Oxidative Extractive Desulfurization System for Fuel Oil Using Acidic Eutectic-Based Ionic Liquid
, Khairulazhar Jumbri 1,4, Jun Wei Lim 1,5, Mardawani Mohamad 6, Pau Loke Show 7 and Brian Yuliarto 8,9Round 1
Reviewer 1 Report
This manuscript focuses on the optimization of eutectic ionic liquid system to remove sulfur form oil refinery process. The authors probed a thorough series of parameter that affects the efficiency of the desulfurization. It represented a good concept and showed encouraging results; however, the synthesis of the ionic liquids as well as efficiency study lacks firm evidence to support their claims. With major revision, such as additional experiments and better data quality control (such as error bars), this manuscript may be acceptable to publish in Processes.
- This manuscript needs a thorough spelling and grammar check. For example, in the abstract “high performance light chromatography (HPLC)” should be liquid chromatography.
- The authors must have a more detailed discussion on the TGA as there are other interference factors. For example, both PA and TSA have a boiling point at around 140 °C, which interfere with the thermal stability study at 250 ° Besides, since the on-set decomposition temperature is lower that 40°C for all EILs, their synthesis at 80 and 100 °C raises concern about their stability during the synthesis. The authors must have another characterization method to support the successful synthesis of the claimed EILs.
- Temperatures and weight percent in TGA can never be this accurate as in Table 1, please reduce the significant number.
- Figure 3 to 9 need error bars.
- The authors need to shorten the abstract and move some introduction part to the main manuscript.
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Author Response
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Author Response File: Author Response.pdf
Reviewer 2 Report
This is an interesting work which will attract a lot of audient in the fuel area. The article is good in quality. I suggest publication. But there are a few minor concerns from me, which are listed below.
- why did the TGA result not show a proper X axis lables?
- for the case of ChCl1:PA2 and ChCl1:TSA1, what do they mean if their mass become negative?
- Do the authors repeat the experiment several times for each case? if so, I suggest adding the error bar in the results.
- Due to mass balance, if the S is revmoved from the fuel, where dose the S go? Please clearly state this.
Author Response
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Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
All of my major concerns have been answered. This manuscript is suitable for publication now.
