Hydrogen compressor outlet cut-off recovery system for naphtha reforming unit
A technology of hydrogen compressor and reforming unit, which is applied in the field of hydrogen compressor outlet liquid cut recovery system and naphtha reformer hydrogen compressor outlet cut liquid recovery system, which can solve the problem of liquid loss and the start-up of underground sewage pump High frequency problems, to achieve the effect of reducing labor intensity, saving electricity consumption, and improving the yield of the device
Active Publication Date: 2021-07-09
DAQING ZHONGLAN PETROCHEMICAL CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the problem of high start-up frequency of the underground sewage pump of the existing device and serious liquid loss in the background technology, and to provide a recovery system for the safe discharge of liquefied vapor in the liquefied vapor separation device. The naphtha The reformer hydrogen compressor exit cut liquid recovery system in the reforming unit can reduce the number of startups of the sewage pump, recover the material and improve the yield of the unit
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Embodiment 1
[0012] Daqing Zhonglan Petrochemical Co., Ltd. has implemented the present invention to the reforming unit, firstly, the analysis results of the liquid waste oil components of the outlet liquid separation tank of the reforming hydrogen compressor are as follows in Table 1; the components of the depentanizer feed oil are analyzed The result is as follows table 2:
[0013] Table 1
[0014]
[0015] Table 2:
[0016]
[0017] It can be seen from Table 1 and Table 2 that the components of the two oil products are roughly the same through analysis, so the waste oil discharged from the outlet of the reforming hydrogen compressor can be treated by the depentanizer.
[0018] The working process of the liquid cut recovery system at the outlet of the reforming hydrogen compressor of the naphtha reforming unit is as follows: the gas-liquid mixture generated by the reforming reactor enters the gas-liquid separation tank, and the separated gas with a hydrogen content of 80-83% passe...
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The invention relates to a system for recovering cutting liquid at the outlet of a reforming hydrogen compressor of a naphtha reforming unit. It mainly solves the problem of high start-up frequency and serious liquid loss of the underground sewage pump in the existing device. It is characterized in that: the inlet gas pipeline is connected to the reforming hydrogen compressor (1), the outlet of the reforming hydrogen compressor (1) is connected to the liquid separation tank (2), the top of the liquid separation tank (2) is connected to the outlet gas pipeline, and the liquid separation tank (2) The pipeline at the bottom of the tank is connected to the sewage tank (4), and the bottom of the tank (4) is connected to the sewage pump (5); the pipeline at the bottom of the tank (2) is also connected to a newly added liquid cutting pipeline (6) The feed line (7) to the depentanizer (3); the newly added liquid cutting line (6) is connected with a self-control regulating valve (8) and a valve (9). The naphtha reforming unit reforming hydrogen compressor outlet cut liquid recovery system can reduce the number of startups of the sewage pump, recover materials and improve the yield of the unit.
Description
technical field [0001] The invention relates to a liquid cut recovery system at the outlet of a hydrogen compressor in the technical field of petrochemical industry, in particular to a liquid cut recovery system at the outlet of a reforming hydrogen compressor of a naphtha reforming device. Background technique [0002] The naphtha reforming unit reforming hydrogen compressor outlet liquid separation tank accumulates liquid dirty oil, which requires the operator to discharge the dirty oil to the underground closed oil collection tank. The liquid needs to be cut every half an hour. The liquid level of the closed oil collection tank reaches a certain level. When the height is high, start the dirty oil pump to send the cut dirty oil to the outside. As a result, the starting frequency of the underground sewage pump is high, and the liquid loss is serious, which not only reduces the liquid yield of the device, but also increases the labor intensity of the operators. Contents of...
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IPC IPC(8): C10G35/00C10G35/24
CPCC10G35/00C10G35/24
Inventor 徐占久丁伟庞远洲庞云刘震于鸿玉
Owner DAQING ZHONGLAN PETROCHEMICAL CO LTD