As a Hydrogen Peroxide Manufacturing Plant, share with you.
Process
First, determine the plan. When determining the specific device flow, it is
necessary to pay attention to the three-stage vaporization method used in the
entire flow, so as to realize the rational setting of the initial distillation
tower, the atmospheric pressure tower, and the vacuum tower.
Distillation Technology
Second, determine the number of vaporization sections. Comprehensively
referring to the corresponding characteristics of the crude oil of the
enterprise, it is recommended to use the initial distillation tower equipment,
which is designed to better adapt to changes in various types of conditions.
Among crude oil materials, high-boiling fractions with a temperature above 350
degrees Celsius can be regarded as the main raw materials required for the
corresponding equipment of catalytic cracking, distillate lubricating oil and
hydrocracking. After the analysis of the above reasons, it is necessary to
implement the effective setting of the decompression tower equipment.
Third, choose a heat exchange strategy. Combining the actual situation of the
company's oil refining and relevant experience, and integrating various factors,
the corresponding process content can be roughly obtained. Dehydration and
desalination measures are taken for crude oil at 40 to 50 degrees Celsius, and
then heat exchange is completed in two ways; the gasoline component at the top
of the overhead tower is condensed and cooled, part of which will enter the top
of the tower and play a good reflux effect, and the other part After the cooling
is continued, it is output by the device. It should be noted here that, whether
to use a two-stage vaporization process for atmospheric distillation, a
comprehensive analysis of relevant factors should be performed according to
specific conditions. If the crude oil contains many light fractions, the
temperature of the crude oil will increase after a series of heat exchanges.
Vaporization of the distillate will cause the pipeline pressure to drop. As a
result, the outlet pressure of the crude oil pump will increase, and the
pressure resistance of the heat exchanger should also increase.
Energy saving measures
Generally speaking, an oil refinery is a production entity with huge energy
consumption. Atmospheric and vacuum distillation equipment is one of the most
prominent equipment. Therefore, to fully realize the optimal use of energy and
minimize the energy consumption of the device as much as possible has become a
key issue in the production design process, and therefore more reasonable
energy-saving measures must be adopted. First, optimize and improve the process.
Atmospheric and vacuum distillation equipment is recommended to use the initial
distillation column process, which aims to effectively reduce the heating
furnace load; in order to fully reduce the cooling load, it is required to use a
two-stage condensation reflux process at the top of the atmospheric column; The
circulating reflux of the pressure tower can realize the optimization and
improvement of the heat flow heat exchange temperature, and reduce the
condensing and cooling load on the top of the tower as much as possible, thereby
improving the corresponding heat recovery rate of the equipment. Second,
optimize the operation of the heating furnace equipment to maximize the use
efficiency; recycle the low-temperature waste heat generated; select new heat
exchange equipment to fully enhance the actual heat exchange efficiency;
optimize and improve the steam consumption situation as much as possible, Reduce
overall consumption.
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