GB765025A - Process for the catalytic dehydrogenation of hydrocarbons - Google Patents
Process for the catalytic dehydrogenation of hydrocarbonsInfo
- Publication number
- GB765025A GB765025A GB7023/55A GB702355A GB765025A GB 765025 A GB765025 A GB 765025A GB 7023/55 A GB7023/55 A GB 7023/55A GB 702355 A GB702355 A GB 702355A GB 765025 A GB765025 A GB 765025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- mixture
- catalyst
- dehydrogenation
- furnace
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/321—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
- B01J8/062—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes being installed in a furnace
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
<PICT:0765025/IV(b)/1> In dehydrogenating hydrocarbons in the presence of superheated steam with the aid of a furnace having tubes containing a dehydrogenation catalyst and kept by external heating at the requisite dehydrogenation temperature, the temperature is maintained substantially uniform over the whole catalyst region by preheating the hydrocarbon and mixing it, shortly before its entry into the furnace, with sufficient superheated steam to produce the dehydrogenating temperature, passing the mixture through a layer of the dehydrogenation catalyst situated above the tubes, and then passing the mixture into the tubes at the moment when the heat content of the mixture is no longer sufficient for the dehydrogenation. In the apparatus of Fig. 2, for the 38-39 per cent conversion of ethylbenzene to styrene, furnace tubes 2 are filled with a catalyst consisting of ferric, magnesium, copper, and potassium oxides and there is a layer 6 of this catalyst above the tubes; a mixture of ethylbenzene vapour and steam in the ratio by weight 1:1.3, introduced at a, is preheated to 579 DEG C., and the reaction mixture leaving the tubes at c is at 588 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE765025X | 1954-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB765025A true GB765025A (en) | 1957-01-02 |
Family
ID=6673004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7023/55A Expired GB765025A (en) | 1954-11-12 | 1955-03-10 | Process for the catalytic dehydrogenation of hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB765025A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5856605A (en) * | 1994-03-16 | 1999-01-05 | Basf Aktiengesellschaft | Dehydrogenation of ethylbenzene |
| US20180028997A1 (en) * | 2015-03-20 | 2018-02-01 | Haldor Topsøe A/S | Boiling water reactor |
-
1955
- 1955-03-10 GB GB7023/55A patent/GB765025A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5856605A (en) * | 1994-03-16 | 1999-01-05 | Basf Aktiengesellschaft | Dehydrogenation of ethylbenzene |
| US20180028997A1 (en) * | 2015-03-20 | 2018-02-01 | Haldor Topsøe A/S | Boiling water reactor |
| US10525428B2 (en) * | 2015-03-20 | 2020-01-07 | Haldor Topsoe A/S | Boiling water reactor |
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