Effect of temperature, oxygen concentration, and CaO addition on SO2 and NOx emissions during oxygen-fuel combustion of municipal sludge

Sun, Shaoyan; Xu, Donghai; Liang, Youcai; Jiang, Gedong; Diao, Yun Fei; Gong, Xuehan; Wang, Bingsheng

doi:10.1016/j.joei.2022.10.012

Cited by 6 publications

(2 citation statements)

References 27 publications

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“…Specifically, the NO X emission from GDI was 44% and 32% of that of PGDI and PSDI, respectively. The main factors affecting NO X emissions include the oxygen fraction, cylinder temperature, and reserved time for high-temperature reactions [46]. As the data in Figure 11 show, PSDI still has a high NO X emission problem.…”

Section: Gaseous Emissions and Pn Emissionsmentioning

confidence: 99%

Effect of Hydrogen-Rich Syngas Direct Injection on Combustion and Emissions in a Combined Fuel Injection—Spark-Ignition Engine

Shang

Sun

et al. 2023

Sustainability

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To utilize the high efficiency of gasoline direct injection (GDI) and solve the high particulate number (PN) issue, hydrogen-rich syngas has been adopted as a favorable sustainable fuel. This paper compares and analyzes the effects of the injection configurations (GDI, gasoline port injection combined with GDI (PGDI), and gasoline port injection combined with hydrogen-rich syngas direct injection (PSDI)) and fuel properties on combustion and emissions in a spark-ignition engine. The operational points were fixed at 1800 rpm with a 15% throttle position, and the excess air ratio was 1.1. The conclusions show that PSDI gained the highest maximum brake thermal efficiency (BTE) at the MBT point, and the maximum BTE for GDI was only 94% of that for PSDI. PSDI’s CoVIMEP decreased by 22% compared with GDI’s CoVIMEP. CO and HC emissions were reduced by approximately 78% and 60% from GDI to PSDI among all the spark timings, respectively, while PSDI emitted the highest NOX emissions. As for particulate emissions, PSDI emitted the highest nucleation-mode PN, while GDI emitted the lowest. However, the accumulation-mode PN emitted from PSDI was approximately 52% of that from PGDI and 5% of that from GDI. This study demonstrates the benefits of PSDI for sustainability in vehicle engineering.

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Section: Gaseous Emissions and Pn Emissionsmentioning

confidence: 99%

Effect of Hydrogen-Rich Syngas Direct Injection on Combustion and Emissions in a Combined Fuel Injection—Spark-Ignition Engine

Shang

Sun

et al. 2023

Sustainability

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show abstract

“…Streets and Waldhoff (2000) analyzed China's emissions from 1990 to 1995 and predicted trends that provided insights into early emission control [16]. Li et al (2022), Sun et al (2022), and Zhang et al (2020) studied sulfur-removal technologies and the feasibility of stopping emissions before they are released [17][18][19]. Shams et al (2021) applied artificial neural networks (ANN) and multiple linear regression (MLR) models to predict SO 2 concentrations, providing technical support for emission measurements [20].…”

Section: Literature Reviewmentioning

confidence: 99%

A Study on the Effect of Innovation-Driven Policies on Industrial Pollution Reduction: Evidence from 276 Cities in China

Shi

Yan

2023

Sustainability

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The societal effects of industrial pollution have spurred heated debates, but more research into the influence and internal mechanism of innovative pilot city policies (IPCPs) on industrial emissions is needed. Using panel data from 276 Chinese cities between 2004 and 2018, the study employs a multi-period difference-in-differences model to explore the effects and mechanisms of pilot policies on industrial SO2 emissions, with a specific focus on how they can be mitigated by innovative techniques. The results indicate that (1) the Chinese innovative pilot city policies (CIPCPs) significantly reduced emissions in urban areas; (2) the concentration of talent, innovation policy, venture capital, and technology plays a pivotal role; and (3) the SO2 reduction effects are more pronounced in larger cities, such as super-large, mega-, and first-tier cities in the southeast, and in cities with a high market potential. This study provides empirical evidence to support the promotion of sustainable economic and social development, the resolution of environmental pollution problems, and the enhancement of public health.

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Intrinsic reaction selectivity between gaseous HCl and SO2 over ethanol-hydrated CaO adsorbent in coal-fired flue gas dechlorination

Liu,

Wang,

Geng

et al. 2023

Chemical Engineering Journal

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Effect of temperature, oxygen concentration, and CaO addition on SO2 and NOx emissions during oxygen-fuel combustion of municipal sludge

Cited by 6 publications

References 27 publications

Effect of Hydrogen-Rich Syngas Direct Injection on Combustion and Emissions in a Combined Fuel Injection—Spark-Ignition Engine

Effect of Hydrogen-Rich Syngas Direct Injection on Combustion and Emissions in a Combined Fuel Injection—Spark-Ignition Engine

A Study on the Effect of Innovation-Driven Policies on Industrial Pollution Reduction: Evidence from 276 Cities in China

Intrinsic reaction selectivity between gaseous HCl and SO2 over ethanol-hydrated CaO adsorbent in coal-fired flue gas dechlorination

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