Zhong Guo Hua Gong Bao
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南化贵金属催化剂助力橡胶防老剂生产
Zhong Guo Hua Gong Bao· 2025-12-22 03:55
Core Viewpoint - The company has successfully replaced traditional copper-based catalysts with self-developed precious metal catalysts in the production of rubber antioxidants, leading to significant improvements in production efficiency and process stability [1] Group 1: Production Process Innovation - The new precious metal catalyst allows for a 40% reduction in reaction temperature compared to traditional methods [1] - Pressure during the production process has been reduced by 60% with the new catalyst [1] - The overall production process has been shortened by one-third, enhancing continuity and stability [1] Group 2: Technical Development - The company’s research institute developed the precious metal catalyst specifically for rubber antioxidant production, addressing issues related to complex procedures and side reactions [1] - The implementation of fixed-bed continuous hydrogenation technology complements the new catalyst, marking a significant technological advancement in the production process [1]
大橡塑芯轴加工技术获突破
Zhong Guo Hua Gong Bao· 2025-12-22 03:55
Core Viewpoint - Dalian Rubber and Plastic Machinery Co., Ltd. has successfully overcome the technical bottleneck in high-precision processing of ultra-long and ultra-fine spindle shafts, enhancing capabilities in high-end equipment manufacturing [1] Group 1: Technical Achievements - The company has developed a new innovative process called "segmented cutting + dynamic precision compensation" to address challenges in spindle shaft processing [1] - The processing requires controlling dimensional errors at the micron level while managing material deformation and vibration during high-speed cutting [1] Group 2: Methodology and Implementation - The team, led by skilled master Zhang Shujun, decomposed the spindle processing into dozens of critical nodes and conducted repeated tests to gather deformation data under various working conditions [1] - A total of 15 technical measures were systematically implemented during the breakthrough process, along with the establishment of standard storage specifications [1] Group 3: Technical Support System - The company has constructed a technical support system that covers the entire processing chain, ensuring comprehensive support for high-precision manufacturing [1]
第二代高效低耗尿素工艺通过鉴定
Zhong Guo Hua Gong Bao· 2025-12-22 03:55
Core Viewpoint - The second-generation high-efficiency synthesis and low-energy consumption urea process technology developed by China Five Ring Engineering Co., Ltd. has been recognized as internationally leading and innovative, with complete independent intellectual property rights [1] Group 1: Technology Innovation - The new generation of full condensation reactor and high-pressure loop process has achieved the synthesis of urea through two-step reactions under optimal conditions, significantly improving conversion rates and reducing steam and circulating water consumption [1] - The technology has fundamentally broken the energy consumption bottleneck of traditional urea plants [1] Group 2: Performance and Achievements - The urea plant of Anhui Haoyuan Chemical Group Co., Ltd., based on this technology, has demonstrated operational indicators exceeding design values during a 72-hour on-site assessment, with steam consumption reduced to 562.9 kg per unit of urea product at 2.5 MPaG, reaching advanced industry levels [1] - The second-generation technology has been promoted in over 30 sets domestically and internationally, with a production capacity exceeding 25 million tons per year [1] - The technology has received multiple awards, including the Hubei Provincial Patent Gold Award and the First Prize for Technological Progress from the Nitrogen Fertilizer Industry Association, along with 22 national authorized patents, including 7 invention patents [1]
全国大学生化工安全设计大赛决赛举行
Zhong Guo Hua Gong Bao· 2025-12-22 03:48
Group 1 - The "Xintai Cup" National College Student Chemical Safety Design Competition finals and Chemical Safety Education Forum were held at South China University of Technology on December 6 [1] - Over 200 teams from various universities participated in the competition, with representatives from ten universities, including Sichuan University and Central South University, advancing to the finals [1] - The final projects included a design for an annual production of 80,000 tons of 1,4-butanediol using the succinic anhydride hydrogenation method and a design for a green hydrogen project with an annual output of 2,000 tons, both winning special awards [1] Group 2 - The forum was organized by the Chinese Chemical Society, hosted by South China University of Technology, and co-organized by Shenzhen Xintai Pharmaceutical Co., Ltd., aiming to create a platform for exchanging experiences in chemical safety technology and education [1] - The forum included thematic interviews and speech sessions to enhance discussions on chemical safety [1]
提供低碳高效灵活新型能源动力 ——记面向新型电力系统的超临界二氧化碳发电技术及应用
Zhong Guo Hua Gong Bao· 2025-12-22 03:48
Core Viewpoint - The development of supercritical carbon dioxide (sCO2) power generation technology is crucial for achieving China's dual carbon goals and constructing a new power system, marking a significant advancement in modern energy systems [1][2]. Group 1: Advantages of Supercritical CO2 Power Generation - sCO2 power generation offers high efficiency, flexibility, and compact system design compared to traditional steam power generation, with an efficiency increase of 3-5 percentage points and a regulation speed 3-4 times faster than traditional systems [2]. - The technology is suitable for various energy sources, including coal, solar thermal, and nuclear power, addressing the challenges posed by the intermittency of renewable energy sources [2]. Group 2: Key Technological Breakthroughs - The Xi'an Thermal Engineering Research Institute has made significant advancements in the principles and control strategies for sCO2 systems, leading to the establishment of a 5 MW sCO2 test unit, which has successfully operated for over 2000 hours [3]. - The research has resulted in a comprehensive invention system for sCO2 power generation, achieving international leading levels in performance [3]. Group 3: Commercialization Prospects - A strategic partnership has been formed between Xi'an Thermal Engineering Research Institute and Yulin Energy Group to develop a 50 MW coal-fired sCO2 power generation demonstration unit, expected to exceed 40% efficiency and provide flexible peak regulation capabilities [4]. - This project aims to utilize existing power plant infrastructure, positioning it as the world's first commercially viable large-scale sCO2 power generation unit [5].
肖丰收:“分子围栏”的构筑者
Zhong Guo Hua Gong Bao· 2025-12-22 03:42
Core Insights - The 17th Hou Debang Chemical Science and Technology Award has been announced, recognizing 50 outstanding scientists, including 5 for Achievement Award, 15 for Innovation Award, and 30 for Youth Award [1] - Professor Xiao Fengshou from Zhejiang University received the Achievement Award for his significant contributions in the field of chemical engineering, particularly in zeolite molecular sieve synthesis and catalytic processes [1][7] Group 1: Molecular Sieve and Catalysis Innovations - The concept of "molecular fence" proposed by Xiao Fengshou offers a novel strategy to enhance catalytic performance by controlling the diffusion of reactants and products, addressing fundamental challenges in catalysis [2][3] - The "molecular fence" allows for the selective confinement of byproducts like hydrogen peroxide, facilitating their reaction with methane to produce methanol while enabling the methanol to diffuse out freely [2][3] - This approach has been successfully applied to various catalytic systems, demonstrating its versatility and effectiveness in improving reaction selectivity and efficiency [3] Group 2: Green Synthesis Techniques - Xiao Fengshou's team has developed a green synthesis route for zeolite molecular sieves, eliminating the need for expensive organic templates and reducing environmental pollution [5][6] - The innovative method involves using a small amount of zeolite seeds to guide nucleation, bypassing the spontaneous nucleation phase and leading to high yields of zeolite without organic templates [5][6] - The team also discovered a solvent-free synthesis method that utilizes only the crystallization water present in the raw materials, achieving nearly 100% yield and zero wastewater discharge [6] Group 3: International Recognition and Collaboration - Xiao Fengshou has received prestigious awards such as the Donald W. Breck Award and the Advance Catalysis Award, highlighting his contributions to the field of catalysis [7] - As the Vice President of the International Zeolite Association, he is committed to promoting Chinese catalytic science on the global stage and enhancing international collaboration [7] - The ongoing cycle of research breakthroughs leading to industrial applications and vice versa is driving the advancement of China's chemical engineering sector [8]
川渝共育两个国家先进制造业集群
Zhong Guo Hua Gong Bao· 2025-12-22 03:41
Core Insights - The Chengdu-Chongqing region aims to establish a world-class advanced manufacturing cluster, focusing on electronic information and biomedicine, with a total scale exceeding 2.2 trillion yuan [1] Group 1: Collaborative Mechanisms - Sichuan has established a provincial mechanism for collaborative promotion of key industries, while Chongqing has implemented a "33618" modern manufacturing cluster system [1] - The two regions are jointly executing a three-year action plan to enhance the electronic information advanced manufacturing cluster [1] Group 2: Industry Chain Development - Sichuan and Chongqing are strengthening their industry chains in areas such as integrated circuits, new displays, and innovative pharmaceuticals, creating a supply-demand matching platform that has facilitated over 100 billion yuan in mutual orders [1] Group 3: Innovation and Infrastructure - The two provinces are jointly pursuing over 100 national-level innovation platforms, including the National Innovation Center for Ultra-High Definition Video and major scientific infrastructure for translational medicine [1] Group 4: Investment Opportunities - An investment opportunity list was released, covering 35 industrial parks in the Sichuan-Chongqing region, focusing on six key industries for precise supply-demand matching [2] - A specialized service capability list was compiled, detailing professional services in research, industry, and finance [2] Group 5: Biomedicine Initiatives - A list of 104 public service platforms in biomedicine was published, including 41 pilot testing platforms and 28 enterprise technology centers [2] - Five cross-regional cooperation projects were initiated, involving institutions like Sichuan University West China Hospital and companies such as Kelun Pharmaceutical and Boteng Pharmaceutical [2] Group 6: Electronic Information Sector - The first five service workstations for the electronic information advanced manufacturing cluster were inaugurated, and several projects focused on AI quality control in semiconductor processes were signed [3] - Key parks like Chongqing Xiyong Microelectronics Industrial Park and Sichuan Communication Industry Park are actively engaging in ecosystem cooperation [3]
行业报告显示:北美PET回收率维持高位
Zhong Guo Hua Gong Bao· 2025-12-22 03:35
Core Insights - The North American PET recycling system demonstrates significant resilience despite market fluctuations, with overall recycling rates exceeding internationally recognized benchmarks and key improvements in system efficiency [1] Group 1: Recycling Rates - In 2024, the recycling rate for PET plastic bottles in the U.S. is reported at 30.2%, a decrease from the 32.5% peak in 2023, yet still above the 10-year average of 29.5% [1] - The total recycling rate for PET bottles in North America reached 39.2%, marking the sixth consecutive year above the 30% "effective recycling" benchmark set by the Ellen MacArthur Foundation, indicating the effectiveness of the recycling system [1] Group 2: System Efficiency - The key metric for material utilization in the recycling process, the ratio of total output to total input, improved from 81.5% in 2023 to 85.2% in 2024, reflecting more effective recovery and internal circulation of by-products during production [1] - The introduction of chemical recycling technologies, particularly depolymerization, achieved scaled operations for the first time, processing nearly four times the amount of non-traditional feedstock compared to the previous year, showcasing the impact of technological advancements on overall system capacity [1] Group 3: Market Dynamics - Domestic sales of recycled PET in North America saw a slight decline of 3%, while imports surged to a historic high, accounting for 23% of total supply [2] - Bottled applications remain the primary demand driver, consuming over 60% of domestic PET, and despite increased supply of virgin resin exerting some pressure, the average recycled content in new PET bottles in the U.S. for 2024 is 15.9%, higher than the average of the previous three years [2]
丹格特炼油厂建第二条生产线
Zhong Guo Hua Gong Bao· 2025-12-22 03:32
Core Viewpoint - Dangote Oil Refinery and Petrochemical Company in Nigeria has selected Honeywell as a partner to build a second production line, aiming to double its refining capacity by 2028 [1] Group 1: Project Details - The project will utilize Honeywell's advanced technology, services, proprietary catalysts, and equipment to reduce production costs, improve efficiency, and increase output [1] - The refinery's daily production capacity is expected to increase from 650,000 barrels to 1.4 million barrels, making it the largest single-site refinery globally [1] - The refinery will obtain a license for Honeywell UOP's Oleflex technology, which will catalyze propane dehydrogenation, with an expected annual production of 750,000 tons of propylene [1] Group 2: Collaboration and Expansion - Dangote Group has signed a memorandum of understanding with the Indian Engineering Company (EIL) in Mumbai, India, for project management and engineering procurement construction management for the refinery expansion [1] - The expansion project of the refinery will be synchronized with the expansion of Dangote Group's fertilizer plant [1] - The first production line has a capacity of 650,000 barrels per day, while the second line is expected to have a capacity of approximately 750,000 barrels per day [1] Group 3: Environmental Standards - The gasoline, diesel, jet fuel, and polypropylene produced by the Dangote refinery will meet Euro 5 emission standards [1]
罗姆拟建PMMA化学回收工厂
Zhong Guo Hua Gong Bao· 2025-12-22 03:32
Core Viewpoint - NextChem, a subsidiary of Italy's Maire Group, has been commissioned by Rohm to conduct a feasibility study for a chemical recycling plant for waste PMMA in Worms, Germany, aiming to enhance PMMA circularity in Europe [1] Group 1: Project Details - The planned facility will process 5,000 tons of PMMA waste annually and will be fully integrated into Rohm's existing production site [1] - The project will utilize NextChem's proprietary NXRe depolymerization technology, which is claimed to reduce the carbon footprint of MMA and its main derivative PMMA by over 90% compared to traditional methods [1] Group 2: Collaboration and Goals - Rohm and NextChem aim to eliminate the incineration and landfill of PMMA-related production waste by 2030 through recycling initiatives [1] - MyRemono is currently constructing a chemical recycling plant in Italy with a similar capacity of 5,000 tons per year, expected to be completed by 2026 [1] - Rohm has agreed to purchase recycled MMA produced at the Italian facility for the production of circular PMMA products, as per the agreement signed in December 2024 [1]