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发明公开
CN105541542A 一种工业萘为原料连续生产十氢萘的工艺方法 无效 - 撤回

一种工业萘为原料连续生产十氢萘的工艺方法
摘要：
本发明涉及一种以工业萘为原料连续生产十氢萘的方法，属于化工技术领域。该方法，将工业萘与溶剂混合后，在与氢气混合并加热至反应温度后进入一段加氢反应器加氢反应，加氢产物经过气液分离器分离后，气相产物经过洗气塔脱除杂质后得到氢气循环使用，液相产物一部分作为溶剂回流至原料混合罐；另一部分液相产物进入二段加氢反应器进一步加氢反应，反应产物经过气液分离器后，氢气循环使用，液相进入产品精馏塔，经过精馏脱除少量轻组分后得到高纯度十氢萘。本发明工艺方法具有原料适应性强，萘转化率高，副反应少，十氢萘纯度高的特点。
摘要（英）：

The invention relates to a method for continuously producing decahydronaphthalene from industrial naphthalene, belonging to the technical field of chemical industry. The method comprises the following steps: mixing industrial naphthalene and a solvent, mixing with hydrogen gas, heating to the reaction temperature, sending into a primary hydrogenation reactor to perform hydrogenation reaction, separating the hydrogenation products by a gas-liquid separator, removing impurities from the gas-phase product by a gas washing tower to obtain hydrogen gas for recycling, and refluxing part of the liquid-phase product into a raw material mixing tank as a solvent; and sending the rest liquid-phase product into a secondary hydrogenation reactor to perform hydrogenation reaction, passing the reaction products through the gas-liquid separator, recycling the hydrogen gas, sending the liquid phase into a product rectification tower, and rectifying to remove a small amount of light components, thereby obtaining the high-purity decahydronaphthalene. The technique provided by the invention has the characteristics of high adaptability, high naphthene conversion rate, fewer side reactions and high decahydronaphthalene purity.

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