Korea conference, Waste to Energy, 2019


Topic: Waste to Energy
About typical mistakes of ideas to collect and even to sort the waste plastic
Author: David Judbarovski, systems engineering, principle inventor, retired
judbarovski@gmail.com, Israel

I can’t deny a desirability to extract the waste plastic from nature and human living environment, even if being expensive in reasonable limits. Moreover, it can be profitable business in some practical cases.
But to collect and even to sort any waste plastic at home before throwing, it is counterproductive and non-comfortable, and can be even not healthy, especially if food plastic.
Much more reasonable the waste plastic to be thrown jointly with other unsorted home garbage to municipal garbage container for following garbage industrial treatment, e.g. for its gasification, and a most economical and clean way can be high temperature catalytic water steam reforming, and its high temperature heat as a by-product and its main product being  syngas (i.e. mix of hydrogen with carbon monoxide) can be used for cheap electricity production and for chemical industry and for many other industries, including wide spectra plastics production and for artificial fuels synthesis..
For example, see Soyi Luo et al, “Syngas production by catalytic gasification of municipal solid waste in fixed bed reactor”,
https://www.sciencedirect.com/science/article/abs/pii/S0360544212004677#1 for Abstract
They wrote: the highest H2 content (54,22%) and gas yield ( 1.74Nm3/kg ) achieved at 900 C, S/C being 2.41 with NiO/y-Al2O3 as catalyst, including gasification of char and reforming of tar.
     

Comments

Post a Comment

Popular posts from this blog

Progressive city-car realization and powering-Updated,#1

Progressive city-car realization and powering-Updated, #1 Author: David Judbarovski, principle inventor, retired engineer, Israel judbarovski@gmail.com   Short CV: https://www.linkedin.com/in/david-judbarovski-1390944a/ Archive since 2017 yr: http://judbarovski.blogspot.be Archive since 2006 yr.: http://judbarovski.livejournal.com [3791]-3/11/2017,   My three levels’ conception of progressive transportation was disclosed in http://www.judbarovski.blogspot.co.il/2017/05/progressive-transportation-manifesto.html  (Progressive transportation manifesto, May 02. 2017). Its first level is a city-car.   Special designed city-car is a car moved electrically and equipped by very small battery as a city-grid element, and it isn’t big news now. Such cars are to be much cheaper and simpler than conventional cars and save a lot of energy. But I can suppose strictly to reject all sorts of powering them from underground, because it is energy ineffective and creates additional
Read more

Equipment for Short Take-off and Landing (E-STOL)

Equipment for Short Take-off and Landing (E-STOL) Author: David Judbarovski, systems engineering, principle inventor judbarovski@gmail.com , Linkedin Abstract My E-STOL comprises a aerodynamic resistance of quite small area (SAR), being rigid and turnable, and a water jet device (WJD), comprising high pressure water jets in corners of quadrangular frame. The SAR can be very quickly erected or downed to turn it into additional wing-kite for short gliding in the sky. The WJD provides stabilization below stall speed and serves as start support, while landing or take-off. It is very attractive for Navy aviation, because allows high cruise speed, extremely short runway, and better reliability vs. helicopter, and we can repeat approach, if taking a portion of ambient sea water, in flight by simple pails.     The water is thrust out through the jets by gases at high pressure after ignition of “liquid vigorous combustible” (LVC), e.g. stoichiometric composition of amm
Read more

Breakthrough new fuel is better than oil

Breakthrough new fuel is better than oil David Judbarovski, systems engineering, principle inventor judbarovski@gmail.com Abstract Lithium hydride being reformed by water vapor in hydrogen then by fuel cell can create 5.25 kWh electricity/ kg. LiH, vs. 3.75 kWh per kg gasoline, while that LiH needs for its recycling 10.3 kWh renewable electricity , so system energy efficiency is 50% without any harmful exhaust. For the oil, analogous technology or by burning the both are followed by the oil recycling, they are 25% energy efficient with a lot of harmful exhaust.. Really For Lithium hydride, it was evaluated by me in the article : “Breakthrough kind of electric vehicle” in https://judbarovski.blogspot.com /2022/11 , posted at Nov. 05, 2022 For the oil, it is recycled from atmospheric CO2 and hydrogen produced by the water splitting.
Read more