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Recovery and utilization method for acidic water of hydrocarbon steam conversion hydrogen production plant

A hydrogen production device, acid water technology, applied in chemical instruments and methods, separation methods, distillation separation, etc., can solve the problem that acid water cannot be fully recycled, and achieve the effect of novel design and waste reduction

Inactive Publication Date: 2009-01-07
杨会喜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art and effectively solve the problem that the sour water in the steam reforming hydrogen production unit of hydrocarbons cannot be completely recycled, the present invention provides a novel design that can reduce the pollution and waste of sour water and can convert the steam reforming of hydrocarbons A New Method for Recycling All Acidic Water in Hydrogen Plant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The output of the sour water stripper is connected to the booster pump, the booster pump is connected to the filter by the water pipe, the outlet of the filter is connected to the cooler by the water pipe, and the water pipe of the cooler is connected to the water storage tank to produce hydrogen by steam reforming of hydrocarbons The sour water recovery and utilization device is used to convert the sour water from the hydrogen production unit of Cangzhou Oil Refinery. The pH is 6.1. The temperature at the top of the stripping tower is controlled at 98-101°C, and the temperature at the bottom of the stripping tower is controlled at 100-102°C. After being stripped by the stripping tower, the pH of the acidic water is 6.8. After filtering, it is filtered water, and then the filtered water is cooled to 66°C in the cooler and then sent to the water storage tank, and then the water pump is connected to the hydrocracking unit of Cangzhou Oil Refinery to be used as water inject...

Embodiment 2

[0014] The sour water recovery and utilization device of the steam reforming hydrogen production plant of hydrocarbons composed of the output of the acid water stripping tower connected to the booster pump, the booster pump is connected to the filter by the water pipe, and the outlet of the filter is connected to the water storage tank by the water pipe. The acidic water from the hydrocarbon steam reforming hydrogen production unit is tested to be PH 6.24, and is directly fed into the acidic water stripping tower through the water pipe connection. The acidic water stripping tower uses water steam for stripping. The temperature at the bottom of the stripping tower is controlled at 98-102°C. After being stripped by the stripping tower, the pH of the acidic water is 6.95. After the stripped water is boosted by a water pump, it is filtered through a filter and directly enters the water storage tank for use in the hydrogenation unit.

Embodiment 3

[0016] Use the booster pump input pipe to connect the sour water outlet of the hydrocarbon steam reforming hydrogen production unit, and the booster pump output pipe to connect the hydrogenation unit’s heat exchange and water injection pipes of the cooling equipment, and the hydrocarbon steam reforming hydrogen production unit is acidic The water recovery and utilization device is to convert the acidic water from the hydrocarbon steam conversion hydrogen production unit of the Cangzhou Oil Refinery to detect PH 6.32, and directly input it from the booster pump to the gasoline and diesel hydrotreating unit of the Cangzhou Oil Refinery to be used as water injection for heat exchange and cooling equipment .

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Abstract

This invention relates to a recovery and utilization method for acid water of a hydrocarbon steam transformation hydrogen-manufacturing device, which drives the acid water from a hydrogen-manufacturing device to an acid vapour extractive tower to carry out vapour extraction, the temperature at the top of the tower is controlled at 95-101deg.C, the bottom temperature is at 97-102deg.C, the pH of the extracted acid water is 6.5-7.5, and the water processed by vapour is boosted by a pump and filtered by a filter to get filtered water then to be cooled to 60-80deg.C to enter into a storage tank, which can reduce pollution and waste of acid water and recover and utilize all of the acid water as the water for heat-conversion and cooling devices or other devices.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a recycling method for acidic water of a hydrocarbon steam reforming hydrogen production device. Background technique [0002] Water is a precious resource for human beings to survive, and the chemical industry is one of the industries with a large water consumption. Therefore, with the increasing development of the chemical industry and the rapid advancement of science and technology, the recycling of water used in the chemical industry and water conservation appear more and more important. In the known technology, the acidic water produced by the steam reforming hydrogen production plant in the existing chemical industry is mainly transported to the boiler through the connecting pipeline, and becomes the boiler circulating water for recycling. However, due to the acidity of the hydrogen production plant The water is produced in the hydrocarbon steam reforming hydrogen p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D3/00C02F1/10C02F103/34
Inventor 杨会喜张智烁李宾
Owner 杨会喜
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