Improving the steam-cracking efficiency of naphtha feedstocks by mixed/separate processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43920752" target="_blank" >RIV/60461373:22310/20:43920752 - isvavai.cz</a>

Výsledek na webu

<a href="http://doi.org/10.1016/j.jaap.2019.104768" target="_blank" >http://doi.org/10.1016/j.jaap.2019.104768</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jaap.2019.104768" target="_blank" >10.1016/j.jaap.2019.104768</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improving the steam-cracking efficiency of naphtha feedstocks by mixed/separate processing

Popis výsledku v původním jazyce

Naphtha feedstock used for the steam-cracking process is typically blended from several hydrocarbon source streams of composition varying in a broad range. This study aims at evaluation of the potential yield improvement, which could be obtained by separate steam-cracking of light and heavy sub-streams using tailored process parameters for each of the sub-streams. Laboratory pyrolysis reactor was used for both separate and blend processing of the naphtha feedstocks in the temperature range of 760–810 C, and different blending ratios. At maximum temperature, pyrolysis of light naphtha provides ethylene yield 24.1 wt. %, while only 13.6 wt. % of ethylene was obtained from heavy naphtha. Both, ethylene and propylene yield express decreasing trend with increasing content of heavy naphtha in blended feedstock. Obtained results suggest possibility of mutual effects between components resulting in non-linear dependence of products yields on the blending ratio, therefore a principle of additivity cannot be assumed. A potential for improvement of ethylene yield by 1.1 wt. % is shown on example of processing scenario.

Název v anglickém jazyce

Improving the steam-cracking efficiency of naphtha feedstocks by mixed/separate processing

Popis výsledku anglicky

Naphtha feedstock used for the steam-cracking process is typically blended from several hydrocarbon source streams of composition varying in a broad range. This study aims at evaluation of the potential yield improvement, which could be obtained by separate steam-cracking of light and heavy sub-streams using tailored process parameters for each of the sub-streams. Laboratory pyrolysis reactor was used for both separate and blend processing of the naphtha feedstocks in the temperature range of 760–810 C, and different blending ratios. At maximum temperature, pyrolysis of light naphtha provides ethylene yield 24.1 wt. %, while only 13.6 wt. % of ethylene was obtained from heavy naphtha. Both, ethylene and propylene yield express decreasing trend with increasing content of heavy naphtha in blended feedstock. Obtained results suggest possibility of mutual effects between components resulting in non-linear dependence of products yields on the blending ratio, therefore a principle of additivity cannot be assumed. A potential for improvement of ethylene yield by 1.1 wt. % is shown on example of processing scenario.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/LO1613" target="_blank" >LO1613: Výzkum nových materiálů pro chemický průmysl</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Analytical and Applied Pyrolysis

ISSN

0165-2370

e-ISSN

—

Svazek periodika

146

Číslo periodika v rámci svazku

March 2020

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

"article number 104768"

Kód UT WoS článku

000513948700011

EID výsledku v databázi Scopus

2-s2.0-85078606803