Banca de QUALIFICAÇÃO: LIVIA LUISA MELO DE CARVALHO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : LIVIA LUISA MELO DE CARVALHO
DATE: 04/03/2021
TIME: 14:30
LOCAL: Videoconferência
TITLE:

Síntese e caracterização de material adsorvente proveniente do resíduo lignocelulósico da produção de etanol de segunda geração e seu uso na minimização das etapas da produção do açúcar

KEY WORDS:

lignocellulosic material; activated charcoal; clarification.

PAGES: 69
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

Sugarcane is an important raw material for the sugar production chain, first and second generation ethanol, as well as for bioenergy. The juice from this cane is a complex material, leading to an increase in the cost of the white crystal sugar process. Among the process control parameters, color stands out as the most important due to the difficulty of its removal, as there are color precursor compounds. In Brazilian plants, sulfitation is the technique widely used to reduce color during the manufacture of white crystal sugar, although it has many limitations, such as sulfur residues in sugar. Thus, there are barriers to the commercialization of Brazilian white crystal sugar. The general objective of this study is the use of lignocellulosic residue from the production of second generation ethanol that uses cane straw as biomass, for the production of activated carbon to clarify the sugarcane juice. Thus, it is proposed to obtain adsorbent material to minimize the stages of obtaining sugar production. Initially, biochar was prepared followed by activation varying pressure, temperature, ratio (biochar / activating agent) and activation time. Activated carbon application studies were carried out and characterized by% adsorption. In all applications studied, the broth clarification. The highest% occurred in activation C with pressure (50 Kpa); temperature (400 ºC); ratio (1: 1) and time (3 h) with 21.67% adsorption.

BANKING MEMBERS:
Interna - 426640 - FABIANE CAXICO DE ABREU GALDINO
Externo à Instituição - FELIPE THIAGO CALDEIRA DE SOUZA
Externo ao Programa - 1121112 - JOAO INACIO SOLETTI
Externo à Instituição - MOZART DALTRO BISPO - Tiradentes
Presidente - 1646575 - RUSIENE MONTEIRO DE ALMEIDA