化工摘要英文
Supercritical CO2 Extraction Technology and Its Application in Natural Proct Separation
Brief Description of the supercritical CO2 extraction technology, the basic principles, characteristics and factors, mainly explained by supercritical CO2 extraction technology in the application of natural proct areas: food instry, Chinese traditional medicine, perfume cosmetics. Also introced supercritical CO2 extraction technology and other technologies combined with, and prospects of the technology development trends and potential problems.
❷ 化工翻譯摘要
The device covers an design area of 15,551 square meters with processing ability of 550Mt/a and annual on-stream time of 8400 hours. The crude oil is used as material. The device is mainly composed parts of electric desalting, initialboiling, airdistillation,vaccum distillation and oil heat-exchanging networks. Main procts of the device include light naphtha, heavy naphtha,diesel and hydrocracking material, with coking material of vacuum resium.
The heat tranfering process was optimized as the fuel cosumption of the heating furnace accounts for about 78 percent of the total device comsumption.So it is of utmost importance of the energy-saving consumption. The device design introces the vertical cylindrical heater. By fixing the general load of the heater and the nature of the fuel oil, conct detailed procere calculation to the heater. It specially calculates the parameters of the radioation room, the convection cell and the chimney of the heather. Additionally the heater emplys four-pipe type with dimension of Φ219×14mm. And the radioation room with total area of 724 square meters and designed heat load of 14480000Kcal/h, uses 72 pieces of standard stud tubes to expand the heat transfer area. The dimension of the convection cell is 4m×3.723m×5.7m with 112 pieces of light pipes, total heat exchange area of 288.28 square meteres and general heat load of 3100000/Kcal/h. The chimney diameter is 2.25 meters with minimum height of 12.77m and thermal efficiency of 72%.
Key words: petroleum refining instry, atmospheric and vaccum distillation unit, heater of vaccum tower
❸ 求化學論文摘要關鍵詞翻譯成英文
可以找清北醫學翻譯，化學論文一般的機構和軟體都翻譯不了，涉及的領域問題，還有一些語法問題。所以還是找這一類型比較大的機構吧。
❹ 化工論文前面的摘要寫成英文，，求助翻譯一下謝謝！
Graphene, a single layer of carbon atoms lamellar structure of the new material, is currently the world's most thin is also one of the hardest nanomaterials, low resistivity, fast electron transfer, so was looking forward to can be used to develop a thinner. Conctive faster a new generation of electronic components or transistor. Because of graphene is in essence a kind of transparent, the good conctor, also suitable for manufacturing transparent touch screen, plate, or even the solar cell. Therefore graphene peculiar physical and chemical properties has aroused scientists in physics, chemistry, materials and other fields, a great deal of interest.
❺ 關於化學的英語摘要
Based on the microwave method with using sucroses as raw materials and concentrated hydrochloric acid as catalyst and acidifier,a proct of levulinic acid and formic acid by-procts are generated by the intermediate proct 5 - hydroxymethyl-furfural and decarboxylation. The experimental results have shown under the condition that the concentration of hydrochloric acid being 4mol/L, the concentration of sucrose being 50g/L and 70% of the microwave power being used with a five-minute reaction time, the most maximum acid proction can be reached at the rate of 52.4%. It is obviously improved compared with the rate 22.4% on the literature value.
❻ 麻煩高手幫我把化工論文摘要翻譯成英文,謝謝!
關鍵詞太多！而且有的根本不是「關鍵詞」，最關鍵的「塗料」一詞卻不曾提到！你的關鍵詞的確定是根據論文摘要的引用頻次的提高而指定，象你這樣的關鍵詞與摘要有什麼關聯？我給了另一種修改。你可以看看。
Abstract：coating, a necessary mathcing material in all the units of national economy, is widely used in the decorational
protection of various buildings and instrial procts such as planes, rockets, man-made satellites, cars, ships, mechanics, electronics, light instrial procts, and household electric appliances, etc., moreover, it is also used in the anti-corrosion protection of various ferrous facilities such as docks, ocean drilling platform, petrochemical equipments, transmission pipelines, power transmission ＆ transformation tower, and bridges, etc. Along with the development of national economy and the improvement of people's living standard, the application of coating becomes wider and wider. The consumption level of coating becomes one of the important symbols reflecting the developmental state of national economy of a country.
Keywords: Proction & consumption actuality; Technical progress; Developmental trend; Proction, trade, and consumption; Problems exist, Strenghen research and development; Environmental protection; Strenghen professional proction; Perfect statistics; Re-editing quality standard; Enlarge foreign cooperation
建議將關鍵詞修改如下：
Keywords: Coating, Decorational protection, Anti-corrosion protection
❼ 化工系畢業論文摘要翻譯成英文，高手幫忙，速度啊
我想請教你一個問題，我們實驗中間苯二酚與乙醯乙酸乙酯不能一比一互溶，你們是一比一互溶么？有什麼技巧？謝謝
❽ 急！！！化學論文英語摘要（翻譯）
Chemical science ecation as an important component of the new curriculum from the student advocacy and social development needs, disciplines play to their advantages, and Scientific Research will be applied to teaching, require students to know how to use chemical knowledge and methods to explain in the daily lives of related issues, such as pollution control, and rational development and use of chemical resources. Such students have enhanced the natural and social responsibility; inspired the students to learn initiative and sense of innovation and the promotion of students to learn more proactive so that the chemical knowledge and skills to understand the process has become chemical, Scientific Inquiry, the associated social life and the actual process of the formation of scientific values.
❾ 論文摘要翻譯，化工的
ls可以去lingoes~！
❿ 急求化工類英文論文摘要翻譯，謝謝了！
固體氧化鐵脫硫劑長期以來因硫容量低,用於高含硫氣體時,存在著在高空速下氣體凈化度不高的問題,限制了氧化鐵脫硫劑的應用。因此本文綜合目前應用最為廣泛氧化鐵脫硫劑的優缺點，分別探討不同反應物製得的Fe2O3脫硫劑的脫硫性能及不同載體在不同溫度下的脫硫效果，且在這些條件下再改變沉澱劑的種類來深入探討出一種高效的、成本較低的脫硫劑。
Solid oxide sulfur sorbent capacity e to low long-term, for high-sulfur gas, the existence of the gas at high speed is not high degree of purification of the problem, limiting the application of iron oxide sorbent. Therefore this paper, the current most widely used iron oxide desulfurizer the advantages and disadvantages of different reactants were obtained desulfurizer Fe2O3 and the desulfurization performance of different carriers at different temperatures desulfurization effect, and under these conditions in the precipitation agent to change the type of depth to a highly efficient, lower-cost sorbent.
首先，通過選擇不同的反應原料來製取脫硫劑，即分別使用實驗室的Fe2O3原料、FeCl3和Fe2(SO4)3來制備脫硫劑。結果發現經過酸化後的Fe2O3原料所製取的脫硫劑脫硫性能較好。其主要原因是其他兩種原料在反應後抽慮過程中有Cl-、SO42-未完全洗滌掉，進而對脫硫劑脫硫效果產生了影響。
First of all, by selecting the different reactions to the preparation of raw materials desulfurizer, that the use of raw materials Fe2O3 Laboratory, FeCl3 and Fe2 (SO4) 3 to prepare desulfurizer. The results showed that after acidification of the raw material after the preparation of Fe2O3 Desulfurization of better performance. The main reason is the other two after the extraction of raw materials in the reaction process to consider Cl-, SO42-has not been completely washed out, and thus the effect Desulfurization impact.
其次，選擇Fe2(SO4)3為原料製取脫硫劑，當溫度一定，改變載體的種類，發現相同溫度下Al2O3為載體的效果最佳，載體C效果最差，其一方面的原因是載體C焙燒後脫硫劑的強度很差，基本成粉末狀。而Al2O3的最好。與此同時，當固定一種載體時，通過改變焙燒溫度來考察脫硫劑性能。結果表明，脫硫劑的最佳焙燒溫度為450℃。
Secondly, the choice of Fe2 (SO4) 3 as raw materials desulfurizer preparation, when the temperature must change the type of carrier and found the same temperature as the carrier under the effect of Al2O3 best, the worst effects of carrier C, which was e to carriers on the one hand, C After calcination the intensity of desulfurizer poor basic into powder. The best and Al2O3. At the same time, when a carrier of fixed by changing the calcination temperature to study the performance desulfurizer. The results showed that the best sorbent calcination temperature to 450 ℃.
再次，當選用沉澱劑NH4OH、NH4HCO3、Na2CO3，發現沉澱劑的效果是NH4OH＞NH4HCO3＞Na2CO3。另外，當固定載體種類時，改變載體CaO的含量（10％、20％、30％），發現載體的含量越低時脫硫效果越好。將上述所有脫硫劑經過900℃焙燒2小時進行老化，再次進行脫硫反應，結果發現，老化後的脫硫效果遠遠比未被老化的脫硫劑效果差。
Re-elected with precipitant NH4OH, NH4HCO3, Na2CO3, found that the effect of precipitant NH4OH> NH4HCO3> Na2CO3. In addition, the type of when a fixed vector, the change in CaO content vector (10%, 20%, 30%) and found that the lower carrier concentration, the better when the desulfurization effect. Desulfurizer above all after two hours baking 900 ℃ for aging of desulfurization again found that the effect of aging is much lower than those of the desulfurization aging desulfurizer not bad.
最後，通過改變H2S空速、是否含有水蒸氣來討論對脫硫效果的影響，研究表明，隨著空速的增大，脫硫劑的脫硫性能降低，而H2S中不含有水蒸氣能產生較好的脫硫效果。
Finally, by changing the space velocity H2S, to discuss whether it contains water vapor effect on the desulfurization, research showed that with increasing airspeed, the desulfurization sorbent performance, and H2S does not contain water vapor to proce better desulfurization.