Solemn: Skilled expert in cracking production

He has been rooted in the front line for 30 years, has been engaged in hydrocracking operations, summarized 27 innovative operation methods, and obtained 6 utility model patents; He has been awarded Liaoyang Petrochemical Model Worker, Liaoyang Petrochemical Top Ten Craftsmen, Advanced Worker of CNPC, Technical Expert of Liaoning Province, Liaoning Craftsman, etc
.
He is the first-class post guard of hydrocracking in the three joint plant area of the refining operation department of Liaoyang Petrochemical Company.

Be diligent in thinking and ingenious

In 1992, he graduated from Liaoyang Petrochemical Fiber School and joined Liaoyang Petrochemical
.
At that time, the company's first hydrocracking plant was in the preparation stage, and as a key training object for future production backbones, it was sent to Jinling Petrochemical, Yangzi Petrochemical and Fushun Petrochemical for internship
.

The drawing process is the key to
enhancing the effectiveness of the internship and developing the ability to control the device.
While being proficient in the drawing process, he has developed the good habit
of discovering problems, asking questions, repeatedly speculating and humbly seeking advice until he finds a satisfactory answer.
This habit not only allowed him to improve his skill level rapidly, but also became the secret of his innovative internal circulation operation method of raw oil plant and rapid heating operation method of high-pressure heat exchanger in the operation of the second hydrocracking plant many years later
.

A copy of "Compilation of Hydrocracking Accidents" that he scooped up from the intern master made Zheng Zhong love it
.
"The 114 accidents recorded in the accident compilation are lessons from the past, and digesting and absorbing the lessons learned can eliminate hidden dangers in the bud in time
.
" Solemnly said
.
With his own problem investigation process derived from the accident compilation, he not only gained a deeper understanding of the hydrocracking unit, but also laid the foundation
for him to calmly deal with various problems and do a good job in emergency treatment.

In 1997, he was solemnly awarded the pacesetter of industrial furnace engineering in the Liaoyang Petrochemical Staff Technology Competition, and then twice won the Liaoyang Petrochemical Hydrocracking Plant Operation Competition Master
.
In 2010, as a simulation coach, he led the team to participate in the China Petroleum Heating Furnace Special Competition and won the team championship
.
In April 2021, PetroChina held the first trainer competition, where 85 players from 26 refining and chemical companies competed together
.
Solemnly entered the hydrocracking professional finals with the second place in the overall score, and won the best training program design award
for hydrocracking operators.

Take an inference from one case and take the pulse

Hydrocracking production needs to be carried out under high temperature and high pressure conditions, and the device has the characteristics of
flammable, explosive, hydrogen and corrosive.
To control this production device, not only need excellent operating skills, but also need to be careful and rigorous, and do not allow the slightest negligence
.

Solemnly and well at studying, we must not only ask the root of the "known" "lesions", but also draw inferences from one example
.
He recorded various "achievements" and "previous convictions" of past installations, and used more than ten "databases" of thousands of work diaries to build a "safety dam"
for the smooth operation of the installation.
Whenever there was an emergency, he would perform an "MRI scan" on the "lesion" to accurately find the root cause of the problem and give a solution
to "treat both the symptoms and the root cause".

In November 2020, when solemnly inspecting the high liquid level, a trace of oil on the guide flange of the second glass plate level gauge caught his attention
.
After searching and analyzing, it was judged that the level gauge might be leaking, and he immediately cut off
the gauge.
In the follow-up repair, it was confirmed that the bottom glass plate gasket of the level gauge had defects
.
Due to timely detection and correct disposal, circulating hydrogen containing hydrogen sulfide and reacting-generated oil leakage
are avoided.
In the past ten years, he has discovered and successfully handled more than
8 similar problems in a timely manner.

Practical work and dedication to create results

In May 2017, the 1 million tons/year hydrocracking unit was used as a supporting project for the optimization and efficiency improvement of Liaoyang Petrochemical Russian crude oil processing, and the industrial chain was partially shut down
.
The company put forward green shutdown requirements
of "gas does not go to the sky, oil does not land, sound does not disturb the people, and sewage does not discharge out".
The company appointed Zheng Zhong as the leader
of the green shutdown team.
He organized the production backbone to gather wisdom and planning, broke through many technical difficulties, and formulated a green shutdown operation method composed of visual closed discharge method, venting steam washing and absorption method, light recombination and shunt oil removal method, and temperature and pressure combination steam limit steam tower method, achieving the first green shutdown
.

After the plant was retrofitted and put into operation, the target product changed from diesel to naphtha
.
Due to the replacement of highly active catalysts and the insufficient cold hydrogen reserves, it is difficult for the naphtha yield to meet the design requirements
.
Solemnly played the role of a skilled expert again, and worked with technical personnel to formulate and implement a multi-yield naphtha optimization scheme composed of a number of measures such as high control of reaction conversion rate safety and fine control of fractionation product overlap, and achieved an 8% increase in the maximum yield of naphtha
.

Solemnity always said: "The best way to solve production problems is technological innovation
.
" Over the years, he has combined the ability to control the device with scientific work ideas, and summarized 27 innovative operation methods such as the internal circulation operation method of the raw oil device and the rapid heating operation method of the high-pressure heat exchanger, which has reduced the loss of more than 10 million yuan
for the enterprise.