Grantee Research Project Results
A Dry Scrubber for Pre-NSPS Boilers
EPA Contract Number: 68D10051Title: A Dry Scrubber for Pre-NSPS Boilers
Investigators: Smolensky, Leo A.
Small Business: LSR Environmental Systems Co.
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1991 through March 1, 1992
Project Amount: $50,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1991) RFA Text | Recipients Lists
Research Category: SBIR - Air Pollution , Small Business Innovation Research (SBIR) , Air Quality and Air Toxics
Description:
A new method for removing acid rain precursors from coal-fired boilers has been conceived. The concept involves a tail-end scrubber retrofit for installation In plants which pre-date the 1970 Clean Air Act. The concept is highly innovative and has many advantages over other sorbent injection processes.Heterogeneous reactions between SO2 and calcium-based sorbents are affected by the mass transfer between the two phases and the contacting patterns of the reactants. Fluid- ized bed systems have been found to be well suited to these reactions because of their turbulent mixing and ability to control gas and particle residence times. A unique type of circulating bed reactor, called a twin scrubber, is proposed for this retrofit application. Some of its advantages include very low space requirements, enhanced mass transfer, ab- sence of a distributor plate, few sorbent injection points, and high turndown. The proposed Phase I program includes a feasibility analysis of this concept.
Supplemental Keywords:
Sustainable Industry/Business, Scientific Discipline, Air, Technology for Sustainable Environment, Engineering, Chemistry, Engineering, Chemistry, & Physics, cleaner production/pollution prevention, air toxics, New/Innovative technologies, acid rain precursors, air scrubbers, dry scrubber, emissions control, boilers , innovative technologies, air emissions, emission controls, control, coal combustion, emission control technologies, twin scrubber, air pollutants, coal fired utility boiler , air pollutant precursors, innovative technology, acid rain, fluidized bed combustionProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.