Waste plastic oil,generated through the pyrolysis of plastic without oxygen,known as plastic-to-fuel conversion,stands as a promising alternative fuel.This research employs bibliometric analysis,a quantitative method,...Waste plastic oil,generated through the pyrolysis of plastic without oxygen,known as plastic-to-fuel conversion,stands as a promising alternative fuel.This research employs bibliometric analysis,a quantitative method,to comprehensively assess publications in the domain of waste plastic oil integration within reactivity-controlled compression ignition engines.Utilizing Scopus as the primary repository post-2017,the study categorizes information into pivotal aspects,including influential journals,countries,authors,affiliations,document types,thematic areas,sponsors and keywords.The analysis reveals significant contributions from diverse nations,prominently India,China,Turkey and Malaysia.Noteworthy is the prevalence of Energy,Engineering and Chemical Engineering as thematic focal points,with the journal Fuel leading the count followed by the journal Energy emerging as a prominent conduit.Institutional contributions are prolific,led by Gandhi Institute of Technology and Management University and Vellore Institute of Technology.Renowned authors‘Gugulothu S.K’and‘He Z’play a pivotal role in shaping the discourse.The National Natural Science Foundation of China stands out as a primary patron.This bibliometric analysis provides a structured understanding of waste plastic oil integration in reactivity-controlled compression ignition engines,laying the groundwork for future research avenues.The study identifies potential research platforms beyond Scopus,including Web of Science,CrossRef,Science Direct and Google Scholar,as valuable repositories for further exploration.Moreover,after careful observation of the research articles published by the top 10 authors as found in the study,it was found that the authors share a few common characteristics that helped them in advancing the understanding and application of waste plastic oil in reactivity-controlled compression ignition engines.These are also summarized in the present study with supporting data.展开更多
Super plasticizer was synthesized by using coal coking by product washing oil and industrial naphthalene. The results show that sulfonationt time （2.5 h）, sulfonation temperature （160 ℃） and condensation time （5...Super plasticizer was synthesized by using coal coking by product washing oil and industrial naphthalene. The results show that sulfonationt time （2.5 h）, sulfonation temperature （160 ℃） and condensation time （5.0 h） are key factors. Adding oxidizing agent MO in the course of synthesis can decrease the emission of SO2 in exhaust （20%）. Compared with NF, NF-30 have some advantages in lower cost, high water reducing rate （19.7%） and optimum early strengths. Moreover, TGA-DTA and SEM analysis were adopted to research the NF-30 modified concrete on hydyation mechanism. The analysis show that, compared with NF, there are a large number of hydration products such as Ca （OH）2, C-S-H, AFt etc of NF-30, the structure of NF-30 is dense and the performance is good.展开更多
Molten plastics are characterised with high viscosity and low thermal conductivity. Applying falling film pyrolysis reactor to deal with waste plastics can not only improve heat transfer efficiency, but also solve the...Molten plastics are characterised with high viscosity and low thermal conductivity. Applying falling film pyrolysis reactor to deal with waste plastics can not only improve heat transfer efficiency, but also solve the flow problem. In this work, the pyrolysis process of molten polypropylene （PP） in a vertical falling film reactor is experimentally studied, and the influence of heating temperature on pyrolysis products is discussed. It has been found that with the temperature increases from 550 ℃ to 625 ℃, the yield of pyrolysis oil decreases from 74.4 wt% （ 4- 2.2 wt/%） to 53.5 wt% （± 1.3 wt%）. The major compositions of the pyrolysis oil are C9, C12 and C18, and β-scission reactions are predominant. The content of the light fraction C6-C12 of pyrolysis oil is 69.7 wt%. Compared with other pyrolysis reactors, the yield ofoil from vertical falling film pyrolysis reactor is slightly higher than that from tubular reactor, equal to that from rotary kiln reactor, and slightly lower than that in medium fluidised-bed reactor.展开更多
This study examined the effect of reducing disposable plastic checkout bags used in supermarkets, convenience stores, and so on in Japan. Considering that even when these checkout bags are abolished, alternative waste...This study examined the effect of reducing disposable plastic checkout bags used in supermarkets, convenience stores, and so on in Japan. Considering that even when these checkout bags are abolished, alternative waste bags should be newly produced, because these checkout bags have been reused as household waste bags so far, and the corresponding amount of oil is still necessary to produce them, the amount of oil saved by this bag reduction was found to be 0.2 L/person/year at most. Further, it was demonstrated that the necessity to purchase substitute bags may increase the household and financial burden on consumers.展开更多
Polymeric materials from renewable resources have attracted a lot of attention in recent years. The development and utilization of vegetable oils for polymeric materials are currently in the spotlight of the polymer a...Polymeric materials from renewable resources have attracted a lot of attention in recent years. The development and utilization of vegetable oils for polymeric materials are currently in the spotlight of the polymer and chemical industry, as they are the largest renewable platform due to their universal wide availability, ingrained biodegradability, low cost, and excellent environmental aspects (i.e., low ecotoxicity and low toxicity toward humans). These excellent natural characteristics are now being taken advantage of in research and development, with vegetable oil derived polymers/polymeric materials/composites being used in numerous applications including paints and coatings, adhesives, and nanocomposites. The aim of this review paper is to give a fundamental description of the various vegetable oil applications in polymer materials and its recent developments. Particular emphasis will be placed on study and main application of triglyceride based additive for polymer and to give the reader an insight into the main developments is discussed.展开更多
文摘Waste plastic oil,generated through the pyrolysis of plastic without oxygen,known as plastic-to-fuel conversion,stands as a promising alternative fuel.This research employs bibliometric analysis,a quantitative method,to comprehensively assess publications in the domain of waste plastic oil integration within reactivity-controlled compression ignition engines.Utilizing Scopus as the primary repository post-2017,the study categorizes information into pivotal aspects,including influential journals,countries,authors,affiliations,document types,thematic areas,sponsors and keywords.The analysis reveals significant contributions from diverse nations,prominently India,China,Turkey and Malaysia.Noteworthy is the prevalence of Energy,Engineering and Chemical Engineering as thematic focal points,with the journal Fuel leading the count followed by the journal Energy emerging as a prominent conduit.Institutional contributions are prolific,led by Gandhi Institute of Technology and Management University and Vellore Institute of Technology.Renowned authors‘Gugulothu S.K’and‘He Z’play a pivotal role in shaping the discourse.The National Natural Science Foundation of China stands out as a primary patron.This bibliometric analysis provides a structured understanding of waste plastic oil integration in reactivity-controlled compression ignition engines,laying the groundwork for future research avenues.The study identifies potential research platforms beyond Scopus,including Web of Science,CrossRef,Science Direct and Google Scholar,as valuable repositories for further exploration.Moreover,after careful observation of the research articles published by the top 10 authors as found in the study,it was found that the authors share a few common characteristics that helped them in advancing the understanding and application of waste plastic oil in reactivity-controlled compression ignition engines.These are also summarized in the present study with supporting data.
基金Funded by the National Natural Science Foundation of China(No.51175004)Educational Commission of Anhui Province of China(No.KJ2012A078)
文摘Super plasticizer was synthesized by using coal coking by product washing oil and industrial naphthalene. The results show that sulfonationt time （2.5 h）, sulfonation temperature （160 ℃） and condensation time （5.0 h） are key factors. Adding oxidizing agent MO in the course of synthesis can decrease the emission of SO2 in exhaust （20%）. Compared with NF, NF-30 have some advantages in lower cost, high water reducing rate （19.7%） and optimum early strengths. Moreover, TGA-DTA and SEM analysis were adopted to research the NF-30 modified concrete on hydyation mechanism. The analysis show that, compared with NF, there are a large number of hydration products such as Ca （OH）2, C-S-H, AFt etc of NF-30, the structure of NF-30 is dense and the performance is good.
基金Supported by the National Natural Science Foundation of China(51503154)Major Projects of China Water Pollution Control and Treatment Science and Technology(2017ZX07202005)the Shanghai Municipal Science and Technology Commission Fund for improving the economy in the Yangtze River Delta region(12195811100)
文摘Molten plastics are characterised with high viscosity and low thermal conductivity. Applying falling film pyrolysis reactor to deal with waste plastics can not only improve heat transfer efficiency, but also solve the flow problem. In this work, the pyrolysis process of molten polypropylene （PP） in a vertical falling film reactor is experimentally studied, and the influence of heating temperature on pyrolysis products is discussed. It has been found that with the temperature increases from 550 ℃ to 625 ℃, the yield of pyrolysis oil decreases from 74.4 wt% （ 4- 2.2 wt/%） to 53.5 wt% （± 1.3 wt%）. The major compositions of the pyrolysis oil are C9, C12 and C18, and β-scission reactions are predominant. The content of the light fraction C6-C12 of pyrolysis oil is 69.7 wt%. Compared with other pyrolysis reactors, the yield ofoil from vertical falling film pyrolysis reactor is slightly higher than that from tubular reactor, equal to that from rotary kiln reactor, and slightly lower than that in medium fluidised-bed reactor.
文摘This study examined the effect of reducing disposable plastic checkout bags used in supermarkets, convenience stores, and so on in Japan. Considering that even when these checkout bags are abolished, alternative waste bags should be newly produced, because these checkout bags have been reused as household waste bags so far, and the corresponding amount of oil is still necessary to produce them, the amount of oil saved by this bag reduction was found to be 0.2 L/person/year at most. Further, it was demonstrated that the necessity to purchase substitute bags may increase the household and financial burden on consumers.
文摘Polymeric materials from renewable resources have attracted a lot of attention in recent years. The development and utilization of vegetable oils for polymeric materials are currently in the spotlight of the polymer and chemical industry, as they are the largest renewable platform due to their universal wide availability, ingrained biodegradability, low cost, and excellent environmental aspects (i.e., low ecotoxicity and low toxicity toward humans). These excellent natural characteristics are now being taken advantage of in research and development, with vegetable oil derived polymers/polymeric materials/composites being used in numerous applications including paints and coatings, adhesives, and nanocomposites. The aim of this review paper is to give a fundamental description of the various vegetable oil applications in polymer materials and its recent developments. Particular emphasis will be placed on study and main application of triglyceride based additive for polymer and to give the reader an insight into the main developments is discussed.
