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The technological achievements of Jiangsu Longye Energy-Saving Technology Co., Ltd.’s “Coke Oven Risers Waste Heat Recovery System with Nano Self-Cleaning Coated Heat Exchangers” have reached an internationally leading level.

Release date:

2020-11-24

November 2020 month 24 On [date], the Chinese Society for Metals convened a meeting in Beijing. “Completed jointly by Jiangsu Longye Energy-Saving Technology Co., Ltd., MCC Jiaonai (Dalian) Engineering Technology Co., Ltd., Fujian Sangang Minguang Co., Ltd., and Wuhan University of Science and Technology” Coke Oven Risers Heat Recovery System with Nanoscale Self-Cleaning Coated Heat Exchangers ” Science and Technology Achievement Evaluation Meeting. The meeting was chaired by the Secretary-General of the Chinese Society for Metals. Wang Xinjiang Host, Jiangsu Longye Energy-Saving Technology Co., Ltd. Company Chairman Meng Xiaodong, Li Chao, Deputy General Manager of MCC Jiaonai (Dalian) Engineering Technology Co., Ltd., Wu Jianhong, Director of the Coking Plant at Fujian Sangang Mingguang Co., Ltd., and Wang Shijie, Head of the Department of Chemistry at Wuhan University of Science and Technology, along with their delegation… Attended the meeting.

This evaluation meeting By Academician Yin Ruiyu of the Chinese Academy of Engineering Wang Tianyi, Director of the Evaluation Expert Committee and Director of the Expert Committee of the Chinese Society for Metals, and Cui Peijiang, President of the China Coking Industry Association, serve as Deputy Directors of the Evaluation Committee’s Expert Committee. ， In addition, eight other members jointly constitute the Evaluation Expert Committee. Evaluation Expert Committee The experts listened to Jiangsu Longye Project The group reviewed the development report, user‑usage report, economic‑benefit report, and scientific‑and‑technological novelty search report, and examined the evaluation materials. Following questioning and deliberation, they ultimately formulated their expert opinion on the scientific and technological achievement.

The evaluation team’s experts on our jointly completed… Project Outcome: “Coke Oven Risers Heat Recovery System with Nanoscale Self-Cleaning Coated Heat Exchangers” It received high praise, with the project being recognized for its innovative approach that integrates industry, academia, and research. Addressing the challenges of efficiently, stably, and reliably recovering waste heat under operating conditions characterized by high temperatures, corrosive environments, and cyclical temperature fluctuations in the coke oven riser pipe—conditions that have long hindered such efforts—the project has overcome technical hurdles such as water leakage, tar deposition, and dry‑burning. Through independent development, it has pioneered a system‑level engineering solution featuring a nano‑self‑cleaning coating on the coke oven riser‑pipe heat‑exchanger, along with a complete waste‑heat recovery unit. This breakthrough enables safe, environmentally friendly, long‑life, and highly efficient operation, delivering significant energy‑saving, emission‑reducing, and economic benefits. 。 This technology has been successfully implemented at numerous coking enterprises, including Fujian Sansteel, WISCO Coking, and Shandong Iron & Steel Rizhao, with 18 units already in commercial operation, providing robust technical support for the green transformation of the coking industry.

Evaluation expert Committee Finally, a consensus was reached. , believes “Coke Oven Risers Waste Heat Recovery System with Nanoscale Self-Cleaning Coated Heat Exchangers” Project The technological achievements have reached an internationally leading level.

Group photo of the project team and the evaluation expert committee.

Evaluation Expert Committee

Project Team

The fourth session of the Seventh Members’ (Directors’) Congress of the China Coking Industry Association was successfully held in Changzhou, Jiangsu Province.

On November 22, 2020, our company successfully signed a sales contract with Henan Liyuan New Energy Technology Co., Ltd. for equipment including two 60‑hole, 6.25‑meter rising‑tube heat exchangers for the 1.28 million tons per year coking and coal‑gas comprehensive utilization project.

The fourth session of the Seventh Members’ (Directors’) Congress of the China Coking Industry Association was successfully held in Changzhou, Jiangsu Province.

Latest Updates

We warmly congratulate Jiangsu Longye Energy-Saving Technology Co., Ltd. on successfully securing the EPC contract for the waste heat recovery project of four sets of eight coke ovens’ riser pipes at Ningxia Baofeng Energy Group!

We warmly congratulate Jiangsu Longye Energy‑Saving Technology Co., Ltd. on successfully securing the EPC contract for four sets of eight coke oven riser‑pipe waste‑heat recovery systems for Ningxia Baofeng Energy Group! This project marks a significant milestone, setting a new record for the company’s waste‑heat recovery portfolio and underscoring our robust expertise in the coking‑industry energy‑saving sector.

These nine key industries will comprehensively implement energy-saving and carbon-reduction upgrades!

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May Coal Tar and Crude Benzene Market Overview

In May, the domestic coal tar market saw an average spot price of approximately RMB 3,644 per ton, down RMB 203 per ton from the previous month (RMB 3,847), a decline of 5.28%. Price ranges were as follows: Shanxi, Hebei, and Shandong—RMB 3,780–4,180 per ton; Southwest China—RMB 3,550–3,900 per ton; Northeast China—RMB 3,290–4,010 per ton; and Northwest China—RMB 3,260–3,850 per ton.

Upholding Stringent Safety Standards and Strengthening the Protective Safeguards: Jiangsu Longye Holds a Company-Wide Meeting on Safety Management

On May 25, Jiangsu Longye Energy-Saving Technology Co., Ltd. convened a company-wide safety management meeting to thoroughly learn from the tragic lessons of the May 22 coal-mine gas explosion in Qinyuan County, Changzhi City, Shanxi Province. The meeting conveyed and studied the guiding principles outlined at Jiangsu Longye’s work conference on workplace safety, re‑mobilized, redeployed, and reinforced the company’s overall safety production efforts, and resolutely worked to prevent and curb all types of production safety accidents.

Warm congratulations to the Engineering Department of Jiangsu Longye Energy-Saving Technology Co., Ltd. on being awarded the prestigious “National Model Worker Team” title!

Recently, the All-China Federation of Trade Unions announced the list of recipients of the 2026 National May Day Labor Awards. The Engineering Department of Jiangsu Longye Energy-Saving Technology Co., Ltd. stood out among numerous applicant teams nationwide, earning the national-level “National Model Worker Unit” honor thanks to its outstanding performance, ongoing technological innovation, and exceptional professional competence.

Technology Empowers Marketing, Expertise Wins the Market — Jiangsu Longye’s Marketing Center Conducts Specialized Technical Training

To strengthen the market team’s professional foundation and enable frontline marketing personnel to more precisely communicate product core benefits and efficiently align with customer needs, Jiangsu Longye Energy‑Saving Technology Co., Ltd.’s Marketing Center recently organized a specialized technical training session. The training focused on two key modules—product characteristics and applications of nano‑high‑temperature‑resistant thermal insulation materials, and the technology behind riser‑tube waste‑heat recovery—empowering the market through expertise and fostering synergy between technology and marketing.

April Market Overview and Operational Dynamics of the Coking Industry

According to economic data released by the National Bureau of Statistics, in April, the value added of industrial enterprises above designated size increased 4.1% year on year and 0.05% month on month; total retail sales of consumer goods reached RMB 3.7247 trillion, up 0.2% year on year; nationwide fixed asset investment (excluding rural households) declined 2.36% month on month; profits of industrial enterprises above designated size rose 24.7% year on year; as of the end of April, accounts receivable for such enterprises stood at RMB 27.44 trillion, up 7.2% year on year, while finished goods inventories totaled RMB 6.95 trillion, an increase of 6.7%. From January to April, the value added of industrial enterprises above designated size grew 5.6% year on year; total retail sales of consumer goods amounted to RMB 16.4941 trillion, up 1.9% year on year; nationwide fixed asset investment (excluding rural households) reached RMB 14.1293 trillion, down 1.6% year on year; and the total profits of industrial enterprises above designated size totaled RMB 2.43584 trillion, up 18.2% year on year. Among these, the ferrous metal smelting and rolling industry (the steel sector) reported total profits of RMB 7.58 billion, a 51.5% year-on-year decline, while the petroleum, coal, and other fuel processing industry (including coking) posted total profits of RMB 40.42 billion, compared with a loss in the same period last year.

Jiangsu Longye Energy‑Saving Technology Co., Ltd. is a comprehensive energy‑saving and emission‑reduction service provider that integrates R&D, design, manufacturing, engineering general contracting, and operation‑and‑maintenance services.

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