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Frank_yen asked in 社會與文化語言 · 1 decade ago

請幫忙翻譯這3段中文

1.提高二氧化碳流量,使二氧化碳降低了與原料的接觸時間,單位體積的二氧化碳萃取量降低,使得油脂產率下降;另外,隨著二氧化碳流量增加,萃取時間會縮短,卻增加了二氧化碳的使用量,增加設備使用經費。

2.如果原料粒徑太細,則在高壓下易形成密實的濾餅,因此增加了質傳阻力,所以不利於萃取過細的粉末也容易造成設備管路的阻塞,易導致系統壓力不穩定,所以太細的粉末對於萃取是不利的。

3.原料的堆積密度增大,CO2的擴散阻力增大,氣流分布也不均勻,易形成”溝流現象”,從而使萃取產率下降;另外,在二氧化碳流速一定的情況下,原料裝填量加大也意味著每單位原料上的流量減少,從而導致萃取率下降。但如果原料裝填量過少,則不能充分發揮設備的萃取能力,使設備的利用率降低。

3 Answers

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  • 1 decade ago
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    1. enhances the carbon dioxide current capacity, caused the carbon dioxide to reduce with raw material contact duration, the unit volume carbon dioxide extract quantity reduced, causes the fat production rate to drop; Moreover, increases along with the carbon dioxide current capacity, the extract time will reduce, actually increased the carbon dioxide amount of use, will increase the equipment use funds.

    2. if raw material particle size is too thin, easy to form under the high pressure densely filters the cake, therefore increased the nature to pass on the resistance, therefore did not favor the extract meticulous powder also easy to create equipment pipeline's blocking, easy to cause the system pressure not to be unstable, the ether thin powder regarding the extract was disadvantageous.

    3. raw material stack density increases, the CO2 diffusional resistance increases, the air current distribution is also non-uniform, easy to form” the channeling phenomenon”, thus causes the extract production rate to drop; Moreover, in carbon dioxide speed of flow certain situation, raw material filling quantity enlarges also means on each unit raw material the current capacity reduction, thus causes the extraction yield to drop. But if raw material filling quantity too few, then cannot display equipment's extraction power fully, causes equipment's use factor to reduce.

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  • 1 decade ago

    1.Improve the flow of carbon dioxide so that carbon dioxide reduces the contact time with the raw materials, extraction of carbon dioxide per unit volume decreased, the rate of decline in oil production; In addition, with the increased flow of carbon dioxide, extraction time will be shortened, but increased use of carbon dioxide to increase the equipment funding.

    2.If the raw material particle size is too small, then under high pressure to form dense cake easily, thereby increasing mass transfer resistance, it is not conducive to meticulous extraction of powder equipment also easily lead to the obstruction of pipes, easily lead to instability in the system pressure, so too fine powder for extraction is detrimental.

    3.Increase the packing density of materials, CO2 increased the spread of resistance, air distribution is not uniform and easy to form a "channel flow", so that the yield decreased extraction; In addition, carbon dioxide flow in certain circumstances, increase the volume of material filling It also means that the per unit reduction in the flow of raw materials, resulting in extraction rate.However, if the volume of material loaded is too small, it can not give full play to the capacity of extraction equipment to reduce the utilization of equipment.

    Source(s): 不知道對不對
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  • 1 decade ago

    您好 以下是我為您找到得答案

    1. To improve the flow of carbon dioxide so that carbon dioxide reduces the contact time with the raw materials, extraction of carbon dioxide per unit volume decreased, the rate of decline in oil production; In addition, with the increased flow of carbon dioxide, extraction time will be shortened, but increased use of carbon dioxide to increase funding for equipment.

    2. If the raw material particle size is too small, then under high pressure to form dense cake easily, thereby increasing mass transfer resistance, it is not conducive to meticulous extraction of powder equipment also easily lead to the obstruction of pipes, easily lead to instability in the system pressure, Therefore, too small for the extraction of the powder was negative.

    3. The accumulation of material density, CO2 increased the spread of resistance, air distribution is not uniform and easy to form a "channel flow", so that the yield decreased extraction; In addition, carbon dioxide flow in certain cases, the raw material loading also means increasing the volume of raw materials per unit reduction in the flow, resulting in extraction rate. However, if the volume of material loaded is too small, it can not give full play to the capacity of extraction equipment to reduce the utilization of equipment.

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