SU663425A1 - Method of preparing chromium oxide catalyst for purifying flue gases from sulphur dioxide - Google Patents

Method of preparing chromium oxide catalyst for purifying flue gases from sulphur dioxide

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Publication number
SU663425A1
SU663425A1 SU762313977A SU2313977A SU663425A1 SU 663425 A1 SU663425 A1 SU 663425A1 SU 762313977 A SU762313977 A SU 762313977A SU 2313977 A SU2313977 A SU 2313977A SU 663425 A1 SU663425 A1 SU 663425A1
Authority
SU
USSR - Soviet Union
Prior art keywords
chromium oxide
flue gases
oxide catalyst
sulphur dioxide
purifying flue
Prior art date
Application number
SU762313977A
Other languages
Russian (ru)
Inventor
Виталий Андреевич Таранушич
Константин Григорьевич Ильин
Александр Петрович Савостьянов
Галина Степановна Нечаева
Сергей Михайлович Мотько
Original Assignee
Новочеркасский ордена Трудового Красного Знамени политехнический институт им. Серго Орджоникидзе
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.)
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Application filed by Новочеркасский ордена Трудового Красного Знамени политехнический институт им. Серго Орджоникидзе filed Critical Новочеркасский ордена Трудового Красного Знамени политехнический институт им. Серго Орджоникидзе
Priority to SU762313977A priority Critical patent/SU663425A1/en
Application granted granted Critical
Publication of SU663425A1 publication Critical patent/SU663425A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

366 ют 30 мин до установлени  посто нной температуры расплава соли - . Пйлу-ченный расплав пролгазают через колонку с носителем. С помощью компрессора воздухом продувают колонку с пропитайным азотнокислым хромом носите ём. 15 мин. Пропитанный носитель помешают в тигель н в сушильный шкаф. Выдерживают следующий режим сущки: 80°С 2 час, - 2 час, i3Cfc - 2 час, 200°С .4 час Дальнейшую прокалку катализатора провод т в контактном ашюрате при 55О°С 2 час с продувкой воздухом при объемной скоросгигаза 8000 час , Состав полученного катализатора, вес.%; СГ2 Oj - 19,5; ABg Oj - 80,5. Пример 2. Катализатор готов т аналогично примеру 1. Отличие в том, . что охлаждение носител  ведут до 60°С, а пропитку расплавом нитрата хрома ве дут при . . Состав полученного катализатора тот же, что в примере 1. Пример 3. Катализатор готов т аналргично примеру 1. Температура пропитки расплавом нитрата хрома равна 70°С.. . Состав полученного катализатора тот же, что в примере 1, В таблице приведена степень превращени  50о в SOg, в %. Услови  испытани : концентраци  ЗОл0 ,3 об.%, Og - 20 о6.%. Объемна  скорость газа 4000 час. Врем  работы при температуре С час; 475-500°С - 96 час; по 5 час при установившейс  посто нной. степени превращени  в 50„. ьо366 minutes 30 minutes to establish a constant temperature of the salt melt -. The melted melt is passed through a column with a carrier. With the help of a compressor, you carry out a column with propitium nitrate chromium with air. 15 minutes. The impregnated carrier is placed in a crucible and in an oven. The following mode of maintenance is maintained: 80 ° C for 2 hours, - 2 hours, i3Cfc - 2 hours, 200 ° C .4 hours Further catalyst calcination is carried out in contact ashyurate at 55 ° C for 2 hours with air blowing at a volume skorigigaz of 8000 hours, Composition catalyst obtained, wt.%; SG2 Oj - 19.5; ABg Oj - 80.5. Example 2. The catalyst was prepared analogously to example 1. The difference is,. that the carrier is cooled to 60 ° С, and the impregnation with chromium nitrate melt is carried out at. . The composition of the catalyst obtained is the same as in Example 1. Example 3. The catalyst is prepared analogously to Example 1. The temperature of the melt impregnation with chromium nitrate is 70 ° C. The composition of the catalyst obtained is the same as in Example 1. The table shows the degree of conversion of 50 ° to SOg, in%. Test conditions: ZO0 concentration, 3 vol.%, Og - 20 o6.%. The volumetric gas velocity is 4000 hours. Work time at temperature С hour; 475-500 ° C - 96 hours; 5 hours at steady state. degrees of conversion to 50 ". yo

Известный85,3 64,8 52,8 78,9 86,6 Предлагаемый 95,8 92,2 78,5 96,5 95,5 Формула, из обретени  Способ приготовлени  хромокисного катвлвзаторе дл  очистки отход щих о JmyoKRCe серы, отличающийс   тем, что,с целью получени  катализатора с высокой активностью, окись алюМЕ1ВЫЯ о юпвтывают при температуре 507О С расплавом нитрата хрома с последующим переводом его в окись хрома пу тв( сушки и прокаливани . 85,0 82,3 77,3 61,8 55,3 80,1 94,2 87,5 78,8 61,9 57,6 96,2 Источники информации, прин тые во внимание при экспертизе I. 1 .Ададуров И. Е. и др. Вли ние состава и расположени  контактной массы на каталитическую активность хромс зых катал ааторов , ЖОХ, 1934, т. 7, вып. 8, с. .17. 2.Реферативный журнал Хими  , 13, л. 205, 1967.Known85.3 64.8 52.8 78.9 86.6 Proposed 95.8 92.2 78.5 96.5 95.5 Formula from the process of preparing a chromaoxide cutter for cleaning JmyoKRCe waste sulfur, characterized in that, in order to obtain a catalyst with high activity, alumina oxide is boiled up at a temperature of 507 ° C with a melt of chromium nitrate, followed by its conversion into chromium oxide by drying (and calcining 85.0 82.3 77.3 61.8 55.3 80.1 94.2 87.5 78.8 61.9 57.6 96.2 Sources of information taken into account during the examination I. 1. Adadurov I. Ye. Et al. Effect of the composition and location of the contact mass n and the catalytic activity of chromium catalysts, JOH, 1934, Vol. 7, Issue 8, pp. 17. 2. Referative Journal of Chemie, 13, L. 205, 1967.

SU762313977A 1976-01-19 1976-01-19 Method of preparing chromium oxide catalyst for purifying flue gases from sulphur dioxide SU663425A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762313977A SU663425A1 (en) 1976-01-19 1976-01-19 Method of preparing chromium oxide catalyst for purifying flue gases from sulphur dioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762313977A SU663425A1 (en) 1976-01-19 1976-01-19 Method of preparing chromium oxide catalyst for purifying flue gases from sulphur dioxide

Publications (1)

Publication Number Publication Date
SU663425A1 true SU663425A1 (en) 1979-05-25

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Country Status (1)

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SU (1) SU663425A1 (en)

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