Results 101 to 110 of about 46,783 (309)

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Recycling Used Lubricating Oil Using Untreated, Activated and Calcined Clay Methods [PDF]

, 2016
This study addresses recycling of used lubricating oils treated using different methods involving rmtreated clay as the control sample, clay activation and calcined clay methods. A recycling process of the used lube oil was carried out which eventually
Ajalo, I. J., Ayoola, A. A., Babatunde, Damilola Elizabeth, Efeovbokhan, Vincent Enon, Ifeoluwa, Ajalo, Udonne, Joseph Denis   +5 more
core  

Recovery Alternatives for Used Lubricating Oils

EPISTEMUS: Ciencia, Tecnología y Salud, 2022
Used lubricating oil is a valuable resource, in its original and residual form, for this reason some methods for its recovery based on its life cycle were identified as alternatives for its management through management schemes that consider technological and treatment aspects, for the recovery of the base material and its possible reintegration into ...
openaire   +1 more source

Box–Behnken optimization and ANN‐ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley   +1 more source

Re-Refining of Waste Lubricating Oil by Solvent Extraction [PDF]

Mehran University Research Journal of Engineering and Technology, 2011
Re-refining of waste lubricating oil by solvent extraction is one of the potential techniques. The advantages of solvent extraction technique practically offers from environmental and economic points of view have received due attention.
Hassan Ali Durrani, Muhammed Ibrahim Panhwar, Rafique Akthar Kazi   +2 more
doaj  

Simulation of the Influence of Eugenol (C10H12O2) on Jatropha curcas Linn. Oil to Improve Physical Properties of Base Oil [PDF]

BIO Web of Conferences
Lubrication in machining process plays a very important role in machining because it increases the productivity and quality of the machining process. Today, most Metalworking Fluids (MWF) are petroleum based ones.
Ma’arif Moch. Syamsul, Wardana I Nyoman Gede, Purnami Purnami, Darmadi Djarot Bangun, Novareza Oyong, Darsono Cahyo Henan, Sugiarto Sugiarto, Abidin Zainal   +7 more
doaj   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Regeneration of used lubricating oil as a source of energy

Arid Zone Journal of Engineering, Technology and Environment, 2001
Conservation of natural resources by refining used lubricating oil was attempted in this work. Used lubricating oil was purified and distilled. The distillates obtained were divided into two temperature ranges of 60 - 210°C and 210 - 310°C.
A. T. Abdulrahim, K. B. Highina, M. L. Usman   +2 more
doaj  

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source