PROTIC IONIC LIQUIDS AS HYDRATE INHIBITORS

• Grant number: 20/06315-7
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2020
• End date: March 31, 2025
• Field of knowledge: Engineering - Chemical Engineering
• Principal Investigator: Mariana Conceição da Costa
• Grantee: Débora Costa do Nascimento
• Host Institution: Faculdade de Engenharia Química (FEQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated scholarship(s): 22/05244-4 - Protic Ionic Liquids as Hydrate Inhibitors, BE.EP.DR

Abstract

Hydrates can be defined as crystalline structures, formed by water, with cavities where light gases are imprisoned. Its formation in pipes and equipment of the petroleum industry may cause problems in terms of flow assurance for offshore petroleum and natural gas production. Hydrate formation may also compromise good functioning of primary processing in platforms. Due to favorable conditions, such as low temperature, high pressure and presence of gas, hydrate agglomerations might be formed in pipes, causing blockage of flow, which might jeopardize production by leading to local pressure increase, resulting in pipeline rupture risk. Therefore, preventing hydrate formation by inhibitor injection is common practice in the petroleum industry. However, high costs related to current inhibitor injection processes for flow assurance and the use of formulations with high inhibitor content have lead the scientific community to search for new substances with inhibitor traits. In this context, Ionic Liquids (IL) stand out, as they can behave as both kinetic and thermodynamic inhibitors. Additionally, ILs present advantages over conventional inhibitors, such as low volatility, thermal stability, low flammability and versatility. An easily synthesized and low cost type of IL is known as Protic Ionic Liquid (PIL), which will be the focus of this project. Thus, the aim of this project is to identify and investigate the applicability of PILs as hydrate inhibitors. This study is going to be divided in: pre-screening of PILs, solid-liquid equilibria of PILs in aqueous media, prediction of hydrate temperature dissociation in the presence of PILs, experimental determination of hydrate P-T diagrams with PIL addition and thermodynamic modelling of hydrate equilibria.

Scientific publications

(7)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

SOSA, FILIPE HOBI BORDON; TEMOTEO, FLAVIO ANDRADE; DIAS, RAFAEL MACEDO; NASCIMENTO, DEBORA COSTA DO; NETO, ANTONIO MARINHO BARBOSA; DA COSTA, MARIANA CONCEICAO. Flash point of binary and ternary mixture of biojet blends: Experimental data and modeling. Fluid Phase Equilibria, v. 576, p. 11-pg., 2024-01-01. (14/21252-0, 20/06315-7)

VILAS-BOAS, SERGIO M.; DO NASCIMENTO, DEBORA C.; DIAS, RAFAEL M.; ROZO, GABRIEL H.; BARBOSA NETO, ANTONIO M.; FERREIRA, OLGA; PINHO, SIMAO P.; DA COSTA, MARIANA C.. Flash point of binary and ternary monoterpene mixtures: Experimental and modeling. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, v. 172, p. 10-pg., 2023-03-09. (20/06315-7, 14/21252-0, 22/00537-3)

NASCIMENTO, DEBORA COSTA DO; PELAQUIM, FERNANDA PALUDETTO; BERTONCIN, THIAGO ALVES; NETO, ANTONIO MARINHO BARBOSA; DA COSTA, MARIANA CONCEICAO. hr Thermodynamic modeling of methane hydrate equilibrium conditions in the presence of imidazolium based ionic liquids with the van der Waals-Platteeuw solid solution approach along with SRK and CPA EoS. Fluid Phase Equilibria, v. 571, p. 9-pg., 2023-05-02. (22/05244-4, 18/19198-9, 20/06315-7)

DO NASCIMENTO, DEBORA COSTA; SOUZA, MAURICIO PRADO DE OMENA; HENTGES, LAURA DE OLIVEIRA; DIAS, RAFAEL MACEDO; NETO, ANTONIO MARINHO BARBOSA; DA COSTA, MARIANA CONCEICAO. Mixture Flash Point Calculation: Recent Advances and a Closer Look at Biodiesel. ACS CHEMICAL HEALTH & SAFETY, v. 31, n. 1, p. 22-pg., 2024-01-08. (20/06315-7)

SOUZA, MAURICIO PRADO DE OMENA; DO NASCIMENTO, DEBORA COSTA; VOLPATTO, DIEGO TAVARES; RIBEIRO, GUSTAVO GONDRAN; NETO, ANTONIO MARINHO BARBOSA; DA COSTA, MARIANA CONCEICA. Modeling flash points of biofuels using neural networks. Fluid Phase Equilibria, v. 596, p. 10-pg., 2025-09-01. (20/06315-7)

COSTA DO NASCIMENTO, DEBORA; CHIARELLO, CONRADO; MARINHO BARBOSA NETO, ANTONIO; SUM, AMADEU K.; DA COSTA, MARIANA CONCEICAO. Gas Hydrate Formation with Protic Ionic Liquids under Multiphase Flow Conditions. ENERGY & FUELS, v. 39, n. 23, p. 11-pg., 2025-05-29. (22/05244-4, 20/06315-7)

NASCIMENTO, DEBORA COSTA DO; CONTI, DANILO CESAR; NETO, ANTONIO MARINHO BARBOSA; COSTA, MARIANA C.. Flash point measurement and prediction of dodecane plus ethanol plus FAEE systems. FUEL, v. 306, DEC 15 2021. (14/21252-0, 20/06315-7)