Heavy vacuum gas oil (HVGO) is a complex and viscous hydrocarbon stream that is produced as the bottom side product from the vacuum distillation units in petroleum refineries. HVGO is conventionally treated with thermochemical process, which is costly and environmentally polluting. Here, we investigate two petroleum biotechnology applications, namely valorization and bioupgrading, as green appr...

Lemongrass essential oil has many compounds appropriate for application in foods, cosmetics, and pharmaceutical products. Of these, citral is a high-value compound of interest to industry. This work aims evaluate the use vacuum fractional distillation separate lemongrass compounds, producing fractions containing high content. The effect process parameters, namely pressure, type column, energy i...

An integrated membrane distillation (MD) flowsheet, consisting of direct contact (DCMD) and vacuum (VMD) units, was proposed analysed in terms thermal performance water recovery factor, for the first time. The same lab-scale module (40 cm2) used carrying out experiments DCMD VMD at fixed feed operating conditions (deionised 230 L/h ~40 °C) while working permeate side with deionised 18 °C a 20 m...