Used Lubricating Oil Processing for Energy Recovery. I. Applied pyrolysis

2019 ◽  
Vol 70 (10) ◽  
pp. 3527-3531
Author(s):  
Maria Paraschiv ◽  
Cristina Ciobanu ◽  
Radu Kuncser ◽  
Laurentiu Ilie ◽  
Malina Prisecaru ◽  
...  
Keyword(s):  
Heating Rate ◽  
Liquid Fraction ◽  
Chemical Properties ◽  
Lubricating Oil ◽  
Treatment Technique ◽  
Pyrolysis Oil ◽  
Technical Parameters ◽  
Thermal Range ◽  
Oil Processing ◽  
Metallic Compounds

Applied pyrolysis is used in this work as a treatment technique for hydrocarbon fraction recovery of used lubricating oils (ULO) with the aim of its further energetic valorisation. Applied pyrolysis bring also the advantage of a better management of metallic compounds that will be concentrated in the solid residue. In this work, technical parameters have been evaluated to establish their influence on the process evolution with the aim of identifying the adequate parameters for obtaining the maximum liquid fraction. It was found that, for an equilibrated energy balance, the final pyrolysis temperature should not exceed 460�C and the main parameter that affect the pyrolysis oil yield and its physical-chemical properties is the heating rate in the thermal range of decomposition. Activated Zeolites (HZSM-5 type) and Na2CO3 were used as catalysts. The catalysed pyrolysis tests were performed using direct contact between ULO and catalyst, the materials being mixed before processing. Experimental results showed that in non-catalysed pyrolysis an increasing heating rate is slightly reducing the yield of liquid fraction. On the other hand, by using catalysts, the liquid fraction is decreasing. Thus, the highest liquid ratio (81 wt.%) was obtained when the Na2CO3 is used and the process is run under a heating rate of 3-5�C/min. But then, the zeolite HZSM-5 is leading to the highest overall conversion, 95 wt.% at 15-17�C/min, and is positively influence the formation of gas fractions.

scholarly journals Used Lubricating Oil Processing for Energy Recovery. I. Applied pyrolysis

2019 ◽  
Vol 70 (10) ◽  
pp. 3527-3531
Keyword(s):  
Heating Rate ◽  
Liquid Fraction ◽  
Chemical Properties ◽  
Lubricating Oil ◽  
Treatment Technique ◽  
Pyrolysis Oil ◽  
Technical Parameters ◽  
Thermal Range ◽  
Metallic Compounds ◽  
Used Lubricating Oil

Applied pyrolysis is used in this work as a treatment technique for hydrocarbon fraction recovery of used lubricating oils (ULO) with the aim of its further energetic valorisation. Applied pyrolysis bring also the advantage of a better management of metallic compounds that will be concentrated in the solid residue. In this work, technical parameters have been evaluated to establish their influence on the process evolution with the aim of identifying the adequate parameters for obtaining the maximum liquid fraction. It was found that, for an equilibrated energy balance, the final pyrolysis temperature should not exceed 460°C and the main parameter that affect the pyrolysis oil yield and its physical-chemical properties is the heating rate in the thermal range of decomposition. Activated Zeolites (HZSM-5 type) and Na2CO3 were used as catalysts. The catalysed pyrolysis tests were performed using direct contact between ULO and catalyst, the materials being mixed before processing. Experimental results showed that in non-catalysed pyrolysis an increasing heating rate is slightly reducing the yield of liquid fraction. On the other hand, by using catalysts, the liquid fraction is decreasing. Thus, the highest liquid ratio (81 wt.%) was obtained when the Na2CO3 is used and the process is run under a heating rate of 3-5°C/min. But then, the zeolite HZSM-5 is leading to the highest overall conversion, 95 wt.% at 15-17°C/min, and is positively influence the formation of gas fractions. Keywords: Used lubricating oil, pyrolysis, environment, energy

Comparative analysis of production potential in Bulla-deniz and Umid gas-condensate fields

2020 ◽  
pp. 21-26
Author(s):  
E.H. Ahmadov ◽  
Keyword(s):  
Oil And Gas ◽  
Reduction Rate ◽  
Chemical Properties ◽  
Gas Production ◽  
Layer System ◽  
Reservoir Properties ◽  
Technical Parameters ◽  
Recovery Curves ◽  
Well Model ◽  
Drilling Technology

The paper studies the reduction rate of gas production in the wells of Bulla-deniz field drilled to VIII horizon. With this purpose, geological (reservoir properties, oil-gas saturation, net thickness, formation pressure and temperature, formation heterogeneity, multi-layer system, tectonic faults, physical-chemical properties of oil and gas etc.) and technological (well structure, measuring and transportation system, well operation regime, drilling technology etc.) conditions of formation were analyzed and the well model of VII and VIII horizons of Bulla-deniz field using these geological and technical parameters developed as well. For the estimation of impact of geological and technical aspects on production, sensitivity analysis was carried out on the models. The suggestions for elaboration of uncertainty of geological and technical parameters affecting production dynamics were developed. To reveal the reasons for production differences of the wells, it was proposed to install borehole manometers, to obtain the data on pressure recovery curves, drainage area, skin-effect impact, permeability and to develop a study plan of bottomhole zone with acid.

Determination of Solidification Parameters Used for the Prediction of the Thixoformability of Several Steel Alloys

2006 ◽  
Vol 116-117 ◽  
pp. 54-57 ◽  
Author(s):  
Jacqueline Lecomte-Beckers ◽  
Ahmed Rassili ◽  
Marc Robelet ◽  
Claude Poncin ◽  
R. Koeune
Keyword(s):  
Differential Scanning Calorimetry ◽  
Heating Rate ◽  
Liquid Fraction ◽  
Heating Rates ◽  
Scanning Calorimetry ◽  
Steel Alloys ◽  
Fraction Versus ◽  
Solidification Parameters ◽  
Industrial Heating

This paper focuses on the liquid fraction curves of several steels and the correlation between liquid fraction, temperature and heating rate. The work has been performed along two main axes. First, the solid fraction versus temperature has been obtained experimentally by differential scanning calorimetry (DSC), limited to low heating rates. Then, a shift of the liquid fraction curves has been noticed at high industrial heating rates. The quantification of this effect could not be carried out by DSC and required the elaboration of another experimental device.

The Comparative Analysis of Lime Burst between Sintered Shale Brick and Light-Weight Sintered Brick

2012 ◽  
Vol 450-451 ◽  
pp. 683-687
Author(s):  
Bang Biao Huang ◽  
Jia Hua Jing ◽  
Ji Zhen Zhu ◽  
Cai Xia Chen ◽  
Shan Luo
Keyword(s):  
Raw Materials ◽  
Tensile Force ◽  
Chemical Properties ◽  
Light Weight ◽  
Technical Parameters ◽  
Research Production ◽  
Wall Materials ◽  
Physical And Chemical ◽  
And Chemical Properties

The sintered shale brick and light-weight sintered shale brick are both of brittle wall materials. The mechanical and other properties will be affected greatly by tensile force producing the lime burst. Through analysis of physical and chemical properties of raw materials, the reason of lime burst, and the comparative experiments of lime burst, studied on similarities and differences between the two wall materials, providing important technical parameters for the follow-up research, production and construction in the feature.

Developing of High Power Density Diesel Engine Oil

2011 ◽  
Vol 233-235 ◽  
pp. 171-174
Author(s):  
Fu Chuan Huang ◽  
Yun Guo Xie ◽  
Mao Li Yang ◽  
Hui Juan Luo ◽  
Pan Tong ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Power Density ◽  
High Power ◽  
Chemical Properties ◽  
Engine Oil ◽  
Lubricating Oil ◽  
High Power Density ◽  
Operating Characteristics ◽  
Compact Structure ◽  
Base Oil

For high power density diesel engine operating characteristics and its unique compact structure, the development of new high power density diesel engine oil referred to the latest diesel engine oil standard GB 11122-2006. Through the comprehensive assessment of physical and chemical properties, the composite of poly a-olefin (PAO) and polymer esters was determined as base oil,and added high-performance additives. This oil developed has clean dispersion, antioxidation, anti-wear , anti-corrosion and other properties. the lubricating oil can well satisfy the performance requirements of high power density diesel engine.

scholarly journals Oily Sludge Recovery using Microwave Pyrolysis Technique

2021 ◽  
Vol 37 (1) ◽  
pp. 40-45
Author(s):  
Khamael M. Abualnaja ◽  
Hala M. Abo-Dief ◽  
Ola A. Abu Ali ◽  
Abdullah Al-Anazi ◽  
Ashraf T. Mohamed
Keyword(s):  
Heating Rate ◽  
Oil Recovery ◽  
Calorific Value ◽  
Oily Sludge ◽  
Pyrolysis Oil ◽  
Nitrogen Flow Rate ◽  
Microwave Pyrolysis ◽  
Pyrolysis Oils ◽  
Temperature Heating ◽  
Pyrolysis Gases

The oily sludge treatments catch widespread attention. But, management of sludge is difficult and costly undertaking. The oil recovery pyrolysis temperature, heating rate and carbon wt.% is discussed. The recovered aliphatic, aromatic, elemental components and gases were obtained with respect to the nitrogen flow rate. The present work showed that as the heating rate increases, both the %pyrolysis oil and gases increases up to 600 OC, while the %pyrolysis char decreases. Beyond 600 OC, the pyrolysis gases% increases, the pyrolysis oil% decreases while the %pyrolysis char continuous decreases. Gas chromatography, and calorific value used to examine the hydrocarbon compositions of the virgin, sludge, and pyrolysis oils.

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