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 化工翻译摘要
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 求化学论文摘要关键词翻译成英文
可以找清北医学翻译，化学论文一般的机构和软件都翻译不了，涉及的领域问题，还有一些语法问题。所以还是找这一类型比较大的机构吧。
❹ 化工论文前面的摘要写成英文，，求助翻译一下谢谢！
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 关于化学的英语摘要
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 麻烦高手帮我把化工论文摘要翻译成英文,谢谢!
关键词太多！而且有的根本不是“关键词”，最关键的“涂料”一词却不曾提到！你的关键词的确定是根据论文摘要的引用频次的提高而指定，象你这样的关键词与摘要有什么关联？我给了另一种修改。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
建议将关键词修改如下：
Keywords: Coating, Decorational protection, Anti-corrosion protection
❼ 化工系毕业论文摘要翻译成英文，高手帮忙，速度啊
我想请教你一个问题，我们实验中间苯二酚与乙酰乙酸乙酯不能一比一互溶，你们是一比一互溶么？有什么技巧？谢谢
❽ 急！！！化学论文英语摘要（翻译）
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 论文摘要翻译，化工的
ls可以去lingoes~！
❿ 急求化工类英文论文摘要翻译，谢谢了！
固体氧化铁脱硫剂长期以来因硫容量低,用于高含硫气体时,存在着在高空速下气体净化度不高的问题,限制了氧化铁脱硫剂的应用。因此本文综合目前应用最为广泛氧化铁脱硫剂的优缺点，分别探讨不同反应物制得的Fe2O3脱硫剂的脱硫性能及不同载体在不同温度下的脱硫效果，且在这些条件下再改变沉淀剂的种类来深入探讨出一种高效的、成本较低的脱硫剂。
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，通过选择不同的反应原料来制取脱硫剂，即分别使用实验室的Fe2O3原料、FeCl3和Fe2(SO4)3来制备脱硫剂。结果发现经过酸化后的Fe2O3原料所制取的脱硫剂脱硫性能较好。其主要原因是其他两种原料在反应后抽虑过程中有Cl-、SO42-未完全洗涤掉，进而对脱硫剂脱硫效果产生了影响。
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，选择Fe2(SO4)3为原料制取脱硫剂，当温度一定，改变载体的种类，发现相同温度下Al2O3为载体的效果最佳，载体C效果最差，其一方面的原因是载体C焙烧后脱硫剂的强度很差，基本成粉末状。而Al2O3的最好。与此同时，当固定一种载体时，通过改变焙烧温度来考察脱硫剂性能。结果表明，脱硫剂的最佳焙烧温度为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，当选用沉淀剂NH4OH、NH4HCO3、Na2CO3，发现沉淀剂的效果是NH4OH＞NH4HCO3＞Na2CO3。另外，当固定载体种类时，改变载体CaO的含量（10％、20％、30％），发现载体的含量越低时脱硫效果越好。将上述所有脱硫剂经过900℃焙烧2小时进行老化，再次进行脱硫反应，结果发现，老化后的脱硫效果远远比未被老化的脱硫剂效果差。
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.
最后，通过改变H2S空速、是否含有水蒸气来讨论对脱硫效果的影响，研究表明，随着空速的增大，脱硫剂的脱硫性能降低，而H2S中不含有水蒸气能产生较好的脱硫效果。
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.