A Polystyrene supported Scandium (III) microencapsulated Lewis acid catalyst for hydrothermal carbonization of glucose

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F23%3A43927322" target="_blank" >RIV/60461373:22320/23:43927322 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0961953423002490" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0961953423002490</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biombioe.2023.106950" target="_blank" >10.1016/j.biombioe.2023.106950</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Polystyrene supported Scandium (III) microencapsulated Lewis acid catalyst for hydrothermal carbonization of glucose

Popis výsledku v původním jazyce

Hydrothermal carbonization of glucose in the absence and presence of recoverablesolid polystyrene-supported microencapsulated Lewis acid catalyst has been carriedout at 180 and 200 ºC for 6, 12, and 24 h using either 0.25 g or 0.5 g of catalyst. Theeffects of temperature, residence time, and catalyst loading on the resulting hydrocharswere investigated. At the lowest temperature (180 ºC) and the shortest residence time(6 h) without the presence of catalyst, the glucose conversion was the lowest asexpected. No hydrochar was formed at 180 ºC for 6 h without using any catalyst. Incatalytic runs, the formation of hydrochar was observed under identical conditionsalthough the yields of hydrochar were low. The use of the catalyst increased the yieldof acid compounds (acetic, glycolic, lactic and levulinic) at the expense of 5-hydroxymethylfurfural under identical conditions. Except for 180 ºC for 6 and 12 h, theuse of catalyst decreased the yield of hydrochars. The use of the catalyst led toincreasing the diameter of carbon sphere particles under identical conditions. Thepresence of the catalyst resulted in the production of a notable amount, approximately20% by weight, of levulinic acid as a by-product.

Název v anglickém jazyce

A Polystyrene supported Scandium (III) microencapsulated Lewis acid catalyst for hydrothermal carbonization of glucose

Popis výsledku anglicky

Hydrothermal carbonization of glucose in the absence and presence of recoverablesolid polystyrene-supported microencapsulated Lewis acid catalyst has been carriedout at 180 and 200 ºC for 6, 12, and 24 h using either 0.25 g or 0.5 g of catalyst. Theeffects of temperature, residence time, and catalyst loading on the resulting hydrocharswere investigated. At the lowest temperature (180 ºC) and the shortest residence time(6 h) without the presence of catalyst, the glucose conversion was the lowest asexpected. No hydrochar was formed at 180 ºC for 6 h without using any catalyst. Incatalytic runs, the formation of hydrochar was observed under identical conditionsalthough the yields of hydrochar were low. The use of the catalyst increased the yieldof acid compounds (acetic, glycolic, lactic and levulinic) at the expense of 5-hydroxymethylfurfural under identical conditions. Except for 180 ºC for 6 and 12 h, theuse of catalyst decreased the yield of hydrochars. The use of the catalyst led toincreasing the diameter of carbon sphere particles under identical conditions. Thepresence of the catalyst resulted in the production of a notable amount, approximately20% by weight, of levulinic acid as a by-product.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Biomass &amp; Bioenergy

ISSN

0961-9534

e-ISSN

—

Svazek periodika

177

Číslo periodika v rámci svazku

October 2023

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

106950

Kód UT WoS článku

001079367700001

EID výsledku v databázi Scopus

2-s2.0-85169837408