facilitated a hazard and operability study (HAZOP) for the planned upgrade project of Acrylic Acid & D40 solvent storage tank farm丙烯酸和D40溶剂储罐区的计划升级项目的危害和可操作性研究（HAZOP）提供了便利。

1.1        Scope

The HAZOP study intent was to review only those facilities excluded from the previous HAZOP, as well as to re-HAZOP all changes to systems, resulting from implementation of the previous HAZOP recommendations.  Relevant vendor packages were included in the current HAZOP. 

2.2范围

HAZOP研究的目的是仅审查先前HAZOP中排除的设施，以及重新HAZOP所有因实施先前HAZOP建议而导致的系统变更。相关供应商包包含在当前HAZOP中。

1.1     Process Description

The planned acrylic acid (ACA) & D40 solvent storage tank farm are used as a feed system of the LDP unit, which produces LDP for 7400 ton per year. The raw materials (ACA or/and D40) will be transported to the tank farm by tank truck, and then be pumped into the storage tank. Totally two independent sections are involved in this project, one is the ACA unloading and storage system, and the other is D40 unloading and storage system.

ACA UNLOADING AND STORAGE SECTION

The acrylic acid is a kind of assistant raw material for manufacturing the LDP. The wastage of the acrylic acid is 1000 ton per year. Before the storage tank is installed and taken into use, the acrylic acid is barrelled and transported by trucks. The volume of a barrel is 200L. The current process is that directly pump the acrylic acid into the reactor of LDP from the barrels, which takes more manpower and is more dangerous and harmful to the operators.

过程描述

计划中的丙烯酸（ACA）和D40溶剂储罐区用作LDP装置的进料系统，该装置每年生产7400吨LDP。原材料（ACA或/和D40）将由罐车运输至罐区，然后泵入储罐。本项目共涉及两个独立部分，一个是ACA卸载和储存系统，另一个是D40卸载和储存系统。

卸料及贮存组

丙烯酸是生产低密度聚乙烯的辅助原料。丙烯酸的年损耗量为1000吨。储罐安装投入使用前，丙烯酸采用桶装，汽车运输。桶的体积是200升。目前的工艺是将丙烯酸从桶中直接泵入LD