GB565728A - Improvements in or relating to the absorption of nitrogen oxides contained in gases - Google Patents

Improvements in or relating to the absorption of nitrogen oxides contained in gases

Info

Publication number
GB565728A
GB565728A GB365243A GB365243A GB565728A GB 565728 A GB565728 A GB 565728A GB 365243 A GB365243 A GB 365243A GB 365243 A GB365243 A GB 365243A GB 565728 A GB565728 A GB 565728A
Authority
GB
United Kingdom
Prior art keywords
gases
steam
tower
gas
nitrogen oxides
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.)
Expired
Application number
GB365243A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB365243A priority Critical patent/GB565728A/en
Publication of GB565728A publication Critical patent/GB565728A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

565,728. Treating gases with liquids. KALOUS, M. J. March 5, 1943, No. 3652. [Class 55 (ii)] [Also in Group III] Apparatus for absorbing nitrogen oxides from gases by passing in progressive stages in countercurrent to nitric acid of decreasing strength, includes means for introducing live steam into the gas in one or more of the later stages. Direct or indirect cooling of the gases may follow the introduction of steam. As shown in Fig. 1, gas enters at 22 and passes through packing material 5, 6, 7, 8 in four vertical towers, leaving the system at 26. Water is admitted at 17 and flows as weak acid from tower to tower through pipes 20, 19, 18 and out at 21. The acid in each tower is circulated by pumps 9, 10, 11, 12 through coolers 13, 14, 15, 16. Live steam is admitted through distributer 27. Apparatus is also described for carrying out the process under superatmospheric pressure by bubbling the gas through the liquid in a partitioned absorption column or a number of superposed drums. In the former case steam is introduced into each of the two top sections, a cooling coil being positioned in the uppermost section, and in the latter case steam is introduced into the second and third drums from the top, and cooling water flows over the exterior of the top drum.
GB365243A 1943-03-05 1943-03-05 Improvements in or relating to the absorption of nitrogen oxides contained in gases Expired GB565728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB365243A GB565728A (en) 1943-03-05 1943-03-05 Improvements in or relating to the absorption of nitrogen oxides contained in gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB365243A GB565728A (en) 1943-03-05 1943-03-05 Improvements in or relating to the absorption of nitrogen oxides contained in gases

Publications (1)

Publication Number Publication Date
GB565728A true GB565728A (en) 1944-11-24

Family

ID=9762360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB365243A Expired GB565728A (en) 1943-03-05 1943-03-05 Improvements in or relating to the absorption of nitrogen oxides contained in gases

Country Status (1)

Country Link
GB (1) GB565728A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044043B (en) * 1955-08-27 1958-11-20 Uhde Gmbh Friedrich Process and column for accelerating slowly occurring reactions in the gas phase, in particular nitrousoxidation
US4880445A (en) * 1988-01-20 1989-11-14 Watten Barnaby J Multiple stage gas absorber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044043B (en) * 1955-08-27 1958-11-20 Uhde Gmbh Friedrich Process and column for accelerating slowly occurring reactions in the gas phase, in particular nitrousoxidation
US4880445A (en) * 1988-01-20 1989-11-14 Watten Barnaby J Multiple stage gas absorber

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