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实用新型
CN202569906U 炼油厂干气变压吸附回收乙烯和氢气的装置 失效 - 权利终止

炼油厂干气变压吸附回收乙烯和氢气的装置
摘要：
本实用新型公开了炼油厂干气变压吸附回收乙烯和氢气的装置。包括变压吸附Ⅰ和变压吸附Ⅱ两个部分，变压吸附Ⅰ包括：第一吸附塔、第二吸附塔、第三吸附塔、第四吸附塔、第五吸附塔、第一真空缓冲罐、第一逆放罐、废气缓冲罐；变压吸附Ⅱ包括：第六吸附塔、第七吸附塔、第八吸附塔、第九吸附塔、第十吸附塔、第二逆放罐、混合罐、氢气缓冲罐、第二真空缓冲罐、混合罐。以处理量为1000Nm3/h炼厂气为例，可得90.71%的乙烯纯度和90%的乙烯回收率，可得99.99%的氢气纯度和95%的氢气回收率。
摘要（英）：

The utility model discloses a dry gas pressure swing adsorption (PSA) ethylene-and-hydrogen recycling device in an oil refinery. The dry gas PSA ethylene-and-hydrogen recycling device in the oil refinery comprises two parts including a PSA I and a PSA II, wherein the PSA I comprises a first adsorption tower, a second adsorption tower, a third adsorption tower, a fourth adsorption tower, a fifth adsorption tower, a first vacuum buffer tank, a first reverse-releasing tank and a waste gas buffer tank, the PSA II comprises a sixth adsorption tower, a seventh adsorption tower, a eighth adsorption tower, a ninth adsorption tower, a tenth adsorption tower, a second reverse-releasing tank, a mixing tank, a hydrogen buffer tank, a second vacuum buffer tank and a mixing tank. For example, when refinery gas of 1000 Nm3/h is treated, ethylene purity of 90.71 %, ethylene recovery rate of 90 %, hydrogen purity of 99.99 % and hydrogen recovery rate of 95 % can be achieved.

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