| Attributes | Values |
|---|
| rdf:type
| |
| Description
| - Steam cracking is one of the most important processes in the petrochemical industry. The main advantage of a steam cracking unit is in its versatility to different raw materials, from which the most significant are natural gas condensate, naphtha and atmospheric gas oil. Since the production from these raw materials do not meet the demand in the market, a steam cracking unit often process different materials, whose nature and quantity depends on the particular conditions of the refinery and subsequent petrochemical plant and their location. Such materials are a liquefied petroleum gas, hydrocracked vacuum distillate or C4 fraction from FCC unit and/or steam cracking unit after the removal of butadiene and isobutene. Processing such feedstock, as is C4 fraction, by steam cracking represents great valorization of this raw material. Unfortunately, the presence of a very short hydrocarbon chain and often large ratio of unsaturated hydrocarbons is favorable for undesirable secondary reactions, thus affecting the efficiency of steam cracking. Without prior treatment of the C4 fraction it would not be often possible to assume a substantial yield of ethylene and propylene, and moreover there is a significant risk of fast coke deposition in the tube coil. Therefore, we conducted experiments in a laboratory pyrolysis micro-reactor consisting of a quartz tube filled with silicon carbide on its bottom and connected to tandem gas chromatography system. At first, we performed experiments with LPG mixture containing ca.15% of olefins. Then this mixture was hydrogenated and the pyrolysis experiment was performed as well. As the ratio of olefins was not so large and a part of C4 hydrocarbons was reversibly dehydrogenated under pyrolysis conditions, only slight increase of desirable products was observed. In the next set of experiments the initial LPG was blended in different ratios with two samples of naphtha and the change of yield was studied.
- Steam cracking is one of the most important processes in the petrochemical industry. The main advantage of a steam cracking unit is in its versatility to different raw materials, from which the most significant are natural gas condensate, naphtha and atmospheric gas oil. Since the production from these raw materials do not meet the demand in the market, a steam cracking unit often process different materials, whose nature and quantity depends on the particular conditions of the refinery and subsequent petrochemical plant and their location. Such materials are a liquefied petroleum gas, hydrocracked vacuum distillate or C4 fraction from FCC unit and/or steam cracking unit after the removal of butadiene and isobutene. Processing such feedstock, as is C4 fraction, by steam cracking represents great valorization of this raw material. Unfortunately, the presence of a very short hydrocarbon chain and often large ratio of unsaturated hydrocarbons is favorable for undesirable secondary reactions, thus affecting the efficiency of steam cracking. Without prior treatment of the C4 fraction it would not be often possible to assume a substantial yield of ethylene and propylene, and moreover there is a significant risk of fast coke deposition in the tube coil. Therefore, we conducted experiments in a laboratory pyrolysis micro-reactor consisting of a quartz tube filled with silicon carbide on its bottom and connected to tandem gas chromatography system. At first, we performed experiments with LPG mixture containing ca.15% of olefins. Then this mixture was hydrogenated and the pyrolysis experiment was performed as well. As the ratio of olefins was not so large and a part of C4 hydrocarbons was reversibly dehydrogenated under pyrolysis conditions, only slight increase of desirable products was observed. In the next set of experiments the initial LPG was blended in different ratios with two samples of naphtha and the change of yield was studied. (en)
|
| Title
| - Study of hydrogenation and co-pyrolysis on steam cracking yields of LPG mixture
- Study of hydrogenation and co-pyrolysis on steam cracking yields of LPG mixture (en)
|
| skos:prefLabel
| - Study of hydrogenation and co-pyrolysis on steam cracking yields of LPG mixture
- Study of hydrogenation and co-pyrolysis on steam cracking yields of LPG mixture (en)
|
| skos:notation
| - RIV/60461373:22310/13:43896575!RIV14-MSM-22310___
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/13:43896575
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - LPG; naphtha; co-pyrolysis; hydrogenation; Steam cracking (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...v/mistoKonaniAkce
| |
| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - International Conference on Chemical Technology - ICCT 2013
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Kolena, Jiří
- Zámostný, Petr
- Petrů, Jiří
|
| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Česká společnost průmyslové chemie - GS
|
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)