烷基化装置开停工指南

惠州炼油烷基化操作手册 第四章 开停工指南 4－0 IV STARTUP/SHUTDOW N GUIDELINES 第四章 开／停工指南 The purpose of this section is to provide a basic understanding of the general steps taken in startup and shutdown of an alkylation unit. 本章主要介绍烷基化装置开停工的一般步骤。 The following are general recommended startup and shutdown guidelines for a STRATCO® Effluent Refrigerated Sulfuric Acid Alkylation. The final startup and shutdown guidelines will vary depending on different refineries’ alkylation unit layouts and operating practices. No attempt is made here to describe the opening or closing sequence of each valve or the exact flow rate of medium through each line. Sufficient description is given to demonstrate the general startup and shutdown of the major equipment only. 下面为STRATCO®流 出 物 致 冷 硫 酸 法 烷基化装置的推 荐 开停工方 案 ， 不 同 装置的最 终 开停工方 案 须 根 据 不 同 炼厂 烷基化装置的实 际 设 计 和 操作状 况 制 定 。此 处 并 不 具 体 描 述 每 条管 线 的阀 门 开关 顺 序 以 及 介质 流 率 ， 仅 对 主要设 备 的一般开停工步骤进 行 充 分 说 明 。 惠州炼油烷基化操作手册 第四章 开停工指南 4－1 Startup Guidelines 开工指南 In the following startup procedures, it is assumed that the alkylation unit has been made ready for the introduction of hydrocarbon, i.e., all equipment and piping are air-free and all utilities have been commissioned. 下述步骤基于以下条件：装置已经具备引烃条件，即设备、管线赶空气完毕、公用工程满足开工要求。 1. Alkylate/Isobutane Filling and Circulation 系统充填烷基化油和异丁烷、建立循环 a. Fill the debutanizer bottoms with alkylate from storage. (Light naphtha is recommended if no alkylate is available, but make sure the light naphtha contains no more than 5 LV% non-paraffin...