工艺描述中英文.docVIP

Page 1 of 11 Process Description 工艺描述 x 01 19.07.2010 M. Schmidt M. Warter M. Schmidt Status Issue Date Description Prepared by Checked by Approved by Form: AA-Q-PP 2020.610.014 (EN) / Issue 01 dated 3.6.09 Refer to protection notice ISO 16016 Table of Contents 目录 1 GENERAL总则 3 2 PROCESS UNITS 工艺单元 3 2.1 PROCESS UNIT 11 – INLET FACILITIES 工艺单元11-入口设备 4 2.2 PROCESS UNIT 13 – MERCURY-REMOVAL 工艺单元13 –汞脱除 4 2.3 PROCESS UNIT 12 – CO2 REMOVAL 工艺单元12- CO2 脱除 4 2.4 PROCESS UNIT 16 – DEHYDRATION 工艺单元 16-脱水 6 2.5 PROCESS UNIT 23 – NATURAL GAS LIQUEFACTION 工艺单元23 –天然气液化 8 2.6 PROCESS UNIT 41 - MRC COMPRESSION 工艺单元41-MRC压缩 9 2.7 PROCESS UNIT 47 – MRC MAKE-UP UNIT 工艺单元47-MRC补充单元 10 2.8 PROCESS UNIT 78 – TANK RETURN GAS COMPRESSION 工艺单元78-储罐返回气压缩 10 1 General 总述 The LNG Plant is designed for a production of approx. 1200 tons per day net LNG equivalent to a natural gas feed flow of 62500 Nm3/h. The plant is capable to operate at 50-110 % of design capacity. LNG装置设计LNG生产能力约1200吨/天62500 标方/小时。 该工厂能在设计能力50－110％的负荷下运行 The plant consists of following process units: (Please refer to the Block Diagram, doc. no. AA P-FD 1001.001 in Attachment 1-1) Downstream of the Feed Gas Inlet Facilities (Unit 11) the feed gas is freed from mercury (Unit 13). Subsequently the feed gas is sweetened in the CO2 removal unit (Unit 12), before the sweet feed gas is dehydrated (Unit 16). 此装置由以下工艺单元组成：（请参照附件1-1的方框图， 文件编号AA P-FD 1001.001 ） 经过原料气入口过滤（单元11）， 原料气与汞分离 (单元13)，与氧分离(单元14)。 随后，原料气在二氧化碳脱除单元（单元12）中被低硫化，然后，原料气进行脱水（单元16）。 The dry and pretreated feed gas is then liquefied and subcooled (Unit 23) by means of a mixed refrigerant cycle (Unit 41). A part of the nitrogen contained in the feed gas is removed and released to atmosphere. 在23单元， 干燥、预热的原料气通过混合制冷剂循环（单元41）液化、过冷。 原料气中的一部分氮气被脱除， 排放到大气中。 The produced LNG is stored slightly above ambient pressure and