Drilling and completion fluids may cause significant formation damage in oil gas reservoirs, directly affecting productivity. For many years, operators have applied different stimulation practices such as acidizing, oxidizers, chelating agents, enzyme treatment to remove associated with drilling filter cake. An enzyme-based biological was combined other chemicals or additives a selective well c...

BACKGROUND Concentration and purification of ethanol and other biofuels from fermentations are energy-intensive processes, with amplified costs at smaller scales. To circumvent the need for these processes, and to potentially reduce transportation costs as well, we have previously investigated bio-hybrid fuel cells (FCs), in which a fermentation and FC are closely coupled. However, long-term op...

Biomass catalytic fast pyrolysis is one of the most promising technologies for the production of renewable aromatics and olefins directly from solid biomass. In this study, catalytic pyrolysis experiments were carried out on biomass in a fluidized bed reactor using typical metal-loaded (Mg, K, Fe, Ga, and Ni) ZSM-5 zeolites as catalysts. The effects of catalysts on the product distribution and ...

The environmentally prevalent polybrominated diphenyl ether (PBDE) #47 and polychlorinated biphenyls (PCBs) #28 and #118 were challenged for 24 hours with a novel biomass-supported Pd catalyst (Bio-Pd(0)). Analysis of the products via GC-MS revealed the Bio-Pd(0) to cause the challenged compounds to undergo stepwise dehalogenation with preferential loss of the least sterically hindered halogen ...

Although liquid products derived from the pyrolysis of biomass are promising for production petroleum-like hydrocarbon fuels, catalytic burden hydrodeoxygenation must be reduced to achieve feasible upgrading processes. Herein, mild hydrotreating an acid-rich oil (bio-oil) with unusually high total acid number (588 mg KOH/g bio-oil) was performed stabilize low-quality bio-oil. Ru-added TiO2-supp...

The catalytic and thermal decomposition of plastic waste to fuels over low-cost catalysts like zeolite, clay, bimetallic material is highlighted. In this paper, several relevant studies are examined, specifically the effects each type catalyst used on characteristics product distribution produced products. plays an important role in oil yields quality. addition, quality yield products depend fa...