scholarly journals INVESTIGATION OF QUALITY CHARACTERISTICS OF UNIVERSAL SORBENTS USED AT UFA REFINERIES

ÈKOBIOTEH ◽  
2020 ◽  
Vol 3 (4) ◽  
pp. 667-672
Author(s):  
Yu.R. Galiullina ◽  
◽  
A.A. Kulagin ◽  
Keyword(s):  
Absorption Capacity ◽  
Oil Refining ◽  
Peat Moss ◽  
Analysis Method ◽  
Drying Oil ◽  
Sphagnum Peat Moss ◽  
Oil Sorbents ◽  
Quantitative Analysis Method ◽  
Porous Sorbents ◽  
High Absorption

Determined the efficiency of use and capacity of oil absorption of natural large-dispersed hydrophilic isotropic-porous universal sorbent “Canadian Sphagnum Peat Moss” and organic finely-dispersed coarse hydrophilic isotropic-porous sorbents: “Profsorb”, “Lessorb”, “STsN-2” in relation to various environments and products of oil refining. The quantitative analysis method was carried out according to GOST 33627-2015. The obtained results showed that the high absorption capacity when bottling gasoline, kerosene and drying oil sorbents “Lessorb” and “STsN-2”, when bottling oil sorbents No. 1, “Lessorb” and “STsN-2”, when bottling benzene, p-xylene and o-xylene – sorbents “Profso”, “STsN-2”.

scholarly journals Macroporous Oil-Sorbents with a High Absorption Capacity and High-Temperature Tolerance Prepared through Cryo-Polymerization

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1620 ◽  
Author(s):  
Haleem ◽  
Wang ◽  
Li ◽  
Hu ◽  
Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Organic Solvents ◽  
Thermo Gravimetric Analysis ◽  
Temperature Tolerance ◽  
Absorption Capacity ◽  
Synthesis Process ◽  
Gravimetric Analysis ◽  
High Temperature Tolerance ◽  
Oil Sorbents ◽  
High Absorption

The facile preparation and admirable performance of macro-porous poly(lauryl acrylate)-based oil-sorbents for organic solvents and oils are reported in this manuscript. Cryo-polymerizations of lauryl acrylate (LA) with ethylene glycol dimethacrylate (EGDMA) as the cross-linker were carried out at temperatures below the freezing point of the polymerization mixture. The polymerization medium and pore-forming agent was 1,4-dioxane. The influences of the total monomer concentration, EGDMA content and cryo-polymerization temperature on the structure of the obtained P(LA-co-EGDMA) cryogels were investigated with the techniques of Fourier transform infrared spectroscopy, scanning electron microscopy, contact angle measurement and thermo-gravimetric analysis. Through the modulation of the crosslinking density and porosity of these cryogels, the P(LA-co-EGDMA) oil-sorbents demonstrated a high absorption capacity for organic solvents and oils, recyclability and high-temperature tolerance. The absorption capacity reached 20–21 and 16–17 g/g for toluene and gasoline oil, respectively. Those fabricated sorbents survived high temperatures up to 150 °C without any change in absorption capacity as well as porosity. Considering the convenient synthesis process and absorption performance, the present work offers a remarkable opportunity to bring polymer cryogels to practical application in waste oil clean-up.

REMOVAL OF ZINC (II) FROM AQUEOUS SOLUTIONS BY ROMANIAN SPHAGNUM PEAT MOSS

2007 ◽  
Vol 6 (3) ◽  
pp. 205-209 ◽  
Author(s):  
Angelica Kicsi ◽  
Doina Bilba ◽  
Matei Macoveanu
Keyword(s):  
Aqueous Solutions ◽  
Peat Moss ◽  
Sphagnum Peat ◽  
Sphagnum Peat Moss

An LIBS quantitative analysis method for alloy steel at high temperature based on transfer learning

2018 ◽  
Vol 33 (7) ◽  
pp. 1184-1195 ◽  
Author(s):  
Jianhong Yang ◽  
Xiaomeng Li ◽  
Huili Lu ◽  
Jinwu Xu ◽  
Haixia Li
Keyword(s):  
High Temperature ◽  
Quantitative Analysis ◽  
Regression Model ◽  
Transfer Learning ◽  
Alloy Steel ◽  
Room Temperature ◽  
Analysis Method ◽  
Quantitative Analysis Method

Information learnt from spectra at room temperature is transferred to assist in building a better regression model at high temperature.

Effects of processing on peat moss microflora

1988 ◽  
Vol 34 (2) ◽  
pp. 131-133 ◽  
Author(s):  
Yvon Cormier ◽  
Anne Mériaux ◽  
Gilles Brochu
Keyword(s):  
Peat Soil ◽  
Dry Weight ◽  
Peat Moss ◽  
Processing Plant ◽  
Soil Drying ◽  
Sphagnum Peat ◽  
Plant Soil ◽  
Sphagnum Peat Moss ◽  
Large Numbers

We studied the microflora of Quebec sphagnum peat moss samples taken from five different locations in a peat moss processing plant: soil, drying stacks, sedimented dust (walls and floor), and in bagged peat moss. Large numbers of microorganisms were found; the predominant ones were of the genus Monocillium (up to 112 × 106 colonies/g of dry peat) and the genus Penicillium (320 × 104 colonies/g dry weight). These moulds were more abundant in the processed peat moss than in the peat soil (e.g., Monocillium: soil, 138 × 103; processed peat, 112 × 106). Aspergillus spp. were absent in all five sample sites. We conclude that Quebec peat moss contains large quantities of microorganisms and that moulds become more concentrated during the processing of the peat from the soil to the final product.

Understanding the unique interaction of amine-containing ionic compounds with SO2 for high absorption capacity

RSC Advances ◽  
2013 ◽  
Vol 3 (48) ◽  
pp. 25944 ◽  
Author(s):  
Hyunjoo Lee ◽  
Young Mee Jung ◽  
Keun Im Lee ◽  
Hoon Sik Kim ◽  
Ho Seok Park
Keyword(s):  
Absorption Capacity ◽  
Ionic Compounds ◽  
High Absorption

scholarly journals Capture of Acidic Gases from Flue Gas by Deep Eutectic Solvents

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1268
Author(s):  
Yan Wang ◽  
Shuhang Ren ◽  
Yucui Hou ◽  
Weize Wu
Keyword(s):  
Hydrogen Bond ◽  
Flue Gas ◽  
Deep Eutectic Solvents ◽  
Absorption Capacity ◽  
Physical Interaction ◽  
Co2 Absorption ◽  
Physicochemical Interaction ◽  
Acidic Gases ◽  
New Strategies ◽  
High Absorption

Up to now, many kinds of deep eutectic solvents (DESs) were investigated for the capture of acidic gases from flue gases. In this review, non-functionalized and functionalized DESs, including binary and ternary DESs, for SO2, CO2 and NO capture, are summarized based on the mechanism of absorption, physical interaction or chemical reaction. New strategies for improving the absorption capacity are introduced in this review. For example, a third component can be introduced to form a ternary DES to suppress the increase in viscosity and improve the CO2 absorption capacity. DESs, synthesized with halogen salt hydrogen bond acceptors (HBAs) and functionalized hydrogen bond donors (HBDs), can be used for the absorption of SO2 and NO with high absorption capacities and low viscosities after absorption, due to physicochemical interaction between gases and DESs. Emphasis is given to introducing the absorption capacities of acidic gases in these DESs, the mechanism of the absorption, and the ways to enhance the absorption capacity.

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