UST955002I4 - Fertilizer processes incorporating scrubbed flue gas sludge byproduct - Google Patents
Fertilizer processes incorporating scrubbed flue gas sludge byproduct Download PDFInfo
- Publication number
- UST955002I4 UST955002I4 US05/660,054 US66005476A UST955002I4 US T955002 I4 UST955002 I4 US T955002I4 US 66005476 A US66005476 A US 66005476A US T955002 I4 UST955002 I4 US T955002I4
- Authority
- US
- United States
- Prior art keywords
- sludge
- ammonia
- acid
- discharged
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title abstract 4
- 239000003546 flue gas Substances 0.000 title abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003337 fertilizer Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000006227 byproduct Substances 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 235000015097 nutrients Nutrition 0.000 abstract 2
- 239000011833 salt mixture Substances 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000005201 scrubbing Methods 0.000 abstract 1
- 239000011343 solid material Substances 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
A process for the production of a granular fertilizer material from sludge materials discharged from scrubbing processes that remove pollutants from boiler flue gases. Waste sludge discharged from flue gas scrubber systems often contain large amounts of calcium and sulfur as well as lesser amounts of other compounds known to have plant nutrient value. The sludge is treated with an acid such as phosphoric, sulfuric or nitric, or a mixture of these, and ammonia. The resulting sludge-ammonia-acid salt mixture is combined with partially dried, previously processed solid material (recycle) in a horizontal rotating vessel. Additional ammonia and/or acid is added to the rotating vessel to cause the sludge-salt mixture to solidify and granulate. Other plant nutrients may be added to the rotating vessel during granulation. The granulated material discharged from the rotary vessel is further processed (dried, cooled, and screened) to obtain desirable moisture content and particle size.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/660,054 UST955002I4 (en) | 1976-02-23 | 1976-02-23 | Fertilizer processes incorporating scrubbed flue gas sludge byproduct |
| US05/733,395 US4028087A (en) | 1976-02-23 | 1976-10-18 | Fertilizer processes incorporating scrubbed flue gas sludge byproduct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/660,054 UST955002I4 (en) | 1976-02-23 | 1976-02-23 | Fertilizer processes incorporating scrubbed flue gas sludge byproduct |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/733,395 Continuation US4028087A (en) | 1976-02-23 | 1976-10-18 | Fertilizer processes incorporating scrubbed flue gas sludge byproduct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST955002I4 true UST955002I4 (en) | 1977-02-01 |
Family
ID=24647937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/660,054 Pending UST955002I4 (en) | 1976-02-23 | 1976-02-23 | Fertilizer processes incorporating scrubbed flue gas sludge byproduct |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST955002I4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670225A (en) | 1983-07-29 | 1987-06-02 | Societe Anonyme Styled: S.A.E.TIMAC | Apparatus for continuously making, in dry phase, exothermic reactions involving liberation of gas, and products obtained, particularly calcium phosphates |
| US5984992A (en) * | 1997-05-07 | 1999-11-16 | Unity, Inc. | Sewage sludge recycling with a pipe cross-reactor |
-
1976
- 1976-02-23 US US05/660,054 patent/UST955002I4/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670225A (en) | 1983-07-29 | 1987-06-02 | Societe Anonyme Styled: S.A.E.TIMAC | Apparatus for continuously making, in dry phase, exothermic reactions involving liberation of gas, and products obtained, particularly calcium phosphates |
| US5984992A (en) * | 1997-05-07 | 1999-11-16 | Unity, Inc. | Sewage sludge recycling with a pipe cross-reactor |
| US6159263A (en) * | 1997-05-07 | 2000-12-12 | Unity, Inc. | Sewage sludge recycling with a pipe cross-reactor |
| US6758879B2 (en) | 1997-05-07 | 2004-07-06 | Unity, Inc. | Sewage sludge recycling with a pipe cross-reactor |
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