Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 617-45-8, Name is DL-Aspartic Acid, SMILES is NC(CC(O)=O)C(O)=O, belongs to amides-buliding-blocks compound. In a document, author is Anderson, Jakob, introduce the new discover, Safety of DL-Aspartic Acid.
Shear resistance performance of low elastic polymer microspheres used for conformance control treatment
Low elastic polymer microsphere (L-EPM) has been proposed as a functional polymer microsphere these years. L-EMP has the excellent deformation ability in the porous medium due to the low storage modulus. Herein, one kind of L-EPM with storage modulus (G’) of 23.6 Pa was prepared by inverse suspension polymerization. The shear resistance of L-EPM was researched by using core flooding experiment and high shear rate emulsifier. The conformance control behavior of L-EPM was investigated by using double parallel sandpack flooding experiment. The results showed that L-EPM was a kind of swollen particle gel with three-dimensional net structure and contained amide, carboxyl, and sulfonate groups. The mechanism of water swelling property was mainly due to the formation of hydrogen bonds, hydrolysis of hydrophilic groups and the diffusion caused by osmotic pressure difference. Compared with high elastic polymer microspheres (H-EPM) and low elastic preformed particle gel (L-PPG), L-EPM had better shear resistance in the porous medium and the well casing perforation. In addition, the critical shear points of L-EPM was proposed in this work. Due to the better shear resistance and deformation ability, the conformance control behavior of L-EPM showed that L-EPM was a promising conformance control agent in the heterogeneous reservoirs. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 617-45-8 is helpful to your research. Safety of DL-Aspartic Acid.