Effect of sulphuric acid pretreatment concentration on the behaviour of CoOX/γ-Al2O3-SO4 monolithic catalysts in the lean CH4-SCR process

2009 ◽  
Vol 91 (1-2) ◽  
pp. 423-427 ◽  
Author(s):  
J.C. Martín ◽  
S.B. Rasmussen ◽  
S. Suárez ◽  
M. Yates ◽  
F.J. Gil-Llambías ◽  
...  
Keyword(s):  
Sulphuric Acid ◽  
Acid Pretreatment ◽  
Monolithic Catalysts

Influence of support acid pretreatment on the behaviour of CoOx/γ-alumina monolithic catalysts in the CH4-SCR reaction

2006 ◽  
Vol 67 (3-4) ◽  
pp. 270-278 ◽  
Author(s):  
J MARTIN ◽  
P AVILA ◽  
S SUAREZ ◽  
M YATES ◽  
A MARTINROJO ◽  
...  
Keyword(s):  
Acid Pretreatment ◽  
Monolithic Catalysts

Dilute sulphuric acid pretreatment and enzymatic hydrolysis of Jatropha curcas fruit shells for ethanol production

2014 ◽  
Vol 53 ◽  
pp. 148-153 ◽  
Author(s):  
Ariel García ◽  
Cristóbal Cara ◽  
Manuel Moya ◽  
Jorge Rapado ◽  
Jürgen Puls ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Ethanol Production ◽  
Sulphuric Acid ◽  
Jatropha Curcas ◽  
Acid Pretreatment ◽  
Hydrolysis Of

Dilute sulphuric acid pretreatment and enzymatic hydrolysis of Moringa oleifera empty pods

2013 ◽  
Vol 44 ◽  
pp. 227-231 ◽  
Author(s):  
Ena Hernández ◽  
Ariel García ◽  
Michael López ◽  
Jürgen Puls ◽  
Juan C. Parajó ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Sulphuric Acid ◽  
Moringa Oleifera ◽  
Acid Pretreatment ◽  
Hydrolysis Of

ROLE OF THE SEED COAT IN GERMINATION OF CISTUS POPULIFOLIUS L.

1997 ◽  
Vol 45 (4) ◽  
pp. 329-331 ◽  
Author(s):  
Félix Pérez-García ◽  
Adrian Escudero
Keyword(s):  
Sulphuric Acid ◽  
Seed Coat ◽  
Hot Water ◽  
Thermal Treatments ◽  
Distilled Water ◽  
Acid Pretreatment ◽  
Dry Heat

Effect of mechanical scarification, dry heat, hot water, and sulphuric acid on the germination behavior ofCistus populifoliusL. (rockrose) was studied. Untreated seeds after 60 days of incubation germinated less than 7%. After thermal treatments, 90% germination was achieved, and sulphuric acid pretreatment gave 61% germination. Soaking in distilled water did not increase germination, but scarification of the seed coat gave 57%. Hardness and impermeability of the seed coat appear to cause deep dormancy inC. populifoliusseeds.

scholarly journals Application and use of sulphuric acid pretreatment to improve seed germination of three acacia species

REFORESTA ◽  
2017 ◽  
pp. 1 ◽  
Author(s):  
Abdenour Kheloufi ◽  
Lahouaria Mounia Mansouri ◽  
Faiza Zineb Boukhatem
Keyword(s):  
Seed Germination ◽  
Sulphuric Acid ◽  
Germination Rate ◽  
Germination Percentage ◽  
Water Control ◽  
Acid Pretreatment ◽  
Acacia Species ◽  
Negative Effect ◽  
Mean Time ◽  
Positive Effect

The experiments were led to study the effect of pretreatments and their duration on germination behavior of three Acacia species A. cyanophylla Lindl., A. farnesiana L. and A. decurrens Willd. by analyzing three parameters (GP: germination percentage; MGT: germination mean time (days) and GRI: germination rate index) for various times of incubation (5, 10 and 15 days) in Petri dishes. Pre-sowing treatment included immersion in concentrated sulphuric acid for 60, 90 and 120 minutes. The sowing in distilled water (Control) had no positive effect on the germination induction. Generally, the seed pretreatments were very useful to improve germination. Time of immersion significantly (P < 0.0001) affected GP, MGT and GRI in all species. Increasing the duration of sulphuric acid immersion (from 60 to 120 min) improved the germination percentages for A. cyanophylla and A. farnesiana seeds to (98% and 99%), respectively. However, increasing this duration had a negative effect on A. decurrens seed germination, reducing the final germination percentage from 97% at 60 minutes of immersion to 43% at 120 minutes.

Sign in / Sign up

Export Citation Format

Share Document