Szczegóły publikacji
Opis bibliograficzny
Effect of pretreatment biomass by gas from PVC dehydrochlorination process on maize cob pyrolysis with integrated $CO_{2}$ capture / Wojciech JERZAK, Izabela KALEMBA-REC, Aneta MAGDZIARZ // W: CPOTE 2024 [Dokument elektroniczny] : 8th international conference on Contemporary Problems of Thermal Engineering : towards sustainable & decarbonized energy system: the role of thermal engineering in green growth : Gliwice, Poland, 23-26 September 2024 : conference proceedings / ed. by Tomasz Simla. — Wersja do Windows. — Dane tekstowe. — Silesian University of Technology, 2024. — 1 dysk Flash. — e-ISBN: 978-83-61506-60-7. — S. 83–94. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 93–94, Abstr.
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 155806 |
|---|---|
| Data dodania do BaDAP | 2024-10-30 |
| Rok publikacji | 2024 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Politechnika Śląska |
Abstract
A plentiful source of cellulose, hemicellulose, and lignin is agricultural waste biomass, which can be used sustainably in the pyrolysis process. The quality and yield of pyrolysis products are dependent on the thermal decomposition and degradation of the lignocellulosic biomass. To improve the susceptibility of lignocellulosic matter to degradation, various pretreatment techniques are used: i) mechanical (grinding, cutting); ii) chemical (treatment with alkali and acids); iii) thermal (steam and hot water), and biological (digestion). Maize cob as a representative of agricultural biomass was selected for investigation in this work. First, the biomass was ground and divided into two batches (raw and subjected to chemical pretreatment). The hydrogen chloride-rich gas released in the polyvinyl chloride thermal dehydrochlorination process was used for the pretreatment of maize cob. The raw and pre-treatment maize cob was then pyrolyzed in drop-tube rector at 500 C in a nitrogen atmosphere. To capture chlorides formed in the pyrolysis process and reduce the CO2 content in the pyrolysis gas, the reactor was equipped with a CaO bed. The experimental results showed that the pretreatment of maize cob influenced the yield and composition of pyrolysis products. The char obtained from the pretreatment maize cob contained more carbon (77%) than the char from the untreated biomass (72%). A positive effect on bio-oil yield was also observed, in the case of pretreatment maize cob, which increased to 38% (for untreated biomass it was 33%). On the basis of the gas composition and product yields, the formation of each gas per unit of feedstock was determined. Maize cob after pretreatment with hydrogen chloride has been shown to inhibit CO formation in pyrolysis gases ranging from 155 cm3/g to 78 cm3/g. When hot pyrolysis gases flowed through the CaO bed, CO2 production was reduced from 268 cm3/g to 28 cm3/g (maize cob) and from 104 cm3/g to 39 cm3/g for maize cob after pretreatment with hydrogen chloride.
