Ethyl ester production with immobilized lipase in tin modified SBA‐15: Effect of the support characteristic and reaction conditions

Author:

Parmegiani Marcucci Sílvio Miguel1ORCID,Zunta Raia Rodrigo1,Zanin Gisella Maria1,Arroyo Pedro Augusto1

Affiliation:

1. Departamento de Engenharia Química, Laboratório de Catálise Heterogênea e Biodiesel e Laboratório de Tecnologia Enzimática Universidade Estadual de Maringá Maringá Brazil

Abstract

AbstractThis study investigated the use of immobilized lipase in SBA‐15 and pore‐expanded SBA‐15 surface modified with tin, denoted as SnS23B (mean pore size of 21.6 nm) and SnS8B (with mean pore size of 9.6 nm), respectively, to produce ethyl esters. The effects of various reaction parameters, including biocatalyst type, oil (refined and degummed soybean oil), water addition, oil‐to‐ethanol molar ratio, immobilized lipase concentration, agitation speed, reaction temperature, and glycerol addition, were examined. The optimal conditions were found to be the use of SnS23B as the biocatalyst, degummed soybean oil as the substrate, 1% (w/w oil) water, 1:3 oil‐to‐ethanol molar ratio, 5% (w/w oil) immobilized lipase, 800 rpm agitation speed, and 25°C reaction temperature. The presence of glycerol negatively impacted the reaction. Under the optimal conditions, the mass percent of ethyl ester obtained was 98.2% ± 0.16. The immobilized lipase showed stability, as no lipase activity was detected upon removing the biocatalyst from the reaction. However, the biocatalyst lost 50% of its activity after 10 successive reactions, likely due to thermal deactivation and lipase inhibition caused be the adsorption of glycerol and other chemical species. Attenuated total reflectance analysis supported this hypothesis.

Funder

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Publisher

Wiley

Subject

General Chemical Engineering

Reference65 articles.

1. Evaluation on feedstock, technologies, catalyst and reactor for sustainable biodiesel production: A review

2. ANP Agência Nacional do Petróleo Gás Natural e Biocombustíveis Anuário Estatístico Brasileiro Do Petróleo Gás Natural E Biocombustíveis ANP Rio de Janeiro2021 https://www.gov.br/anp/pt‐br/centrais‐de‐conteudo/publicacoes/anuario‐estatistico/anuario‐estatistico–2021(accessed: June 2021).

3. Significance and Challenges of Biomass as a Suitable Feedstock for Bioenergy and Biochemical Production: A Review

4. State of the Art of Catalysts for Biodiesel Production

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3