邻苯二甲酸酐（简称苯酐）是重要的基本有机化工原料，主要用于制造增 塑剂、聚酯树脂和醇酸树脂，还可用于生产涂料、医药、农药、糖精等。 随着苯酐市场需求量逐年扩大，为缓解供需矛盾，有效利用我国丰富煤炭 资源，本项目设计采用煤化工副产工业萘为原料生产苯酐。河南启瑞生物科技 发展有限公司利用周边原料供应和公用工程优势，降低产品成本；选用先进的 气固氧化反应工艺，利用苯酐生产过程大量的反应热和冷凝热回收副产高品位 蒸汽，除苯酐装置自用外还有富裕蒸汽（5.8 万吨/年）输出供其他装置使用，达 到节能减排、提高产品附加值目的；利用公司成熟的下游产品増塑剂销售条件， 扩大产业链，取得较强目标市场竞争力。 本可行性研究根据相关产业规范，结合国内外苯酐市场发展趋势及河南启 瑞生物科技发展有限公司自身优势，提出以工业萘为原料年产 3 万吨苯酐项目， 并对该项目建设规模，工艺技术方案选择，项目建设条件及生产场地选址，原 材料供应及公用工程，节能与环保等问题进行了详细的可行性分析，并对该项 目进行了财务评价和风险分析。经分析研究认为，本项目实施条件好，技术先 进成熟，安全可靠，环境友好；生产能耗低，节能效果显著，达到国家对基础 产业规模化、现代化、节能型的要求，符合国家产业政策，行业规划；产品质 量高，装置投资低，社会效益和经济效益显著，具有市场竞争力和抗风险能力， 建设本项目是完全可行的。 关键词，苯酐 工业萘 可行性 评价II Abstract As an important basic organic raw materials, phthalic anhydride can be used in fabrication of plasticizer, polyester resin and alkyd resin, which can also be used in production of paint, medicine, pesticide, saccharin and so on. With the market demand enlarging year by year, in order to relieve the supplying demanding contradiction and making effectively use of abundant coal resources in our country, coal chemical by-product industrial naphthalene was regarded as raw materials to produce phthalic anhydride in this designed project. business chains will be expanded combined with the advantages of the raw material supply and public project around Henan qi rui biological technology development co., LTD to reduce the product cost. Gas-solid oxidation technology was successfully selected to use large amounts of the heating of reaction of benzene anhydride production process and high quality steam produced by such a condensing heat recovery. In addition to the benzene anhydride device for the private and rich steam output (5.8×103 tons/year) for the use of other devices, it is beneficial to achieve energy conservation and emissions reduction and enhance the added value of the product. Using the low product cost and mature sales condition of the downstream products plasticizer, it can be proved by strong target market competitiveness. In accordance with the relevant industry specifications, the annual output of 30000 tons of benzene anhydride project with crude naphthalene as raw material was proposed in this feasibility research combined with the market development trend of phthalic anhydride at home and abroad and self-advantages of Henan qi rui biological technology development co., LTD. What’s more, a detailed feasibility analysis of construction scale, optimal technology scheme, construction conditions, production site location, raw material supply and public project, energy saving and environmental protection was made. Through the analysis and research thought, we can find that: this project has good implementation condition, advanced and mature technology, low energy consumption, remarkable energy-saving effect, meeting the national demand for basic industry scale, modernization and energy-saving, andIII conforming to the national industrial policy, industry planning, high product quality, low equipment investment, good social benefit and economic benefit, strong market competitiveness and ability to resist risks, as well as safe and reliable, in a word, it’s feasible to construct this project. Key words: phthalic anhydride, crude naphthalene, feasibility, evaluation目 录 摘要..I Abstract ...II 目 录......II 1 总论 .....5 1.1 项目背景、建设必要性 5 1.1.1 项目背景 ....5 1.1.2 建设必要性 5 1.2 主要研究内容 .......7 1.3 研究步骤 ......7 1.4 主要技术经济指标 ........7 2. 文献综述 ...10 2.1 苯酐的性质和用途 ......10 2.2 市场预测 ....10 2.2.1 国外苯酐市场预测 ....10 2.2.2 国内苯酐市场现状 ....11 2.2.3 国内苯酐市场需求预测 .....14 2.2.4 产品目标市场分析 ....15 2.2.5 价格预测 ..16 2.3 苯酐生产工艺概述及选择 ...16 2.3.1 原料路线确定的原则和依据 ......16 2.3.2 国内、外技术概况比较 .....18 2.3.3 工艺技术方案确定、优势分析 ..19 3 工艺流程方案 .......21 3.1 工艺流程简述 .....21 3.2 工艺流程图 21 3.3 消耗定额 ....23 3.3.1 工艺消耗定额 ...233.4 工艺设备 ....24 3.4.1 设备特点 ..24 3.4.2 主要设备选择 [31] ........24 3.4.3 主要设备 ..25 3.5 自控技术方案 .....27 3.5.1 自控水平和主要控制方案 .27 3.5.2 主要控制方案说明 ....28 3.5.3 环境特征及仪表选型 28 3.5.4 可燃气体分析仪 ........29 4 主要原材料和公用工程 30 4.1 原材料及辅助材料供应 .......30 4.1.1 主要原材料、辅助材料规格 ......30 4.1.2 主要原材料、辅助材料消耗和供应 ...31 4.1.3 公用工程消耗和供应 31 4.1.4 贮运设施 ..32 4.2 公用工程及辅助设施方案 ...33 4.2.1 供电 .33 4.2.2 供热蒸汽 ..35 4.2.3 给排水 ......36 4.2.4 电信 .37 4.2.5 工艺及供热外管 ........38 4.2.6 通风与空调 .......38 4.2.7 维修（机修、电修、仪修） ......39 4.2.8 分析化验 ..39 5 节能与环保措施 ...41 5.1 节能分析 ....41 5.1.1 能耗分析 [33] .......41 5.1.2 单位产品能耗计算和比较 .43 5.1.3 主要节能措施 ...44 5.2 环境保护与综合利用 ..46 5.2.1 建设项目主要污染源、污染物及处理措施 465.2.2 废气 .46 5.2.3 废水 .47 5.2.4 废液与废渣 .......47 5.2.5 噪声 .47 5.2.6 绿化概括 ..47 5.2.7 环境管理及监测 ........47 5.2.8 环境保护费用 ...48 5.2.9 预期达到的效果 ........48 6 投资估算与经济评价 ....49 6.1 投资估算 [34] 49 6.1.1 投资分析 ..49 6.1.2 编制依据 ..49 6.2 经济评价 [35] 50 6.2.1 资金筹措 ..50 6.2.2 生产成本估算 ...50 6.2.3 销售收入和税金估算 51 6.2.4 财务评价指标 ...53 6.2.5 不确定性分析 ...54 7 结论 .....56