Grantee Research Project Results
A Novel Method for Simultaneous SO2/N2O Control in Coal Combustion
EPA Contract Number: 68D40051Title: A Novel Method for Simultaneous SO2/N2O Control in Coal Combustion
Investigators: Wojtowicz, Marek
Small Business: Advanced Fuel Research Inc.
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1994 through March 1, 1995
Project Amount: $54,916
RFA: Small Business Innovation Research (SBIR) - Phase I (1994) RFA Text | Recipients Lists
Research Category: Air Quality and Air Toxics , SBIR - Air Pollution , Small Business Innovation Research (SBIR)
Description:
The great advantage of fluidized-bed combustion is low NOx and low-SOx operation. This is off-set by high N2O emission levels and fairly high solid-waste generation. The latter problem is caused mainly by poor calcium utilization during sulfur capture by limestone of dolomite. A novel method is proposed for simultaneous SOx and N2O control with improved calcium utilization (from the current maximum 25% up to expected 75%). The method is based on the injection of organic calcium/magnesium salt solutions into the combustion. This is followed by in-situ water evaporation, decomposition of the salts, and formation of cenospheres of highly porus CaO/MgO-based sorbent. The objective of the Phase I research is to demonstrate experimentally the effectiveness of the method in terms of:
- the efficiency of simultaneous sulfur capture and N2O destruction; and
- high calcium utilization.
- Modification of the experimental set-up;
- Optimization of sorbent properties;
- Experimental study of SO2/N2O control; and
- Process evaluation.
Supplemental Keywords:
Coal Combustion, Fluidized-Bed Combustion, Pollution Control, SOx, N2O, NOx., RFA, Scientific Discipline, Air, Toxics, Sustainable Industry/Business, exploratory air engineering, Chemical Engineering, air toxics, Environmental Chemistry, Sustainable Environment, Chemistry, HAPS, VOCs, Technology for Sustainable Environment, Engineering, Engineering, Chemistry, & Physics, Environmental Engineering, nitrous oxide, Nitrogen Oxides, Nox, nitrogren oxides (NOx), Sulfur dioxide, sulfur dioxide (SO2), fluidized bed combustion, combustion, coal combustion, sulfer oxideProgress 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.