilizing sulfur-free, synthetic syngas with high CO and H2 content. This will also provide further validation of the simulation tool. The above work will provide information necessary to design a Sour PSA-based gasification process to produce purified syngas for methanol synthesis.

The Technology Readiness Level (TRL) assessment identifies the current state of readiness of the key technologies being developed under the DOE's Clean Coal Research Program. This project has not been assessed.

The TRL assessment process and its results including definition and description of the levels may be found in the "2012 Technology Readiness Assessment-Analysis of Active Research Portfolio".

Project Details