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单词 Hydrogenated oil
释义

Hydrogenated oil

原声例句
CNN 听力 2013年11月合集

Next up today, partially hydrogenated oils.

今天接下来的节目是关于部分氢化油。

CNN 10 学生英语 2019年5月合集

Ultraprocessed, refers to food that have emulsifiers, high fructose corn syrup, flavoring agents and hydrogenated oils.

指的是含有乳化剂、高果糖浆、调味剂和氢化脂肪。

韩刚B2A“译点通”:听力笔记快速上手宝典

“There are products that indeed can be formulated without the use of partially hydrogenated oils.”

“确实有的产品在加工过程中没有使用部分氢化的油。”

VOA Special 2013年12月合集

" There are products that indeed can be formulated without the use of partially hydrogenated oils, " he said.

“确实有的产品在加工过程中没有使用部分氢化油。”

VOA Special 2013年12月合集

Americans will have 60 days to comment on an FDA proposal for ending the use of partly hydrogenated oils before the rule is final.

FDA提议结束对部分氢化油的使用,美国人将有60天的时间来进行评论,然后最终确定有关规定。

化学 Crash Course

Trans fats are created by partially hydrogenating vegetable oil on a cheap path to tasty fat, without all the saturated fat on the dietary label.

反式脂肪是通过部分氢化植物油以一种廉价的方式制成美味脂肪而产生的,不含膳食标签上的所有饱和脂肪。

中文百科

氢化 Hydrogenation

(重定向自Hydrogenated oil)

氢化是一种化工单元过程,是有机物和氢起反应的过程,由于氢不活跃,通常必须有催化剂的存在才能反应。但无机物和氢之间的反应,如氮和氢反应生成氨,一氧化碳和氢反应生成甲醇在化工过程中不叫氢化,而叫“合成”。

氢化在化工生产中一般分为两种:

英语百科

Hydrogenation 氢化

(重定向自Hydrogenated oil)

Steps in the hydrogenation of a C=C double bond at a catalyst surface, for example Ni or Pt :
(1) The reactants are adsorbed on the catalyst surface and H2 dissociates.
(2) An H atom bonds to one C atom. The other C atom is still attached to the surface.
(3) A second C atom bonds to an H atom. The molecule leaves the surface.
Partial hydrogenation of a typical plant oil to a typical component of margarine. Most of the C=C double bonds are removed in this process, which elevates the melting point of the product.

Hydrogenation – to treat with hydrogen – is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, generally an alkene. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures. Hydrogenation reduces double and triple bonds in hydrocarbons.

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更新时间:2025/6/19 19:05:58