Thermo-catalytic co-pyrolysis of biomass and high-density polyethylene for improving the yield and quality of pyrolysis liquid

Energy ◽  
2021 ◽  
pp. 120231
Author(s):  
Md Hafizur Rahman ◽  
Prakashbhai R. Bhoi ◽  
Arpita Saha ◽  
Vivek Patil ◽  
Sushil Adhikari
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Yield And Quality ◽  
Pyrolysis Liquid ◽  
Pyrolysis Of Biomass

scholarly journals Prolonged Storage of Lemons Using Individual Seal-packaging

1990 ◽  
Vol 115 (2) ◽  
pp. 251-255 ◽  
Author(s):  
E. Cohen ◽  
S. Lurie ◽  
B. Shapiro ◽  
S. Ben-Yehoshua ◽  
Y. Shalom ◽  
...  
Keyword(s):  
Water Potential ◽  
Water Relations ◽  
High Density Polyethylene ◽  
Storage Period ◽  
High Density ◽  
Prolonged Storage ◽  
Citrus Limon ◽  
Plastic Film ◽  
Maturity Indices

`Eureka' lemons [Citrus limon (L.) Burro. f.] treated for commercial storage were held for 6 months at 13C. One-half of the fruits were individually sealed in high-density polyethylene (HDPE) plastic film and half not sealed. The HDPE-seaIed lemons showed little change in the water relations characteristics, while unsealed lemons lost weight and decreased in water potential throughout the storage period. The maturity indices in the two treatments were generally similar during the first 3 months of storage, after which maturation of wrapped fruit was slower than that of the control. The overall marketable quality of the fruit was higher in HDPE-sealed lemons than in unsealed. From these results, it appears feasible to introduce seal packaging in packing lines where lemons will be placed in extended storage.

Application of Nondestructive Testing in Quality Controlling of High-Density Polyethylene Silicore Plastic Duct

2013 ◽  
Vol 470 ◽  
pp. 693-696
Author(s):  
Bai Yan Gong ◽  
Yu Hong Lu ◽  
Juan Ren
Keyword(s):  
Nondestructive Testing ◽  
Product Quality ◽  
High Density Polyethylene ◽  
High Density ◽  
Important Indicator ◽  
Breaking Elongation ◽  
Sampling Inspection ◽  
Weight Impact ◽  
Falling Weight

Some key quality problems has been exposed in several years of quality supervision sampling inspection of industry products for HDPE silicore plastic duct, such as dimension, breaking elongation, performance of falling weight impact and ring stiffness. Quality consistency is an important indicator in evaluating product quality. Nondestructive testing can be used to evaluate the quality of the whole pan and batch of silicore plastic duct, and it will play important role in product quality controlling.

scholarly journals Effect of thawing on the quality of frozen mechanically deboned meat

1990 ◽  
Vol 62 (5) ◽  
pp. 407-415
Author(s):  
L. Riihonen ◽  
P. Linko
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Quality Product

The effect of thawing conditions on the quality of mechanically deboned beef (MDB) and mechanically deboned pork (MDP) recovered using a pressure-based Inject Star deboner was investigated. Samples were recovered using a freshly disinfected machine, and immediately packed in 3 kg portions in high density polyethylene (HDPE)-coated cartons or in Cryovac vacuum bags. Three methods of thawing were used: microwave thawing and thawing at +4°C and at +21°C. All samples were analysed chemically and microbiologically immediately after thawing. Microwave thawing resulted in a better quality product (P

Modelling of stresses and strains in two-layer combined materials at their formation

2019 ◽  
Vol 1-2 (97) ◽  
pp. 12-19
Author(s):  
G.M. Koloskova
Keyword(s):  
High Density Polyethylene ◽  
Bottom Layer ◽  
High Density ◽  
Bottom Plate ◽  
Distribution Dynamics ◽  
Polymer Metal ◽  
First Time ◽  
Practical Implications

Purpose: The aim of the represented study was to model the behaviour of two-layer combined material during its manufacturing. Design/methodology/approach: The model of material layers joining by means of calender method is built in LS-DYNA software on the basis of finite element method. Using the developed model the study of stress and strain condition changes is carried out. Numerical modelling was carried out for two types of two-layer combined materials in similar conditions. First combination was of high-density polyethylene top layer and aluminium foil bottom layer. Second combination was of high-density polyethylene top layer and low- density polyethylene bottom layer. Joining materials had equal thicknesses. Findings: During formation of two-layer combined materials the primary strain always occurs at the bottom plate of the bottom layer. However, the maximum plastic strain will be represented for the layer with lower elastic modulus value. At the point of the highest loading applied to the two-layer combined material the elasticity condition is changed to the plasticity one and the yield process is registered. Practical implications: Multi-layer combined materials are some of the most advanced types of materials. The quality of the joining of the layers, the strains and the stresses arising in their manufacturing process are the main causes of low interlayer strength. It leads to easy exfoliation and destruction of the material. The results of the study may be used to improve the quality of multi-layer combined materials. Originality/value: For the first time the model was developed for the determination of strains and stresses arising during the formation of multi-layer combined materials by means of calendering method. The calculations of the stresses and strains distribution dynamics for two-layer combined materials are represented for polymer-metal and polymer-polymer layers combinations. The results of the study may be of interest to specialists in the field of multi-layer combined materials designing and manufacturing.

scholarly journals Peningkatan Mutu Briket dari Sampah Organik dengan Penambahan Minyak Jelantah dan Plastik High Density Polyethylene (HDPE)

2015 ◽  
pp. 91-96
Author(s):  
Silvia Septhiani ◽  
Eka Septiani
Keyword(s):  
Natural Resources ◽  
High Density Polyethylene ◽  
Alternative Fuel ◽  
High Density ◽  
Cooking Oil

The objective of this research was to looking for the alternative fuel to overcome the limitations of natural resources by using organic garbage and to investigate the improvement quality of biobriket after HDPE and cooking oil addition. Making biobriket with carbonitation organic garbage was a method that is used. The result of the research suggests that the quality of biobriket increased after HDPE and cooking oil addition.  The analysis of water biobriket showed that HDPE was decreased from 13.99% to 13.88% and biobriket of cooking oil is 9.39%. More over the decreasing also happened to the content of the ash, from 25% to 23% biobriket HDPE and 20% to biobriket of cooking oil. Calorific biobriket 4703.27 cal/g, the increasing of HDPE biobriket was 5009.16 cal/g and biobriket of cooking oil 6245.66 cal/g. DOI :http://dx.doi.org/10.15408/jkv.v0i0.3567.

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