分析化学分野の英文校正サンプル

エナゴは、分析化学分野でも多くの論文を校正し、高い評価をいただいてきました。分析化学に限らず、無機化学、有機化学、物理化学などの関連分野の修士号や博士号を持つ校正者が、専門的な見識を踏まえた校閲・校正を行います。こちらが分析化学論文の修正履歴付き校正サンプルです。アドバンス英文校正とノーマル英文校正の2つのサービスプランを比較いただき、各種サンプルをPDF形式でダウンロードすることもできます。

Figure 2 showsA scanning electron microscopy image of the Pt/mordenite zeolite catalyst is shown in Figure 2, which the SEM micrography. The image indicates that the catalyst morphology has a is homogeneous morphology. High surface area improves the reactant adsorption, thus The surface area is playing a key role in the catalystic activity. Higher surface area improves the reactant adsorption. The catalysts surface area of the Pt/mordenite zeolite catalyst was measured by Brunauer–Emmett–Teller BETsurface analysis. The surface area of Pt/mordneite zeolites were was  1 296.69 m2/gm 2 . The X-ray powder diffractionXRDs pattern of Pt/mordenite zeolite (Figure 3) exhibits the most intense diffraction peaks at 2θ = 6° - 30°o,, and it thus confirmed confirming the MOR structure of zeolite as the MOR as well as its good crystalline nature being good.

The hydroisomerizetion of pPure n-pentane and n-pentane in a binary mixture of pentane isomers wereas hydroisomerized performed by using the Pt/mordenite catalyst for under a wide ranges of experimental conditionss. The hydrological -conversion products comprise 3yielded of both isomerization and creaking cracking products. Hence In the following subsections, tell the effects of reaction parameters effects with on the catalytic performance of pure n-pentane as the feed are demonstrated by based on catalytic activity and isomerization selectivity. after thisThen, the isomerization of n-pentane in the binary mixture is discussed in the last part of this section.

Figure 4 shows the conversion of n-pentane 4 as a function of reaction temperature. The tests reactions were performed in an side H2 environment at temperatures ranging from 150 °C - to 350 °C 5 atnd atmosphere pressures. It clearly shows that tThe catalyst is seen to strongly catalyze the showed a high catalysing activity for the isomerization of n-pentene, particularly in the temperature range ofing in 220 °C-350 ° C. Because of the low activity of the catalyst and the low reactivity of n-pentane, the conversion of n-pentane is negligible from at temperatures below 180 °C. By increasing the temperature at from 180 °C to 220 °C, the conversion of n-pentane rose greatlyincreased significantly; however, a further increasing thee in temperature further results in a slowly rises conversion. This can be caused byattributed to an increasing increase in the number of sites which that can be activated for the reaction when the temperatures increases to be in the range from of 180 °C - 220 °C; buthowever, the conversion rate of conversion increase begins to declining decrease as the temperature increases because of thermodynamic restrictions at bigger high temperature. In other words, an increasing the temperature always results in means a faster increaseing reaction rate. Thus aAt low temperatures, the low reaction rates cause the actual conversion will to be far below the equilibrium conversion because low reaction rate. On the contraryIn contrast, at higher temperatures the equilibrium conversion will be more easyis easily achieved because ofdue to 6 a the high reaction rate.

Explanations

Figure 2 showsAn SEM image of the Pt/mordenite zeolite catalyst the SEM micrography. The image is shown in Figure 2 and indicates that the catalyst has a homogeneous morphology. The surface area isplays a key role in the catalystcatalytic activity. HigherHigh surface area improves the reactant adsorption. of reactants. The catalysts surface area of the catalyst was measured by BET .surface analysis. The surface area of Pt/mordneitemordenite zeolites were was  1 296.69 m2/gmg. The XRDsXRD pattern of Pt/mordenite zeolite (Figure 3) exhibits the most intense diffraction peaks at 2θ = 6 - 30o, and it thus confirmed ° 2 30°; the MOR structure of zeolite as the MOR as well asand its good crystalline nature being good. are thus confirmed.

The hydroisomerizetionhydroisomerization of pure n-pentane and n-pentane in a binary mixture of pentane isomers was performed by the Pt/mordenite catalyst forunder a wide rangesrange of experimental conditions. The hydrological hydro-conversion products comprise 3 of both isomerization and creakingcracking products. Hence theThe following subsections tell cover how the reaction parameters effects withaffect the catalytic performance of pure n-pentane as the feed are, which is demonstrated by catalytic activity and isomerization selectivity. after thisThen, the isomerization of npentanen-pentane in the bibinary mixture is discussed.

Figure 4 shows the conversion of npentanen-pentane 4 as a function of reaction temperature. The testsreactions were performed insidein an H2 environment at temperatures ranging from 150 -°C to 350 °C andat atmosphere pressures. It clearly shows that thepressure. The catalyst showed a high catalysing activity foris seen to strongly catalyze the isomerization of npentenen-pentene, particularly in the temperature ranging inrange of 220- °C –350 ° C. Because of the low activity of the catalyst and the low reactivity of n-pentane, the conversion of n-pentane is negligible fromat temperatures below 180 °C. By increasing the temperature atfrom 180 °C to 220 °C, the conversion of n-pentane roseincreased greatly; however, a further increase in increasing the temperature slowly risesfurther results in a slow conversion. This canmay be caused by an increasingincrease in the number of sites whichthat can be activated for the reaction when the temperatures increases increase to be in the range fromof 180 - °C–220 °C; but, the rate of conversion increase declining rate begins to decline for increasing temperature because of thermodynamic restrictionrestrictions at biggerhigh temperature. In other words, an increasing the temperature always means increaseing results in a higher reaction rate. Thus atAt low temperaturestemperature, the actual conversion will be far below the equilibrium conversion because of low reaction rate. On the contraryIn contrast, at higher temperaturestemperature, the equilibrium conversion will be more easyeasier due to athe high reaction rate.

Explanations

◂ サンプル一覧に戻る

アフターサービスをご利用したお客様の声

ジャーナルに受理・掲載された論文

Enago has helped hundreds of authors to get papers published. Below is a list of authors who have published their papers and who thank Enago in their paper for providing high-quality editing services.