文档介绍：广东石油化工学院
毕业论文
论文题目: 低温煤焦油工艺流程用途节能及发展前景
学生姓名:杨金芳
学生学号:
专业班级:
学院名称:广东石油化工学院
指导老师:___________________
学校院长:___________________
目录
摘要 1
Abstract 2
前言 3
1. 低温煤焦油的化学组成和性质 3
3
4
5
2. 影响低温煤焦油产率和性质的主要因素 6
3. 低温煤焦油加工前的预处理 6
6
7
7
7
4. 低温煤焦油的连续蒸馏(工艺流程) 7
7
8
5. 低温煤焦油产品 8
8
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11
参考文献 13
致谢 14
摘要
煤焦油是煤炭干馏时生成的具有刺激性臭味的黑色或黑褐色粘稠状液体,简称焦油。常温下煤焦油是一种黑色粘稠液体,炼焦生产的高温煤焦油密度较高,~³ 。低温煤焦油也是黑色粘稠液体,,芳烃含量少,烷烃含量大,其组成与原料煤质有关。
煤焦油是炼焦化工的大宗产品,煤焦油的加工利用开创了近代有机化学工业的历史。在石油化工高速发展的今天,煤焦油化工仍然占有重要地位,在提供多环芳烃和高碳物料原料方面具有不可取代的作用。煤焦油是一种碳氢化合物的复杂混合物,大部分为价值较高的稀有种类,是石油化工难以获得的宝贵资源。煤焦油作为一种基础资源,各国均把本国煤焦油作为重要资源加以保护。
关键词:低温煤焦油工艺流程产品用途节能降耗发展前景
Abstract
Dry distillation of coal tar has a pungent odor that is generated when the black or dark brown viscous liquid, referred to as tar. Room temperature coal tar is a black viscous liquid, density of coking coal tar produced by high temperature was higher, ~ ³. Low-temperature coal tar is a black viscous liquid, which is different from the relative density of high temperature coal tar is typically less than , less aromatic content, paraffin content of large, coal and raw materials related to position.
Coal tar is the bulk chemical products, coke, coal tar processing industry bycreating the history of anic chemistry. In today's fast-growing petrochemical industry, coal tar chemical industry still plays an important role in the provision of raw materials, polycyclic aromatic hydrocarbons and carbon materials, has an irreplaceable role. Coal tar is plex mixture of hydrocarbons, most of the rare high-value species, is difficult to obtain valuable petrochemical resources. As a basic resource of coal tar, coal tar as a country are an important resource to their protection.
Key: Low-temperature coal tar;process;usage; Energy saving;Prospects;