利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN105505997A 一种纤维素乙醇的生产方法 无效 - 驳回

一种纤维素乙醇的生产方法
摘要：
本发明公开了一种纤维素乙醇的生产方法，其中，该方法包括以下步骤：1)将纤维素原料进行预处理，得到含水物料；2)用氨水将步骤1)得到的含水物料调节pH值至4-6，然后进行酶水解处理，得到醪液；3)用碱剂将步骤2)得到的醪液调节pH值至4-6，然后进行发酵处理，得到含乙醇的物料，并从该含乙醇的物料中分离出乙醇，其中，所述碱剂为氢氧化钠、氢氧化钾、碳酸钠、氧化钙和氢氧化钙中的至少一种。本发明提供的纤维素乙醇的生产方法在保证纤维素乙醇的产量的同时，能够显著降低生产成本和环境污染。
摘要（英）：

The invention discloses a production method of ligno-cellulosic bio-ethanol. Specifically, the method includes the steps of: 1) pretreating cellulose raw material to obtain a water-containing material; 2) using ammonia water to adjust the pH value of the water-containing material obtained in step 1) to 4-6, and then conducting enzyme hydrolysis treatment to obtain mash; and 3) using an alkaline agent to adjust the pH value of the mash to 4-6, then conducting fermentation treatment to obtain an ethanol-containing material, and separating ethanol from the ethanol-containing material, with the alkaline agent being at least one of sodium hydroxide, potassium hydroxide, sodium carbonate, calcium oxide and calcium hydroxide. The production method of ligno-cellulosic bio-ethanol provided by the invention guarantees the production of ligno-cellulosic bio-ethanol, at the same time significantly reduces the production cost and environmental pollution.

0/0