Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)最新文献

{"title":"Meet the Associate Editor","authors":"Sambhaji Shinde","doi":"10.2174/240552041605231218123439","DOIUrl":"https://doi.org/10.2174/240552041605231218123439","url":null,"abstract":"","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Carbon Nanotubes-Supported CuMn2O4 Nanocomposites for Highly Efficient Degradation of Methylene Blue Dye","authors":"Xuyi Chen, Tianlu Chen, N. Fathy, Yousheng Tao","doi":"10.2174/0124055204262886231002031407","DOIUrl":"https://doi.org/10.2174/0124055204262886231002031407","url":null,"abstract":"Waste water containing dyes causes serious environmental problems in both aesthetic and toxicological aspects. Although physicochemical and biological treatment processes have been investigated, functional materials are highly demanded for improving the removal efficiency of dye from wastewater To synthesize a heterojunction nanocomposite of CuMn2O4/carbon nanotubes (CNTs) with outstanding catalytic performance for the effective degradation of methylene blue (MB) dye. Copper manganese oxide-carbon nanotubes (CuMn2O4/CNTs) nanocomposite was prepared by a solvothermal method. The structure and morphology of the samples were characterized with X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopic (TEM), and nitrogen adsorption/desorption on the samples at 77 K. The degradation of methylene blue dye was studied using the prepared nanocomposite as a catalyst. CuMn2O4 of small particles was loaded on CNTs, forming a porous structure with a specific surface area of 43.5 m2/g and a total pore volume of 0.17 cm3/g. The optimum conditions for achieving full breakdown in 10 minutes are 1g/L of catalyst dosage and a range of initial concentrations at 50-100 mg/L of MB dye at pH 4. The synthesized CuMn2O4/CNTs nanocomposite exhibited a good prospect as catalyst materials for the decontamination of wastewater polluted with dyes.","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139328970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Innovations and Patents of Lithium Extraction Techniques from Various Lithium Bearing Solutions","authors":"Sewar Aljarrah, A. Al-Rawajfeh, Muhammad Kashif Shahid, Qamar Ul Islam","doi":"10.2174/0124055204266229230927035347","DOIUrl":"https://doi.org/10.2174/0124055204266229230927035347","url":null,"abstract":"Lithium, with its exceptional properties, such as remarkable redox activity and high specific heat capacity, finds widespread applications in thermonuclear fusion reactors, ceramics, batteries, aerospace, glass, metal additives, and photo-electricity. The growing demand for clean technology, especially electric cars and energy storage, has led to a significant rise in global lithium production. Brines now constitute a major portion of the world's lithium output, driving research in lithium extraction and purification methods. This study examines recent innovative research and patents, including various extraction techniques, sorbents, electrolysis-based approaches, and cost-effective methods. The study identifies gaps and limitations in existing lithium extraction technology and proposes future research areas to advance the field. The bibliographic analysis underscores the importance of further investigation to overcome current obstacles and drive progress in lithium extraction.","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Investigation on Effect of Bubbles Arrangement and Volume Fraction on Apparent Viscosity of Bubbly Suspensions","authors":"Zheng Jia, Mingjun Pang, Rui Niu","doi":"10.2174/0124055204268474230922054143","DOIUrl":"https://doi.org/10.2174/0124055204268474230922054143","url":null,"abstract":"Bubbly suspensions can be often run into in natural and industrial processes. The addition of bubbles with different sizes can lead to a significant change in the rheological properties of a matrix liquid. It is extremely significant to fully understand the rheological properties of bubbly suspensions for improving process efficiencies and optimizing productive processes. Bubbly suspensions can be often run into in natural and industrial processes. The addition of bubbles of different sizes can greatly change the rheological properties of matrix liquid. It is extremely significant to fully understand the rheological properties of bubbly suspensions for improving process efficiencies and optimizing productive processes. The objective of this study is to explore qualitatively the physical law and internal mechanism of the apparent viscosity of suspensions formed by a Newtonian liquid containing different bubbles. Based on the parallel plate model of shear flow, the volume of fluid method (VOF) was used to investigate the effect of bubble arrangement and volume fraction on the apparent viscosity of bubbly suspensions at low volume fractions. The piecewise linear interface calculation (PLIC) method was applied to reconstruct the interface based on the phase function. The present results show that the relative viscosity (ηr) of bubbly suspensions shows a nonlinear change with an increase in bubble volume fraction (ϕ). When the capillary number (Ca) is less than 0.6, ηr shows a nonlinear increase with an increase in ϕ (ηr increases from 1 to 1.03 with an increase in ϕ from 0 to 2.94% at Ca=0.1). However, Ca is greater than or equal to 0.6, ηr shows a nonlinear decrease with an increase in ϕ (ηr decreases from 1 to 0.92 with an increase in ϕ from 0 to 2.94% at Ca=2.5). Even if ϕ is the same, different arrangements of bubbles can lead to different magnitudes of apparent viscosity of bubbly suspensions As ϕ increases, the region of low shear rate increases, which leads to a non−linear decrease in the relative viscosity. When ϕ is the same, the different arrangements of bubbles can lead to different effects on bubble dynamics and flow fields. This results in different viscous dissipation in bubbly suspensions. Thus, the apparent viscosity of bubbly suspensions is different. Nothing","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"161 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Industrial Processing of Commercially Significant Enzymes","authors":"A. Vimal, Gauresh Sharma","doi":"10.2174/2405520416666230301112734","DOIUrl":"https://doi.org/10.2174/2405520416666230301112734","url":null,"abstract":"\u0000\u0000Enzymes are highly specific and highly sensitive biocatalyst proteins that play important roles in various life processes. As they are proteins, thus, they are composed of amino acids joined together to form chains. These amino acids are linked by peptide bonds that form between the amino-terminal and carboxylic end. There is the multifaceted application of enzymes in various sectors that include food, textile, paints, pharmaceuticals, leather, oil industries, etc. There is a wide range of sources available for the extraction of enzymes. The commercially important enzymes are generally harvested from microbial sources. Some enzymes are produced extracellularly while some enzymes are produced intracellularly. The production of this bioactive compound could be enhanced by applying suitable optimization techniques, genetic engineering tools, and other modern techniques. One of the major challenges in the commercial production of enzymes is their extraction in pure form without losing their properties. Extraction of enzymes starts from upstream processing that mainly includes two types of fermentation; one is submerged fermentation and another one is solid-state fermentation. After upstream processing, downstream processing is followed which includes cell disruption, filtration, sedimentation and centrifugation, flocculation and coagulation, and chromatography. Then, enzyme purification strategies are followed (salting-out method, dialysis, gel filtration, ion-exchange chromatography, gel electrophoresis. The purpose of down streaming is to purify and concentrate the enzyme from the complex bulk matrix. A significant amount of total production cost is contributed by downstream processing. The review discusses the industrial importance of enzymes and their downstream processing techniques economically and sustainably.\u0000","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80671482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Metal Sulfides/Graphene Nanocomposites for theApplications in Supercapacitors. II: Ni-Mn-S/Mn-Cu-O/Graphene","authors":"Yueqiu Chen, K. P. Annamalai, Tianlu Chen, Xuyi Chen, Yousheng Tao","doi":"10.2174/2405520415666220425110022","DOIUrl":"https://doi.org/10.2174/2405520415666220425110022","url":null,"abstract":"Background: Excessive use of fossil energy has exacerbated global warming, and the goal of carbon neutralization has been put on the agenda. In order to make full use of renewable energy and reduce greenhouse gas emissions, it is urgent to develop environment-friendly energy storage devices. We previously reported metal sulfides/ graphene nanocomposites for the applications in supercapacitors (I. NiS/graphene). Recent work was presented as the paper in the series (II. Ni-Mn-S/Mn-Cu-O/graphene). Objective: To synthesize graphene-supported multi-metal sulfides for electrochemical capacitance storage. Method: The materials were prepared with a two-step hydrothermal method. Samples were characterized by field emission scanning electron microscopy, X-ray powder diffraction, and electrochemical measurements. Results: The as-fabricated electrode exhibited a specific capacitance of 566 F g–1 at the current density of 1 A g–1 and a rate of 68% at 10 A g–1. The materials retained 75.8% of the initial capacitance after 1000 charge-discharge cycles at 5 A g–1. The results suggest optimum Ni-Mn-S/Mn-Cu-O/graphene composites for supercapacitor applications. Conclusion: The Ni-Mn-S/Mn-Cu-O/graphene composites with nanosheet structures were prepared with a two-step hydrothermal method. The materials showed enhanced electrochemical capacitance performances superior to the individual components.","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"15 2","pages":"103-110"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147882616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Metal Sulfides/Graphene Nanocomposites for the Applications in Supercapacitors. Part I: NiS/Graphene","authors":"Liu Lile, K. P. Annamalai, Yousheng Tao","doi":"10.2174/2405520408666160628094856","DOIUrl":"https://doi.org/10.2174/2405520408666160628094856","url":null,"abstract":"NiS/reduced graphene oxide nanocomposites were prepared by a hydrothermal method. Electron microscope observation revealed that the materials were of thin sheet-like structure and X-ray diffraction indicated the NiS of high-purity on the graphene nanosheets. Nitrogen adsorption on the samples at 77 K revealed the porous properties. Such materials were pseudo-active, exhibiting high specific capacitance of 978 F g1 at 1 A g1 in 3M KOH and high capacitance retention of 76% over 1000 cycles at 5 A g1, promising for applications in supercapacitors. Keywords: Electrode, energy storage, graphene, nanocomposite, nickel sulfide, supercapacitor.","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"9 1","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2016-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147920465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effective Removal of High-Concentration Sulfur Dioxide by Nitrogen-Modified Activated Carbon Fibers","authors":"L. Yongjun, Mengdan Gong, Wubo Fan, Xiaoling Liu, H. Yin, Chengyun Yan","doi":"10.2174/2211334707666150115215545","DOIUrl":"https://doi.org/10.2174/2211334707666150115215545","url":null,"abstract":"","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"1 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2014-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88409332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current Patents on Dye Wastewater Treatment","authors":"Li Yu, Mei Han, Fang He, Yihui Chen","doi":"10.2174/2211334707999140221165350","DOIUrl":"https://doi.org/10.2174/2211334707999140221165350","url":null,"abstract":"","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"39 1","pages":"167-175"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90942960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Symposium: Report of the 2013 International Symposium on Adsorption Nanoscience and Nanotechnology","authors":"Y. Tao","doi":"10.2174/221133470603140411125224","DOIUrl":"https://doi.org/10.2174/221133470603140411125224","url":null,"abstract":"","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"139 1","pages":"194-194"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86562046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}