Advanced separation technology for flue gas cleanup. Quarterly technical report No. 14 [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1995. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 29 pages : digital, PDF file
- Additional Creators:
- SRI International, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The objective of this work is to develop a novel system for regenerable SO₂ and NOₓ scrubbing of flue gas that focuses on (a) a novel method for regeneration of spent SO₂ scrubbing liquor and (b) novel chemistry for reversible absorption of NOₓ. In addition, high efficiency hollow fiber contactors (HFC) are proposed as the devices for scrubbing the SO₂ and NOₓ from the flue gas. The system will be designed to remove more than 95% of the SOₓ and more than 75% of the NOₓ from flue gases typical of pulverized coal-fired power plants at a cost that is at least 20% less than combined wet limestone scrubbing of SOₓ and selective catalytic reduction NOₓ. In addition, the process will make only marketable byproducts, if any (no waste streams). During the third quarter of 1995, we continued work on Task 8, integrated NOₓ life tests. We also obtained some mass transfer data on Task 9, performance of scalable modules. In Task 8, we gathered additional 400 hours of NOₓ absorption/desorption data. We also presented the data on NOₓ absorption/desorption behavior over cumulative time to date. the performance indicates unchanged reversible characteristics of Co(II) phthalocyanine solution. Therefore, we believe that NOₓ absorption/desorption chemistry is robust. In Task 9, we experimentally observed the channeling of liquid flow due to poor design of previous rectangular modules. Newly obtained welded rectangular modules out-performed previous modules. We also presented SO₂ absorption data using different Na₂SO₃ concentrations. The SO₂ absorption seem to be dependent on liquid flow rate, a rather surprising result compared to earlier results. Apparatus for combined absorption/desorption of SO₂ in rectangular modules is also given in this report.
- Published through SciTech Connect., 11/01/1995., "doe/pc/91344--t15", "DE96009291", and Majumdar, S.; Bhown, A.S.; Pakala, N.; Riggs, T.; Tagg, T.; Bhaumick, D.; Kirkar, K.K.
- Funding Information:
View MARC record | catkey: 13838239