The Trajectory-User Linking (TUL) task has gained increasing importance as it enables providers to establish connections between diverse online identifiers, ultimately enhancing user profiling and overall experience. Despite the increasing importance of this task, traditional machine learning methods based on statistical analysis lack the capability to capture the inherent interactions within time series and analyze their superior characteristics of a global view and energy compaction. Meanwhile, prevailing deep learning methodologies often tend to be intricate, imposing substantial computational burdens during model training. To address this challenge, the Complex-Valued Multi-Layer Perception with Fast Fourier Transform (CVMLP-FFT) is proposed, which extends traditional MLP to complex space to form complex-valued MLP, and designs two transformation modules on the channel and temporal features. The Channel Transformation Module facilitates communication across distinct channels, functioning on each timestamp by employing shared weights among segments to discern channel dependencies. Simultaneously, the Temporal Transformation Module focuses on learning temporal patterns in the frequency domain. Constructed with shared weights between channels, it also extracts temporal features. These temporal features are subsequently fed into a Softmax module for user identification, thereby recognizing and generating trajectories associated with specific users. Compared with baselines in a real-world user trajectory dataset, the proposed method achieves a notable 5.49% improvement in ACC. The CVMLP-FFT significantly reduces the computational burden, providing a more efficient solution for Trajectory-User Linking classification tasks.

根据公司污水井无组织排放废气特征,在实验室培养制取生物菌,将其固定在活性炭上,装填于原位无动力废气处理装置中,在实验室和含油污水井上验证装置对无组织排放气体的去除效果,成功解决了污水井无组织排放气体难以治理的问题.

随着石化企业环境保护压力的增加,宁夏石化公司积极开展污染物的源头治理工作.宁夏石化公司采用液化气深度脱硫清洁化技术对原液化气脱硫醇系统进行升级改造.在液化气深度脱硫技术的基础上,本着预防与治理相结合原则,实现污染物资源化利用.通过原料预处理、溶剂提效、尾气循环等措施,实现了液化气深度脱硫过程"用碱不排渣,用气不排废"的清洁化生产.

某炼油厂200×104t/a柴油加氢精制装置采用FRIPP的FHDW柴油加氢降凝技术,配套使用FHUDS加氢精制催化剂和FDW-3降凝催化剂级配体系,开工使用真硫化态催化剂,大幅缩短开工时间,根据柴油产品市场需求,利用改变反应苛刻度等关键运行参数实现了装置加工模式及精制柴油产品物性指标灵活调整的目标.

本文介绍了200万吨/年柴油加氢装置高压换热器E102大检修前的运行状况,通过aspen模型对E102传热系数的模拟核算,评价了装置高压换热器运行中可能存在的结垢腐蚀问题;结合2020年8月大检修期间对E102的拆检情况,分析了加氢高压换热器结垢腐蚀的原因[1-4];由于大检修期间对E102进行了彻底的检修清理,装置开工后,高压换热器传热系数得到很大提高,热端温差大幅降低,反应系统运行状况得到较好改善,为装置长周期安全稳定运行奠定了良好基础.

参照国际标准,企业传统碳源划分为直接排放源、间接排放源和其他排放源,难以体现炼化企业碳排放多渠道、多元化的特征.结合炼化企业生产特点,从污染物全过程控制角度将碳源再划分为原材料及能源输入、产品生产、污水处理3个环节,提出原材料及能源输入低碳化,实现碳排放源的源头控制;产品生产环节低碳化,实现碳排放的过程控制;污水处理环节低碳化,实现碳排放的末端控制.基于生产过程的炼化企业碳源识别,以期协调解决能源生产和碳排放冲突的矛盾,为炼化企业开展节能减排提供依据.

宁夏石化公司炼油厂10×104t/a苯抽提装置采用SUPER-SAE-Ⅱ苯抽提工艺技术,装置自2012年开工以来系统腐蚀严重,因管线及设备腐蚀泄漏造成装置多次停工,给装置正常生产及石油苯产品质量升级带来严重影响.为了拓展市场,增加产品收益,装置通过多项技术改造及工艺优化调整,实现了装置产品由石油苯-535到石油苯-545的产品质量升级.

笔者研究了油田含油污泥的理化特性,探讨了调质-超声破乳-离心分离工艺处理油泥的可行性,进行了现场工业化应用试验,确定了工艺参数,在最优参数下该工艺处理后离心出口污泥含油小于2％.