Integration of the Process for Production of Ethyl Acetate by an Enhanced Extraction Process

Abstract

The paper presents a study on the performance of a conventional plant-producing ethyl acetate from ethanol and acetic acid. Process models were compiled in the simulator Chemcad 7. The impact of key parameters on the performance of individual installation nodes was examined by sensitivity analysis. Three installation approaches are presented and compared: two classic with different heat duties and an improved one. An improved technological solution, with a closed circulation of the extractant as well as the azeotrope subcooling for better extraction is demonstrated. The energy and mass balance of the installation were developed. The proposed enhancement of a technology with significantly reduced consumption of the fresh extractant also offers a deep recovery of the raw materials, i.e., ethyl acetate and ethanol from wastewater. We assumed that the same energy consumption relative to the classic strategy consumption of ethanol was reduced from 0.531 to 0.524 t/tproduct (−1.2%), fresh process water from 2.18 to 1.42 t/tproduct (−34.9%), and wastewater 2.36 to 1.61 t/tproduct (−31.8%). By this, the wastewater total organic loading (TOL), as well as chemical oxygen demand were nine times reduced. The major advantage is achieved through subcooling of azeotrope, which improves extraction efficiency, making the organic phase enriched with ethyl acetate. Therefore, the performance of the product separation node and the whole system are improved.

Effects of Different Solvents on the Total Phenol Content, Total Flavonoid Content, Antioxidant, and Antifungal Activities of Micromeria graeca L. from Middle Atlas of Morocco

“…Then the aerial parts were finely ground in a laboratory homogenized. The extraction method was performed using three different extractor solvents (water, methanol, and ethyl acetate) [ 22 , 26 ], and the solid-to-liquid ratio was 1/20 using a Soxhlet extractor for 8 h. The rotary evaporator was used to concentrate all extracts and then stored in a refrigerator at 4°C.…”

Studies on a Novel Jet Mixer in the Extraction Process

“…The mixture was extracted with water. Extraction of ethanol from the azeotropic mixture with water is used for production of ethyl acetate [25]. The volume ratios of azeotrope to water used in experiments were 1:1 and 1:2.…”

Improvement of exhaust emissions in a diesel engine with the addition of an oxygenated additive to diesel-biodiesel blends

“…It is a colourless liquid, and it has a characteristic odour. Ethyl acetate is produced from the esterification reaction of acetic acid with ethanol as a conventional production method [21], and it has a wide range of applications, mostly as solvents in many industrial processes [22]. Besides, ethyl acetate can also be used as a renewable oxygenated fuel due to its favourable fuel properties such as high oxygen content, low viscosity, low boiling point temperature, low toxicity, and its renewable and biodegradable nature [22][23][24].…”

“…Ethyl acetate is produced from the esterification reaction of acetic acid with ethanol as a conventional production method [21], and it has a wide range of applications, mostly as solvents in many industrial processes [22]. Besides, ethyl acetate can also be used as a renewable oxygenated fuel due to its favourable fuel properties such as high oxygen content, low viscosity, low boiling point temperature, low toxicity, and its renewable and biodegradable nature [22][23][24]. However, in the scientific studies found in the available literature, ethyl acetate is mostly used as a cosolvent for diesel-alcohol blends [25] or gasoline-alcohol blends [26] and as a reactant for biodiesel production [27].…”